[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

CA2600875A1 - Production of activated char using hot gas - Google Patents

Production of activated char using hot gas Download PDF

Info

Publication number
CA2600875A1
CA2600875A1 CA002600875A CA2600875A CA2600875A1 CA 2600875 A1 CA2600875 A1 CA 2600875A1 CA 002600875 A CA002600875 A CA 002600875A CA 2600875 A CA2600875 A CA 2600875A CA 2600875 A1 CA2600875 A1 CA 2600875A1
Authority
CA
Canada
Prior art keywords
coal
gas stream
activated char
fuel
carbonaceous feedstock
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.)
Granted
Application number
CA002600875A
Other languages
French (fr)
Other versions
CA2600875C (en
Inventor
Lawrence E. Bool, Iii
Chien-Chung Chao
Mark K. Weise
Jurron L. D. Bradley
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Praxair Technology Inc
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US11/078,517 external-priority patent/US20060204429A1/en
Application filed by Individual filed Critical Individual
Publication of CA2600875A1 publication Critical patent/CA2600875A1/en
Application granted granted Critical
Publication of CA2600875C publication Critical patent/CA2600875C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/06—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
    • B01D53/10—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds with dispersed adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/64—Heavy metals or compounds thereof, e.g. mercury
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/3078—Thermal treatment, e.g. calcining or pyrolizing
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
    • C01B3/34—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/30—Active carbon
    • C01B32/312—Preparation
    • C01B32/336—Preparation characterised by gaseous activating agents
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/30—Active carbon
    • C01B32/39—Apparatus for the preparation thereof
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/40—Carbon monoxide
    • 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
    • C10J3/46—Gasification of granular or pulverulent flues in suspension
    • C10J3/48—Apparatus; Plants
    • C10J3/485—Entrained flow gasifiers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/102—Carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/25—Coated, impregnated or composite adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/60—Heavy metals or heavy metal compounds
    • B01D2257/602—Mercury or mercury compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B01D2258/0283—Flue gases
    • 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
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0913—Carbonaceous raw material
    • C10J2300/093—Coal
    • 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
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0953—Gasifying agents
    • C10J2300/0959—Oxygen
    • 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
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0953—Gasifying agents
    • C10J2300/0973—Water
    • 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
    • C10J2300/18—Details of the gasification process, e.g. loops, autothermal operation
    • C10J2300/1846—Partial oxidation, i.e. injection of air or oxygen only

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

A gas mixture preheated to high temperatures using an oxy-fuel, an oxygen-enriched air-fuel or an air-fuel burner is used to devolatilize and partially oxidize carbonaceous feedstock, thereby producing an active residual char that can be used in applications utilizing activated carbon. Use of hot gas and ground carbonaceous feedstock allows the equipment to be minimized, thereby allowing the activated carbon to be produced at or near points of use, for example the production of activated char at or near utility boilers for use in the reduction of mercury emissions from flue gas streams.

Claims (68)

1. A method for producing activated char, the method comprising:

generating at least one gas stream containing an oxidant, the gas stream having a temperature of at least 800°F;

mixing carbonaceous feedstock with the at least one gas stream such that the carbonaceous feedstock undergoes devolatilization and partial oxidation, thereby producing activated char and byproducts.
2. The method of claim 1, wherein the byproducts comprise carbon monoxide and hydrogen.
3. The method of claim 2, wherein the byproducts are suitable for use as fuel.
4. The method of claim 3, wherein the byproducts are used as a reburning fuel.
5. The method of claim 1, wherein the activated char and the byproducts are produced at a facility that utilizes the activated char.
6. The method of claim 1, further comprising quenching the powdered activated char with a quenching media.
7. The method of claim 6, wherein the quenching media comprises a fog of water droplets.
8. The method of claim 7, wherein the quenching media includes a dopant for doping the activated char.
9. The method of claim 8, wherein the dopant is KBr.
10. The method of claim 7, wherein the activated char is further treated with steam to increase the surface area thereof.
11. The method of claim 6, wherein the quenching media comprises nitrogen.
12. The method of claim 11, wherein the activated char is further treated with steam to increase the surface area thereof.
13. The method of claim 1, further comprising adding a secondary reactive gas prior to mixing the carbonaceous feedstock with the at least one gas stream.
14. The method of claim 13, wherein the secondary reactive gas stream comprises steam.
15. The method of claim 1, further comprising adding a solid, a liquid or a gaseous additive subsequent to devolatilization and partial oxidation.
16. The method of claim 1, wherein the temperature of the at least one gas stream is at least 2000°F.
17. The method of claim 1, wherein the activated char is a powder.
18. The method of claim 1, wherein the carbonaceous feedstock is selected from coals, petroleum coke, biomass materials, nutshells, nut hulls and mixtures thereof.
19. The method of claim 18, wherein the carbonaceous material comprises coal.
20. The method of claim 1, wherein the step of generating the at least one gas stream comprises mixing an oxidant and a fuel.
21. The method of claim 20, further including mixing steam with the oxidant and the fuel.
22. The method of claim 20, wherein the oxidant and the fuel are mixed at or near the stochiometric ratio of the oxidant and the fuel.
23. The method of claim 20, wherein the oxidant and the fuel are mixed in a ratio of excess oxidant than the stochiometric ratio of the oxidant and the fuel.
24. A method for producing activated char, the method comprising:
generating a superheated gas stream, the gas stream having a temperature of at least 800°F;
mixing carbonaceous feedstock with the superheated gas stream such that the carbonaceous feedstock undergoes devolatilization and partial oxidation, thereby producing activated char and byproducts.
25. The method of claim 24, wherein the superheated gas stream comprises an inert gas and the carbonaceous feedstock undergoes devolatilization and pyrolysis in substitution of devolatilization and partial oxidation.
26. The method of claim 25, wherein the inert gas comprises nitrogen.
27. The method of claim 1, wherein the byproducts comprise carbon monoxide and hydrogen.
28. The method of claim 24, wherein the byproducts are suitable for use as fuel.
29. The method of claim 28, wherein the byproducts are used as a reburning fuel.
30. The method of claim 24, wherein the activated char and the byproducts are produced at a facility that utilizes the activated char.
31. The method of claim 24, further comprising quenching the powdered activated char with a quenching media.
32. The method of claim 31, wherein the quenching media comprises a fog of water droplets.
33. The method of claim 32, wherein the quenching media includes a dopant for doping the activated char.
34. The method of claim 33, wherein the dopant is KBr.
35. The method of claim 31, wherein the activated char is further treated with steam to increase the surface area thereof.
36. The method of claim 31, wherein the quenching media comprises nitrogen.
37. The method of claim 36, wherein the activated char is further treated with steam to increase the surface area thereof.
38. The method of claim 24, further comprising adding a secondary reactive gas prior to mixing the carbonaceous feedstock with the at least one gas stream.
39. The method of claim 38, wherein the secondary reactive gas stream comprises steam.
40. The method of claim 24, further comprising adding a solid, a liquid or a gaseous additive subsequent to devolatilization and partial oxidation.
41. The method of claim 24, wherein the temperature of the at least one gas stream is at least 2000°F.
42. The method of claim 24, wherein the activated char is a powder.
43. The method of claim 24, wherein the carbonaceous feedstock is selected from coals, petroleum coke, biomass materials, nutshells, nut hulls and mixtures thereof.
44. The method of claim 43, wherein the carbonaceous material comprises coal.
45. A method for producing activated char, the method comprising:

generating at least one gas stream containing an oxidant, the gas stream having a temperature of at least 800°F;

mixing carbonaceous feedstock containing a dopant with the at least one gas stream such that the carbonaceous feedstock undergoes devolatilization and partial oxidation, thereby producing activated char and byproducts.
46. The method of claim 45, wherein the dopant comprises NaBr, KBr or mixtures thereof.
47. The method of claim 45, wherein the carbonaceous material comprises coal.
48. The method of claim 47, wherein the coal comprises a sub-bituminous coal.
49. The method of claim 48, wherein the sub-bituminous coal comprises Powder River Basin (PRB) coal.
50. The method of claim 47, wherein the coal comprises a bituminous coal.
51. The method of claim 51, wherein the bituminous coal comprises a Utah bituminous coal.
52. The method of claim 47, wherein the coal comprises lignite coal.
53. The method of claim 45, wherein the carbonaceous feedstock and dopant are formed by wet mixing prior to mixing with the at least one gas stream.
54. The method of claim 53, wherein the dopant comprises NaBr, KBr or mixtures thereof.
55. The method of claim 53, wherein the carbonaceous material comprises coal.
56. The method of claim 47, wherein the coal comprises a sub-bituminous coal.
57. The method of claim 56, wherein the sub-bituminous coal comprises Powder River Basin (PRB) coal.
58. The method of claim 47, wherein the coal comprises a bituminous coal.
59. The method of claim 58, wherein the bituminous coal comprises a Utah bituminous coal.
60. The method of claim 47, wherein the coal comprises lignite coal.
61. The method of claim 45, wherein the carbonaceous feedstock and dopant are formed by dry mixing prior to mixing with the at least one gas stream.
62. The method of claim 61, wherein the dopant comprises NaBr, KBr or mixtures thereof.
63. The method of claim 61, wherein the carbonaceous material comprises coal.
64. The method of claim 63, wherein the coal comprises a sub-bituminous coal.
65. The method of claim 64, wherein the sub-bituminous coal comprises Powder River Basin (PRB) coal.
66. The method of claim 63, wherein the coal comprises a bituminous coal.
67. The method of claim 66, wherein the bituminous coal comprises a Utah bituminous coal.
68. The method of claim 63, wherein the coal comprises lignite coal.
CA2600875A 2005-03-14 2006-03-13 Production of activated char using hot gas Expired - Fee Related CA2600875C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US11/078,517 2005-03-14
US11/078,517 US20060204429A1 (en) 2005-03-14 2005-03-14 Production of activated char using hot gas
US11/224,590 US7704921B2 (en) 2005-03-14 2005-09-12 Production of activated char using hot gas
US11/224,590 2005-09-12
PCT/US2006/008894 WO2006099290A1 (en) 2005-03-14 2006-03-13 Production of activated char using hot gas

Publications (2)

Publication Number Publication Date
CA2600875A1 true CA2600875A1 (en) 2006-09-21
CA2600875C CA2600875C (en) 2011-05-17

Family

ID=36992039

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2600875A Expired - Fee Related CA2600875C (en) 2005-03-14 2006-03-13 Production of activated char using hot gas

Country Status (4)

Country Link
EP (1) EP1866246A4 (en)
KR (1) KR101275436B1 (en)
CA (1) CA2600875C (en)
WO (1) WO2006099290A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7767007B2 (en) * 2006-12-08 2010-08-03 Praxair Technology, Inc. Mercury adsorbents compatible as cement additives
US9427744B1 (en) 2013-01-17 2016-08-30 Calgon Carbon Corporation Methods for processing carbonaceous materials
KR101998190B1 (en) * 2018-02-12 2019-07-12 한국에너지기술연구원 Method for Preparation of mesoporous activated carbon from needle coke via 2nd steam activation

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3958957A (en) * 1974-07-01 1976-05-25 Exxon Research And Engineering Company Methane production
US4475986A (en) * 1983-09-07 1984-10-09 Peabody Development Company Stable activated carbon process using a moving grate stoker furnace
FI931785A (en) * 1993-04-20 1994-10-21 Valtion Teknillinen Process and apparatus for producing liquid fuel by pyrolysis of raw fuel
WO1999008777A1 (en) * 1997-08-19 1999-02-25 Electric Power Research Institute, Inc. Apparatus and method for removal of vapor phase contaminants from a gas stream by in-situ activation of carbon-based sorbents
US6534442B1 (en) * 1998-05-14 2003-03-18 Caigon Carbon Corporation Process for production of carbonaceous chars having catalytic activity
JP4493824B2 (en) * 2000-09-28 2010-06-30 日本パイオニクス株式会社 Purification method and cleaning agent for harmful gas
US6521021B1 (en) * 2002-01-09 2003-02-18 The United States Of America As Represented By The United States Department Of Energy Thief process for the removal of mercury from flue gas
US6726888B2 (en) * 2002-01-25 2004-04-27 General Electric Company Method to decrease emissions of nitrogen oxide and mercury

Also Published As

Publication number Publication date
EP1866246A1 (en) 2007-12-19
KR20070121742A (en) 2007-12-27
EP1866246A4 (en) 2012-11-07
WO2006099290A1 (en) 2006-09-21
KR101275436B1 (en) 2013-06-19
CA2600875C (en) 2011-05-17

Similar Documents

Publication Publication Date Title
Samiran et al. Progress in biomass gasification technique–with focus on Malaysian palm biomass for syngas production
Ruiz et al. Biomass gasification for electricity generation: Review of current technology barriers
Jayaraman et al. Gasification characteristics of petcoke and coal blended petcoke using thermogravimetry and mass spectrometry analysis
Sharma et al. Investigation into co-gasifying Indian coal and biomass in a down draft gasifier—Experiments and analysis
Wei et al. Effect of biomass leachates on structure evolution and reactivity characteristic of petroleum coke gasification
Chen et al. Effect of oxygen enriched atmospheres on combustion of bagasse, coal and theirs blends by thermogravimetric analysis
Das et al. Single particle combustion studies of coal/biomass fuel mixtures
Jenkins Thermal gasification of biomass—a primer
Wagner et al. Coal gasification
Zhang et al. TG-MS study on co-combustion characteristics and coupling mechanism of coal gasification fly ash and coal gangue by ECSA®
Perry The gasification of coal
Jalalabadi et al. A TGA study of CO 2 gasification reaction of various types of coal and biomass
Zhang et al. Experimental study on conversion characteristics of anthracite and bituminous coal during preheating-gasification
Ren et al. Co-gasification reactivity of petroleum coke with coal and coal liquefaction residue
WO2017086070A1 (en) Method for gasifying carbonaceous fuel, method for operating iron mill, and method for producing gasified gas
CA2697107C (en) Method and apparatus for blending lignite and coke slurries
Namkung et al. Characteristics of novel synthetic fuels using coal and sewage sludge impregnated bioliquid applying for a coal combustion system
CA2600875A1 (en) Production of activated char using hot gas
KR101263143B1 (en) Combustion fuel mixture and manufacturing method thereof
Jia et al. Synergistic co-combustion of carbon-rich fraction from coal gasification fine slag and corncob char: Performance, mechanism, kinetics, and thermodynamics
Caliskan Sarikaya et al. Synergistic Interactions During Cocombustion of Lignite, Biomass, and Their Chars
Yousefzad Farrokhi et al. Combustion behavior and kinetics of Turkish lignite blended with biomass/magnesite dust
Prajitno et al. Steam gasification of chars of ash-free coals extracted using 1-methylnaphthalene and N-methyl-2-pyrrolidone
Haykiri-Acma et al. Synergistic investigation for co-combustion of biochars and lignite—Thermogravimetric analysis approach
Gan et al. Waste coffee shell are used as tempering agents and low-rank coal in industrial silicon smelting

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20210913

MKLA Lapsed

Effective date: 20200313