EP2948240A1 - System for making renewable fuels - Google Patents
System for making renewable fuelsInfo
- Publication number
- EP2948240A1 EP2948240A1 EP14743445.0A EP14743445A EP2948240A1 EP 2948240 A1 EP2948240 A1 EP 2948240A1 EP 14743445 A EP14743445 A EP 14743445A EP 2948240 A1 EP2948240 A1 EP 2948240A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- catalyst
- biomass
- syngas
- volatile
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2/00—Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon
- C10G2/30—Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon from carbon monoxide with hydrogen
- C10G2/32—Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon from carbon monoxide with hydrogen with the use of catalysts
- C10G2/33—Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon from carbon monoxide with hydrogen with the use of catalysts characterised by the catalyst used
- C10G2/331—Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon from carbon monoxide with hydrogen with the use of catalysts characterised by the catalyst used containing group VIII-metals
- C10G2/333—Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon from carbon monoxide with hydrogen with the use of catalysts characterised by the catalyst used containing group VIII-metals of the platinum-group
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/02—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of cellulose-containing material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/02—Multi-step carbonising or coking processes
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2/00—Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon
- C10G2/30—Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon from carbon monoxide with hydrogen
- C10G2/32—Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon from carbon monoxide with hydrogen with the use of catalysts
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2/00—Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon
- C10G2/30—Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon from carbon monoxide with hydrogen
- C10G2/32—Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon from carbon monoxide with hydrogen with the use of catalysts
- C10G2/33—Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon from carbon monoxide with hydrogen with the use of catalysts characterised by the catalyst used
- C10G2/331—Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon from carbon monoxide with hydrogen with the use of catalysts characterised by the catalyst used containing group VIII-metals
- C10G2/332—Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon from carbon monoxide with hydrogen with the use of catalysts characterised by the catalyst used containing group VIII-metals of the iron-group
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G3/00—Production of liquid hydrocarbon mixtures from oxygen-containing organic materials, e.g. fatty oils, fatty acids
- C10G3/42—Catalytic treatment
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G45/00—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds
- C10G45/02—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing
- C10G45/04—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing characterised by the catalyst used
- C10G45/06—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing characterised by the catalyst used containing nickel or cobalt metal, or compounds thereof
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G45/00—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds
- C10G45/02—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing
- C10G45/04—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing characterised by the catalyst used
- C10G45/10—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing characterised by the catalyst used containing platinum group metals or compounds thereof
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G45/00—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds
- C10G45/02—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing
- C10G45/04—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing characterised by the catalyst used
- C10G45/12—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing characterised by the catalyst used containing crystalline alumino-silicates, e.g. molecular sieves
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G45/00—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds
- C10G45/44—Hydrogenation of the aromatic hydrocarbons
- C10G45/46—Hydrogenation of the aromatic hydrocarbons characterised by the catalyst used
- C10G45/48—Hydrogenation of the aromatic hydrocarbons characterised by the catalyst used containing nickel or cobalt metal, or compounds thereof
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G45/00—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds
- C10G45/44—Hydrogenation of the aromatic hydrocarbons
- C10G45/46—Hydrogenation of the aromatic hydrocarbons characterised by the catalyst used
- C10G45/52—Hydrogenation of the aromatic hydrocarbons characterised by the catalyst used containing platinum group metals or compounds thereof
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G45/00—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds
- C10G45/44—Hydrogenation of the aromatic hydrocarbons
- C10G45/46—Hydrogenation of the aromatic hydrocarbons characterised by the catalyst used
- C10G45/54—Hydrogenation of the aromatic hydrocarbons characterised by the catalyst used containing crystalline alumino-silicates, e.g. molecular sieves
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G50/00—Production of liquid hydrocarbon mixtures from lower carbon number hydrocarbons, e.g. by oligomerisation
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/58—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels combined with pre-distillation of the fuel
- C10J3/60—Processes
- C10J3/64—Processes with decomposition of the distillation products
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
- C10G2300/1003—Waste materials
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
- C10G2300/1011—Biomass
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
- C10G2300/1011—Biomass
- C10G2300/1014—Biomass of vegetal origin
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/40—Characteristics of the process deviating from typical ways of processing
- C10G2300/4006—Temperature
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2400/00—Products obtained by processes covered by groups C10G9/00 - C10G69/14
- C10G2400/08—Jet fuel
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/164—Integration of gasification processes with another plant or parts within the plant with conversion of synthesis gas
- C10J2300/1656—Conversion of synthesis gas to chemicals
- C10J2300/1659—Conversion of synthesis gas to chemicals to liquid hydrocarbons
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P30/00—Technologies relating to oil refining and petrochemical industry
- Y02P30/20—Technologies relating to oil refining and petrochemical industry using bio-feedstock
Definitions
- the present invention relates generally to systems for making renewable fuels, and more particularly to the thermal chemical conversion of biomass to renewable fuels and other useful chemical compounds, including gasoline and diesel, via a series of catalysts using a programmable system.
- Bond breaking and making are essential aspects of conversion of biomass to industrially useful products such as gasoline and diesel.
- Various forms of laboratory and small scale commercial biomass pyrolyzers have been developed to generate useful chemical products from the controlled pyro lysis of biomaterials ranging from wood chips to sewage sludge.
- syngas also sometimes known as synthesis gas
- bio-oil or pyrolysis oil there is considerable effort in the development of milder pyrolyzing conditions, which typically results in a condensed liquid commonly called bio-oil or pyrolysis oil.
- Many forms of pyrolyzers have been developed at the laboratory level to produce these intermediate compounds, which are collectively referred to as bio-oil or pyrolysis oil.
- Configurations include simple tube furnaces where the biomass is roasted in ceramic boats, ablative pyrolyzers where wood is rubbed against a hot surface, various forms of fluidized bed pyrolyzers where biomass is mixed with hot sand, and various simpler configurations that are based on earlier coking oven designs.
- the fundamental problem with the resultant pyrolysis oil is that it is made up of hundreds to thousands of compounds, which are the result of subjecting the raw biomass to a wide range of temperature, time, and pressure profiles in bulk. When this process is complicated by the thousands of major bio-compounds in the original bio-feedstock, the result is a nearly intractable array of resultant compounds all mixed together.
- Pyrolysis oils from such processes are typically not thermodynamically stable. They contain active oxygenated free radicals that are catalyzed by organic acids and bases such that these oils typically evolve over a period of a few days from light colored liquids to dark mixtures with tar and resinous substances entrained in the mix.
- Embodiments of the present invention provide a system and method for the conversion of biomass to renewable fuels.
- renewable fuel any combustible fuel that is derived from biomass and that is useful for transportation or other purposes, including such fuels as gasoline, diesel, jet fuel, or other useful fuel blends (such as a blend of benzene, toluene and xylene (BTX)).
- the system comprises a device containing a programmable number of processing stations (N) and an array of catalysts; a means for subjecting biomass within these stations to programmable temperatures (Tstart); a means for incrementing individual processing station temperatures by programmable increments ( ⁇ ) to produce a volatile and non-volatile component; a means for incrementing the non-volatile component temperature by ⁇ to further produce additional volatile and non-volatile components; and a means for subjecting the volatile components generated in each station through a series of catalysts selected from the group dehydration catalysts, aromatization catalysts, and gas-upgrading catalysts to produce at least one renewable fuel.
- Some embodiments of the invention involve a system and method for creating a programmable process wherein chemical compounds from biomass decomposition are routed to distinct catalyst chains to produce products containing renewable fuels and other value added products.
- Additional embodiments are directed toward a process for extracting the maximum amount of energy from biomass for the conversion to gasoline or diesel that depends on the temperature of devolatilization of the biomass.
- Yet another embodiment of this invention involves a process for extracting the maximum amount of energy from biomass for the conversion to gasoline or diesel that depends on load balancing a catalyst output at certain temperatures.
- Some embodiments of this invention are directed to systems for the conversion of biomass to renewable fuel, comprising: a programmable number of processing stations (N) for subjecting biomass to at least one programmable starting temperature (Tstart) and for incrementing the temperature by programmable increments(AT) to produce a volatile and a non- volatile component; a series of catalyst columns; means for subjecting the volatile components generated in each station through the series of catalyst columns to produce at least one renewable fuel; a hydrotreating catalyst; and means for subjecting at least one renewable fuel to the hydrotreating catalyst to produce at least one hydro treated renewable fuel.
- N programmable number of processing stations
- Tstart programmable starting temperature
- AT programmable increments
- Some embodiments of this invention are directed to systems for the conversion of biomass to renewable fuel, comprising: a programmable number of processing stations (N) for subjecting biomass to at least one programmable starting temperature (Tstart) and for incrementing the temperature by programmable increments(AT) to produce a volatile and a non- volatile component; a series of catalyst columns; means for subjecting the volatile components generated in each station through the series of catalyst columns to produce at least one renewable fuel; a syngas conversion catalyst; and a methanol/dimethyl ether synthesis catalyst; wherein a co-solvent is added to volatile components or added to at least one of the processing stations, wherein the solvent is selected from the group consisting of alcohols, aldehydes, ketones, ethers, carboxylic acids, and hydrocarbons, and wherein the co- solvent is generated via treatment of the non- volatile component with the syngas conversion catalyst to generate syngas and subsequent treatment of a portion of the syngas with the methanol/dimethyl ether synthesis catalyst.
- N programm
- Some embodiments of this invention are directed to systems for the conversion of biomass to renewable fuel, comprising: a programmable number of processing stations (N) for subjecting biomass to at least one programmable starting temperature (Tstart) and for incrementing the temperature by programmable increments ( ⁇ ) to produce a volatile and a non- volatile component; a series of catalyst columns; means for subjecting the volatile components generated in each station through the series of catalyst columns to produce at least one renewable fuel; a syngas conversion catalyst; and a Fischer-Tropsch catalyst;
- syngas conversion catalyst is used to convert a portion of the non- volatile component to syngas, and wherein a portion of the result in syngas is subjected to the Fischer-Tropsch catalyst to generate synthetic paraffinic kerosene.
- FIG. 1 is a drawing illustrating N processing stations on a race track, wherein each processing station is operating at a particular temperature.
- FIG. 2 is a flow diagram illustrating a programmable catalyst chain with three stations, in accordance with the principles of the invention.
- FIG. 3 is a more detailed flow diagram of the programmable catalyst chain of FIG. 2, in accordance with the principles of the invention.
- FIG. 4 is a flowchart depicting an algorithm that depends on incrementing the processing station temperature until a desired maximum temperature is reached, in
- FIG. 5 is a flowchart depicting an algorithm that depends on balancing output from various catalyst chains, in accordance with the principles of the invention.
- FIG. 6 A is a plot of fuel output versus temperature for sunflower seeds using a dehydration catalyst, aromatization catalyst and gas-upgrading catalyst
- FIG. 6B shows a comparative output of the A cut (after dehydration catalyst) versus U.S. Diesel #2 and Biodiesel B99
- FIGS. 6C and 6D show gas chromatograms (GC) data for renewable fuels obtained after the aromatization catalyst and gas-upgrading catalyst.
- FIG. 7 is a GC plot of volatile gases collected after the aromatization catalyst using red fir as input biomass.
- FIG. 8 is a flow diagram illustrating a programmable catalyst chain with seven stations (four optional), in accordance with the principles of the invention.
- the present invention is directed toward a programmable system for routing biomass decomposition products through a system comprised of processing stations and a series of catalysts. It realizes a programmable system for maximizing output from a pyro lysis system.
- Methods of introducing biomass into a processing station include introduction via conveyor belts, hoppers, and/or pulverizers.
- the pyrolyzer described herein may include these components enveloped in one system, where, for example, the pulverization and pyrolysis components are intimately connected.
- Biomass may be introduced in raw form or dry form, or may be dried within the pyrolysis chamber when the pyrolysis starts.
- biomass includes any material derived or readily obtained from plant sources. Such material can include without limitation: (i) plant products such as bark, leaves, tree branches, tree stumps, hardwood chips, softwood chips, grape pumice, sugarcane bagasse, switchgrass; and (ii) pellet material such as grass, wood and hay pellets, crop products such as com, wheat and kenaf. This term may also include seeds such as vegetable seeds, fruit seeds, and legume seeds.
- biomass can also include: (i) waste products including animal manure such as poultry derived waste; (ii) commercial or recycled material including plastic, paper, paper pulp, cardboard, sawdust, timber residue, wood shavings and cloth; (iii) municipal waste including sewage waste; (iv) agricultural waste such as coconut shells, pecan shells, almond shells, coffee grounds; and (v) agricultural feed products such as rice straw, wheat straw, rice hulls, corn stover, corn straw, and corn cobs.
- waste products including animal manure such as poultry derived waste
- commercial or recycled material including plastic, paper, paper pulp, cardboard, sawdust, timber residue, wood shavings and cloth
- municipal waste including sewage waste
- agricultural waste such as coconut shells, pecan shells, almond shells, coffee grounds
- agricultural feed products such as rice straw, wheat straw, rice hulls, corn stover, corn straw, and corn cobs.
- a processing station 50 may comprise any oaf number of well-known pyrolysis reactors, including fixed bed reactors, fluidized bed reactors, circulating bed reactors, bubbling fluid bed reactors, vacuum moving bed reactors, entrained flow reactors, cyclonic or vortex reactors, rotating cone reactors, auger reactors, ablative reactors, microwave or plasma assisted pyrolysis reactors, and vacuum moving bed reactors. It may also comprise a chamber in a biomass fractionating systems described in co-owned U.S. Patent Publication No. 2010/0180805, the content of which is incorporated herein by reference in its entirety.
- each processing station 50 is operated at a certain temperature (marked next to each processing station in FIG. 1 as ⁇ ⁇ . ,. ⁇ ⁇ ).
- the Nth station is operated at temperature T .
- the first processing station is Station 1.
- Each processing station 50 can be dialed to any temperature that is equal to or higher than the previous processing station.
- the starting processing station temperature is typically determined by the initial composition of the biomass.
- the device accommodates a total of N processing stations, where N is operator adjustable from 2 to 1000, preferably between 2 and 100, and most preferably between 2 and 50.
- a station temperature can be incremented by a variable increment ⁇ , which can be in the range of 0°C to 200°C. In one embodiment, all processing stations 50 operate at the same temperature.
- each subsequent processing station temperature is incrementally higher by ⁇ from the previous processing station.
- a group of adjacent processing stations are operated at the same temperature T, followed by another group of adjacent processing stations which are operated at temperature T + ⁇ * ⁇ , followed still by another group of processing stations operating at temperature T + y*AT, where x and y are any numbers greater or equal to 1.
- the processing stations 50 produce volatile and non-volatile components when heated. Because the material can be heated within a relatively narrow temperature range, the nonvolatile component (in the form of partially formed char) has additional volatile components embedded therein, which are extractable and processed in subsequent processing stations. The output of these processing stations is connected to an array of catalysts as described below.
- Biomass is typically comprised of a wide array of compounds classified within the categories of cellulose, hemicelluloses, lignin, starches, and lipids. These compounds go through multiple steps of decomposition when subject to the pyrolysis process.
- hemicelluloses comprise C5 sugars such as fructose and xylose, which yield furfural and hydroxymethylfurfurals upon thermolysis. The latter compounds can be further converted to fuel intermediates furan and tetrahydrofuran.
- the relatively narrow temperature windows experienced within a processing station 50 allows for the collection of these useful intermediates.
- FIG. 2 depicts an embodiment of the present invention having eight processing stations 50 and a series of catalyst channels comprising a dehydration catalyst 60, an aromatization catalyst 61 and a gas-upgrading catalyst 62.
- the output from each catalytic array when cooled is comprised of volatile gases, renewable fuel and water.
- the volatile gases are then programmed to pass through subsequent catalytic columns.
- the volatile components from any given processing station can be channeled through one or more catalysts 60, 61, 62 using selector switches 55, 56, 57.
- Line 21 shows that an optional co- solvent may be added as an additional input to the aromatization catalyst 61.
- the co-solvent may be generated from a typical syngas converter 64.
- Carbon monoxide and hydrogen for the syngas converter may be obtained via well-known reactions with the left-over carbonaceous solid in a processing station 50.
- the co-solvent may comprise oxygenates such as aldehydes, alcohols, ketones, ethers, and carboxylates, as well as hydrocarbons.
- the volatile components from the processing station 50 are selected to go through a dehydration catalyst 60, then the output is passed through a room temperature separator 32, which separates the output into water, renewable fuel 33, and volatile gases 34.
- the volatile gases are then routed through the aromatization catalyst 61 to produce a product that upon cooling with cold separator 35 gives water, renewable fuel 36 and volatile gases 37, which may include combustible gases 41.
- These combustible gases can then be released via a variable release valve 58.
- the variable release valve can control the routing of the volatile gases 37 to either a gas-upgrading catalyst chamber, or a combustible gas treatment plant, or both.
- the product from the gas-upgrading catalyst 62 Upon cooling via cold separator 38, the product from the gas-upgrading catalyst 62 produces water, renewable fuel 39 and volatile gases 40, which may include combustible gas mixture 42.
- This combustible gas mixture can be either treated in a combustible gas treatment plant or recycled via a recirculation pump 59 to the aromatization catalyst chamber.
- the combustible gas mixture 42 may be recycled to one or more of the following: (a) at least one or more of the processing stations 50, (b) the dehydration catalyst 60, (c) the aromatization catalyst 61, and the (d) gas-upgrading catalyst 62.
- FIG. 3 shows an embodiment 300 of the present invention using knowledge of the initial composition of the biomass for converting various types of biomass feedstocks with three processing stations 50 and an array of catalytic columns for optimal product yield.
- the biomass feedstock's in various stations can come from a single biomass input which are subsequently processed using the three stations, or from multiple independent biomass inputs. While the number of processing stations can vary, the same catalytic columns are used to convert the volatile gases to renewable fuels. The order in which the catalytic columns are selected can vary.
- Station 1 when fed with a lipid rich biomass (A) produces a product comprising a volatile gas and a carbonaceous solid.
- Station 1 preferably operates at less than 300°C.
- the volatile components are passed through a dehydration catalyst 60 to produce a first product.
- This first product is cooled using a room temperature trap and is comprised of water, a first renewable fuel and a second volatile component.
- the first renewable fuel is then recovered.
- the dehydration catalyst operates at less than 2 bar pressure, preferably in the temperature range of 400-700°C, most preferably in the range of 400°C to 500°C.
- the dehydration catalyst 60 can be any acid catalyst. Suitable acid catalysts for the present invention are heterogeneous (or solid) acid catalysts.
- the at least one solid acid catalyst may be supported on at least one catalyst support (herein referred to as a supported acid catalyst).
- Solid acid catalysts include, but are not limited to, (1) heterogeneous heteropolyacids (HP As) and their salts, (2) natural clay minerals, such as those containing alumina or silica (including zeolites), (3) action exchange resins, (4) metal oxides, (5) mixed metal oxides, (6) inorganic acids or metal salts derived from these acids such as metal sulfides, metal sulfates, metal sulfonates, metal nitrates, metal phosphates, metal
- Suitable HPAs include compounds of the general Formula X a MbO c q" , where X is a heteroatom such as phosphorus, silicon, boron, aluminum, germanium, titanium, zirconium, cerium, cobalt or chromium, M is at least one transition metal such as tungsten, molybdenum, niobium, vanadium, or tantalum, and q, a, b, and c are individually selected whole numbers or fractions thereof. Methods for preparing HPAs are well known in the art.
- Natural clay minerals are well known in the art and include, without limitation, kaolinite, bentonite, attapulgite, montmorillonite and zeolites.
- Suitable cation exchange resins are styrene- divinylbenzene copolymer-based strong cationexchange resins such as Amberlyst® (Rohm & Haas; Philadelphia, PA), Dowex® (for example, Dowex® Monosphere M-31) (Dow;
- the metal components of groups 4 to 6 may be selected from elements from Groups I, Ila, Ilia, Vila, Villa, lb and lib of the Periodic Table of the Elements, as well as aluminum, chromium, tin, titanium and zirconium. Fluorinated sulfonic acid polymers can also be used as solid acid catalysts for the process of the present invention.
- the second volatile component is then routed to an aromatization catalyst 61 to produce a second product.
- This second product in turn is cooled using a cold trap at 0-20°C, more preferably at 0-5°C.
- the output from the cold trap is comprised of water, a second renewable fuel and a third volatile component.
- the second renewable fuel is then recovered.
- the aromatization catalyst 61 is operated at less than 2 bar pressure, preferably in the temperature range of 300°C to 500°C, most preferably in the range of 325°C to 400°C.
- the aromatization catalyst 61 can be comprised of MFI type zeolites and metal modified MFI type zeolites, where the metal is selected from the group consisting of: Group VIB metals, Group VIIB metals, Group VIII metals, Group IB metals, Group IIB metals, Ga, In, and all combinations thereof.
- the third volatile component is then routed to a gas-upgrading catalyst 62 to produce a third product.
- This third product in turn is cooled using a cold trap at 0-20°C, more preferably at 0-5°C.
- the output from the cold trap is comprised of water, third renewable fuel and a fourth volatile component.
- the third renewable fuel is then recovered.
- the gas- upgrading catalyst 62 is operated at less than 2 bar pressure and preferably in the temperature range of 400°C to 700°C, most preferably in the range of 500°C to 600°C.
- the gas- upgrading catalyst 62 can be comprised of metal modified MFI typed zeolites, where the metal is selected from the group consisting of: Ga, Zn, In, Mo, W, Cr, Pt, Pd, Rh, Ru, Au, Ir, and combinations thereof.
- the fourth volatile component can be recirculated to at least one of the following: a) one or more processing stations 50, b) the dehydration catalyst 60, c) the aromatization catalyst 61, d) the gas-upgrading catalyst 62, and e) a combustible gas treatment plant.
- Station 2 can comprise a hemicellulose rich biomass (B) derived from another biomass feedstock or a carbonaceous solid from previous station 50 that contains volatile components that did not volatilize in the prior station.
- Station 2 preferably operates at greater than 300°C and less than 500°C.
- the temperature in Station 2 can be programmable incremented ( ⁇ ) by the operator.
- the temperature increment can preferably be in the range of 10-200°C.
- Station 2 produces product which is comprised of a volatile component and a carbonaceous solid that is different than the carbonaceous solid produced in the previous station.
- the volatile component produced in Station 2 is then routed through the aromatization catalyst 61 to produce a fourth product.
- This fourth product is then cooled using a cold trap at 0-20°C, most preferably at 0-5°C.
- the fourth renewable fuel is then recovered.
- the output from the cold trap is comprised of water, a fourth renewable fuel and a fifth volatile component.
- the aromatization catalyst 61 is operated at less than 2 bar pressure and preferably in the temperature range of 300°C to 500°C, most preferably in the range of 325°C to 400°C.
- the fifth volatile component is then routed to the gas-upgrading catalyst 62 to produce a fifth product.
- This fifth product in turn is cooled using a cold trap at 0-20°C, most preferably at 0-5°C.
- the output from the cold trap is comprised of water, a fifth renewable fuel and a sixth volatile component.
- the fifth renewable fuel is then recovered.
- the gas- upgrading catalyst 62 is operated at less than 2 bar pressure and preferably in the temperature range of 400°C to 700°C, most preferably in the range of 500°C to 600°C.
- the sixth volatile component can be recirculated to at least one of the following: a) one or more processing stations 50, b) the dehydration catalyst 60, c) the aromatization catalyst 61, d) the gas- upgrading catalyst 62, and e) a combustible gas treatment plant.
- Station 3 operates at greater than 500°C processing either an independent lignin-rich biomass feedstock or the leftover carbonaceous solid from the previous station.
- Station 3 produces a product which contains volatile gases and a different carbonaceous solid.
- These volatile components are passed through a dehydration catalyst 60 to produce a sixth product.
- This sixth product is cooled using a room temperature trap and is comprised of water, a sixth renewable fuel and a seventh volatile component.
- the sixth renewable fuel is then recovered.
- the dehydration catalyst 60 operates at less than 2 bar pressure and preferably in the temperature range of 400-700°C, most preferably in the range of 400°C to 500°C.
- the dehydration catalyst 60 can be the same as described above.
- aromatization catalyst 61 to produce a seventh product.
- This seventh product in turn is cooled using a cold trap at 0-20°C, most preferably at 0-5°C.
- the output from the cold trap is comprised of water, a seventh renewable fuel and an eighth volatile component.
- the seventh renewable fuel is then recovered.
- the aromatization catalyst 61 is operated at less than 2 bar pressure and preferably in the temperature range of 300°C to 500°C, most preferably in the range of 325°C to 400°C.
- the eighth volatile component is then routed to the previously described gas- upgrading catalyst 62 to produce an eighth product.
- This eighth product in turn is cooled using a cold trap at 0-20°C, most preferably at 0-5°C.
- the output from the cold trap is comprised of water, an eighth renewable fuel and a ninth volatile component.
- the eighth renewable fuel is then recovered.
- the gas-upgrading catalyst 62 is operated at less than 2 bar pressure and preferably in the temperature range of 400°C to 700°C, most preferably in the range of 500°C to 600°C.
- the ninth volatile component can be recirculated to at least one of the following: a) one or more processing stations 50, b) the dehydration catalyst 60, c) the aromatization catalyst 61, d) the gas-upgrading catalyst 62, and e) a combustible gas treatment plant.
- FIG. 3 involves an approach that exploits knowing the initial composition of the biomass input, and then adjusting the routing of the decomposition products based on this initial composition. Accordingly, given a hemicellulose rich feedstock, it may be beneficial to set all of the processing stations 50 to a temperature greater than 300°C. Similarly, given a lignin-rich feedstock, it may be beneficial to operate all the processing stations 50 at temperatures greater than 500°C. Such an operation is expected to utilize all the stations in the most efficient manner for maximizing fuel output.
- FIG. 4 shows a temperature algorithm flowchart 400 for a single processing station. For three cuts derived from lipids, hemicellulose and lignins, one would select T L OW around 300°C, and T HI G H around 500°C.
- T T start at operation 405.
- Operation 410 involves raising the biomass temperature by ⁇ .
- operation 415 involves determining whether T ⁇ T L OW for the lipids. If so, the next steps entail routing the biomass through the lipid catalyst chain (operation 420), collecting the product (operation 425), and proceeding to raise the biomass temperature by ⁇ (operation 410). If operation 415 is false, operation 440 involves determining whether T L ow ⁇ T ⁇ T HI G H for the hemicellulose. If so, the next steps include routing the biomass through the hemicellulose catalyst chain(operation 445), collecting the product (operation 450), and proceeding to raise the biomass temperature by ⁇ (operation 410).
- operation 470 involves determining whether T> T HI G H for the lignins. If so, the next steps entail routing the biomass through the lignin catalyst chain (operation 475), collecting the product (operation 480), and proceeding to raise the biomass temperature by ⁇ (operation 410). The algorithm ends if operation 470 is false.
- FIG. 5 depicts a load balancing algorithm flowchart 500 for one processing station.
- knowledge of composition is not required. Rather, the optimal catalytic route is determined by comparing product output yield from each route. Subsequently, the temperature is incremented until a final desired temperature is achieved.
- T T start at operation 505.
- Operation 510 involves opening all routes.
- operation 515 comprises raising the biomass temperature by ⁇ .
- this approach splits into three routes, specifically catalyst chain A (operation 520), catalyst chain B (operation 525), and catalyst chain C (operation 530).
- Product is collected for each catalyst chain in subsequent operations 540, 545, 550.
- Operation 560 entails determining the optimal catalytic route is calculated by comparing product output yield from each route and determining the catalyst chain having the highest product yield.
- operation 565 comprises closing all routes except the one with the highest yield.
- Operation 570 involves determining whether the product output is below a threshold level. If so, the algorithm proceeds to open all routes (operation 510).
- FIG. 8 depicts another embodiment of the present invention having eight processing stations 50 and a series of catalyst channels comprising a dehydration catalyst 60, an aromatization catalyst 61, and a gas-upgrading catalyst 62.
- the output from each catalytic array when cooled is comprised of volatile gases, renewable fuel and water.
- the volatile gases are then programmed to pass through subsequent catalytic columns.
- the volatile components from any given processing station can be channeled through one or more catalysts 60, 61, 62 using selector switches 55, 56, 57.
- Line 21 shows that an optional co- solvent may be added as an additional input to the aromatization catalyst 61.
- the co-solvent may be generated from a typical syngas converter (e.g. a gasification carbon catalyst) 64. Carbon monoxide and hydrogen for the syngas converter (to generate the co-solvent) may be obtained via well-known reactions with the leftover carbonaceous solid in a processing station 50.
- the co-solvent may comprise oxygenates such as aldehydes, alcohols, ketones, ethers, and carboxylates, as well as hydrocarbons.
- a portion of the syngas generated by the syngas converter may optionally be directed to a synthetic paraffinic kerosene catalyst 66 (e.g., an appropriate Fischer-Tropsch catalyst) to generate synthetic paraffinic kerosene.
- a synthetic paraffinic kerosene catalyst 66 e.g., an appropriate Fischer-Tropsch catalyst
- Exemplary Fischer-Tropsch catalysts that may be used for synthetic paraffinic kerosene generation include Fe, Co, or Ru based Fischer- Tropsch catalysts. Such catalysts are typically operated at between about 150°C to about 400°C; with hydrogen to carbon monoxide ratios of between about 1 :0.5 to about 1 :5; and with operating pressures between about 100 psi to about 1000 psi.
- a portion of the syngas generated by the syngas converter may optionally be directed to a methanol/DME synthesis catalyst 70 to enrich the co-solvent in methanol and/or dimethyl ether.
- a methanol/DME synthesis catalyst capable of generating lower alcohols such as methanol, ethanol, propanol, butanol or isobutanol may be used.
- catalyst systems capable of performing this function with a syngas feedstock may be used.
- catalyst system capable of making ethers such as dimethyl ether, and/or corresponding ethers from their mixed alcohol may be used.
- Such catalysts for example may be copper-based or ruthenium- based.
- Exemplary copper-based catalysts for methanol synthesis from syngas include, but not limited to catalysts comprising metals such as copper, zinc, alumina, manganese, and cesium.
- Exemplary catalysts for making higher alcohols include but are not limited to ruthenium on alumina.
- the catalyst may include a solid acid component such as alumina, silica-alumina, zeolites, sulfated zirconias, and heteropoly acids.
- An acid component in the catalyst conveniently helps the formation of ethers such as dimethylether, diethyl ether, etc. from their corresponding alcohols formed at the copper-based catalyst or the ruthenium-based catalyst.
- the volatile components from the processing station 50 are selected to go through a dehydration catalyst 60, then the output is passed through a room temperature separator 32, which separates the output into water, renewable fuel 33, and volatile gases 34.
- the volatile gases 34 and optional co-solvent from line 21 are then routed through the aromatization catalyst 61 to produce a product that upon cooling with cold separator 35 gives water, renewable fuel 36 and volatile gases 37, which may include combustible gases 41.
- Renewable fuel 36 may optionally be directed to a hydrotreating catalyst 72, where a portion of the renewable fuel 36 is hydrogenated (e.g., a portion of aromatics may be converted to cycloparaffins ).
- Hydrotreating catalysts typically include one or more metals supported on a high surface area inorganic carrier.
- the hydrotreating catalyst may include perovskite type materials and mixed metal oxide materials.
- Exemplary typical hydro treating catalysts include a noble metal such as Pt or Pd supported on a high surface area inorganic carrier such as alumina or zeolites.
- the hydrotreating catalyst include one or more dopants, such as cerium and lanthanum, to stabilize the catalytic metal on the inorganic carrier.
- the hydrotreating catalyst system may also contain base metals such as Ni, Cu, Co, Mn, and Fe. Achieving hydrogenation with a hydrotreating catalyst typically occurs by subjecting the reactants to hydrogen gas at partial pressures of between about 100 to about 1000 psi in the temperature window of about 100° C to about 400° C.
- the hydrotreating catalyst 72 may also remove or reduce the amount of one or contaminants, such as nitrogen, sulfur, oxygen, and one or more metals, in the resulting hydrotreated fuel 74. In some embodiments, at least about 70%, 80%, 90%, or more of one or more contaminants in the renewable fuel 36 are reduced by the hydrotreating catalyst 72.
- variable release valve 58 can control the routing of the volatile gases 37 to either a gas-upgrading catalyst chamber, or a combustible gas treatment plant, or both.
- the product from the gas-upgrading catalyst 62 produces water, renewable fuel 39 and volatile gases 40, which may include combustible gas mixture 42.
- This combustible gas mixture can be either treated in a combustible gas treatment plant or recycled via a recirculation pump 59 to the aromatization catalyst chamber.
- the combustible gas mixture 42 may be recycled to one or more of the following: (a) at least one or more of the processing stations 50, (b) the dehydration catalyst 60, (c) the aromatization catalyst 61, and the (d) gas-upgrading catalyst 62.
- this illustrative example is the equivalent to six processing stations 50 operating at six different temperatures wherein the input biomass is fed at 325°C and the final carbonaceous solid is removed at 575°C.
- 150g of biomass consisting of commercial sunflower seeds along with dimethyl ether as co-solvent were devolatilized starting at a temperature of 325°C and ending at 575°C with a temperature increment of 50°C for every hour.
- 13 lg of methanol was passed through a silica alumina catalyst to generate the required co-solvent.
- the output was passed through three different catalyst columns in series including a dehydration catalyst 60, an aromatization catalyst 61, and a gas-upgrading catalyst 62 as illustrated in FIG.
- FIG. 6A is a chart showing the fuel collected at each temperature for each catalyst at half-hour intervals.
- a grand total of 46.5 ml of renewable fuel is produced by the three catalysts by the end of the run, including: (i) a total of 26.5 ml of renewable fuel collected from the aromatization catalyst 61, (ii) a total of 18 ml of renewable fuel collected from the dehydration catalyst 60, and (iii) a total of 2 ml of renewable fuel collected from the gas-upgrading catalyst 62.
- FIG. 6B is a chart showing the gas chromatogram profile of the renewable fuel collected from the dehydration catalyst 60 along with comparative charts of regular US Diesel #2 fuel and Bio Diesel B99 obtained from a commercial source.
- the renewable fuel produced from the dehydration catalyst according to the present invention is significantly different when compared to the Biodiesel B99 and more resembles the profile of the regular US Diesel #2.
- Gas chromatograms shown in FIGS. 6C and 6D represent renewable fuel composition from the aromatization catalyst 61 and the gas-upgrading catalyst 62, respectively. Significant amount of aromatic hydrocarbons are present in both renewable fuels.
- This illustrative example is the equivalent to six processing stations operating at six different temperatures wherein the input biomass is again fed at 325°C and the final carbonaceous solid is removed at 525°C.
- 76g of biomass consisting of commercial corn cobs along with lOOg of methanol were devolatilized starting at a temperature of 325°C and ending at 525°C with a temperature increment of 50°C for every hour.
- corn cobs contain significant amounts of hemicellulose (C5 sugars), which may decompose in the presence of a dehydration catalyst 60, leading to more breakage of chemical bonds than necessary.
- the output was passed through two different catalyst columns in series, one consisting of an aromatization catalyst 61, followed by a gas- upgrading catalyst 62 as illustrated in FIG. 3 for cut B.
- ZSM-5 was employed as the aromatization catalyst
- Ga modified ZSM-5 was employed as the gas- upgrading catalyst.
- a total of 29 ml of renewable fuel was collected by the end of the run from the aromatization catalyst, while total of 5.5 ml of renewable fuel was collected from the gas-upgrading catalyst. Further analysis of the two renewable fuels collected indicated significant presence of aromatic compounds similar in composition as shown in Illustrative Example 1.
- This illustrative example is the equivalent to six processing stations operating at six different temperatures wherein the input biomass is again fed at 325°C and the final carbonaceous solid is removed at 575°C.
- lOOg of biomass consisting of red fir wood along with 13 lg of methanol were devolatilized starting at a temperature of 325°C and ending at 575°C with a temperature increment of 50°C for every hour.
- red fir contains significant amounts of lignins which are needed to be decomposed for efficient biomass conversion.
- the output was passed through two different catalyst columns in series, beginning with the dehydration catalyst 60, and followed by an aromatization catalyst 61.
- This experiment utilized silica alumina as the dehydration catalyst, and Zn and Cr modified ZSM-5 as the aromatization catalyst.
- Total of 30.5 ml of renewable fuel was collected by the end of the run from the aromatization catalyst 61, whereas a total of 1 ml of renewable fuel was collected from the dehydration catalyst 60.
- the fuel from the silica alumina catalyst was diesel-like, the fuel from the aromatization catalyst had significant amounts of aromatic hydrocarbons.
- the volatile gases after the aromatization catalyst 61 had significant amounts of C1-C5 non-condensable hydrocarbons, as shown in FIG. 7.
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