WO2009004307A1 - Process for the separation of pressurised carbon dioxide from steam - Google Patents
Process for the separation of pressurised carbon dioxide from steam Download PDFInfo
- Publication number
- WO2009004307A1 WO2009004307A1 PCT/GB2008/002190 GB2008002190W WO2009004307A1 WO 2009004307 A1 WO2009004307 A1 WO 2009004307A1 GB 2008002190 W GB2008002190 W GB 2008002190W WO 2009004307 A1 WO2009004307 A1 WO 2009004307A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- steam
- carbon dioxide
- stream
- cooling
- cooled
- Prior art date
Links
Classifications
-
- 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
- B01D53/002—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 condensation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
- F01K17/06—Returning energy of steam, in exchanged form, to process, e.g. use of exhaust steam for drying solid fuel or plant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K21/00—Steam engine plants not otherwise provided for
- F01K21/04—Steam engine plants not otherwise provided for using mixtures of steam and gas; Plants generating or heating steam by bringing water or steam into direct contact with hot gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/16—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/302—Sulfur oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/50—Carbon oxides
- B01D2257/502—Carbon monoxide
Definitions
- This invention relates to the separation of carbon dioxide gas from a pressurised stream of steam and carbon dioxide.
- a pressurised stream of steam and carbon dioxide is typically produced by the combustion of a fuel gas with oxygen at elevated pressures and is used to generate shaft power, which may be used for the generation of electric power.
- Such pressurised stream of steam and carbon dioxide can contain particulate matter depending on the method of combustion. Such particulate matter is preferentially substantially removed using well known means such as filtration, by cyclone separation or, preferentially, liquid washing.
- this carbon dioxide is separated from the steam.
- the separation step is carried out at elevated pressure.
- the separated carbon dioxide remains at elevated pressure and the sensible heat in the stream is recovered and used in the raising of steam for the further generation of shaft power which may be used for the generation of further electric power.
- This invention has particular utility in the case where the combustion gases are fed to a hot expander to generate shaft power.
- Indirect cooling means the transfer of heat from a stream at one temperature to a lower temperature stream without any mixing of the stream, such as through the medium of a metal wall separating the two streams in a heat exchanger .
- Direct cooling means the transfer of heat from a stream at one temperature to a lower temperature stream through direct contact of the two streams in a vessel.
- Traditional power generation from fossil feedstocks consists of the release of the fossil feedstock chemical energy in the form of heat through its oxidation or combustion with oxygen. The released heat is used to raise steam which may be expanded in an expander or steam turbine to generate shaft power. Because carbon dioxide is the principal non-condensable by-product of the oxidation of a fossil feedstock, this results in a major contribution of carbon dioxide emissions normally released to the atmosphere.
- Traditional power generation also uses atmospheric air as the normal source of oxygen for the oxidation or combustion process. This means that the very high concentration of nitrogen associated with oxygen in atmospheric air will be mixed with the byproduct carbon dioxide resulting from the oxidation or combustion process.
- Such a known process may be carried out either at atmospheric pressure or at elevated pressure.
- the heats of combustion and water condensation are recovered by indirect heat exchange to raise steam to be used to generate shaft power and to substantially condense by indirectly cooling with typically water or air all the steam, thus leaving the residual carbon dioxide to be compressed from sub- atmospheric pressure .
- the elevated pressure alternative conventionally recovers the heats of combustion and water condensation by a combination of hot expansion of the products of combustion to generate shaft power plus indirect heat exchange to raise steam to be used to generate shaft power and to substantially condense by indirectly cooling with typically water or air all the steam, thus leaving the residual carbon dioxide to be compressed from sub- atmospheric pressure.
- the hot expander device used to expand the products of combustion to generate power may require cooling for the mechanical parts of the expander. Hitherto such cooling has been provided either by steam or else by recycled carbon dioxide. In both cases the cooling medium must be sufficiently dry to avoid any condensation of water vapour in the expander, particularly if any acid gases are present .
- the standard steam condenser is two phase as the steam is mixed with a high proportion of non-condensable carbon dioxide.
- Such two phase condensers are used in the recovery of heat from geologically sourced natural steam and are known as "geothermal condensers" . They are characterised by being larger and therefore more expensive than conventional steam condensers of the same heat load because of the higher volume required to permit effective separation of the steam condensate from the non-condensable gas content .
- any other water soluble non-condensing contaminants contained in the carbon dioxide, resulting from impurities in the fossil fuel, and particularly any oxides of sulphur, will be partially dissolved in the steam condensate.
- the condensation of the steam content of the steam/carbon dioxide mixture is effected at an elevated pressure above 1 bar absolute, and preferably between 4 and 15 bars absolute, by heat exchange with a stream of water from which the heat content of the steam is recovered for use in the raising of steam.
- Preferably direct cooling using a counter-current stream of circulating water is used.
- This cooling is effected sufficiently to condense out essentially all, i.e. as much as is practically possible, viz. usually at least 90% by volume, of the steam present in the stream.
- Any non- water soluble non-condensing contaminants such as nitrogen can be left in the carbon dioxide stream as a diluent or separated out if desired.
- the carbon dioxide and other non-condensing gases are available at a pressure of at least 1 bar absolute and preferably between 4 and 15 bar absolute.
- steam/carbon dioxide mixture can be extracted before cooling down to the water condensation point, compressed, and recycled for use as a cooling medium for the hot expander used to generate power, as an alternative to steam or recycled carbon dioxide .
- the carbon dioxide is separated from the steam/carbon dioxide stream in a simple and non- expensive system. 4.
- the heat of condensation of the steam is recovered at a higher temperature and at a relatively low cost compared to the case when two phase condensers operating at pressures at or below 1 bar absolute are used.
- Any superheat content that is, the heat content above condensation of the steam and carbon dioxide stream can be recovered by indirect heat exchange down to the saturation/condensation point.
- Condensation of the stream above 1 bar absolute means that the condensation and separation occurs at a higher temperature than it would be at or below 1 bar absolute. This means that a much higher proportion of sulphur oxides in the steam/carbon dioxide stream resulting from the combustion of sulphur impurities in the fossil feedstock will be present in the non-condensing part of the stream compressed for transportation to storage. If desired, this can be removed from the compressed non-condensing stream using means of scrubbing with a suitable solvent .
- This flow sheet shows the carbon dioxide/steam separation section of a power generation process in which a fossil feedstock is oxidised to form a pressurised stream of steam and carbon dioxide which is used to produce electric power via shaft power.
- Stream (5) is taken from the bottom of vessel (11) at 154°C, fed to pump (12) , and then cooled in heat exchanger (13) to 45°C and circulated to the top of vessel (11) to enter above the packing. 79411 kg.mols of surplus water (6) are taken from the water circuit for recycle to the front end of the overall process.
- the CO 2 stream (2) is scrubbed by water to remove oxides of sulphur in packed vessel (14) leaving the resulting cleaned CO2 stream still at a pressure of greater than 1 bar absolute.
- Pump (15) circulates the water stream (7) from the bottom of vessel (14) to the top with a concentrate of dissolved acid gases being taken off as stream (8) .
- the water balance of the circuit is maintained with water stream (9) taken from water stream (6) at 45°C.
- a side stream can be taken off before heat exchanger (10) and recycled after compression to the hot expander (not shown) from which the stream (1) came to act as a cooling medium for the mechanical parts thereof .
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Carbon And Carbon Compounds (AREA)
- Treating Waste Gases (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08762496A EP2175964A1 (en) | 2007-07-04 | 2008-06-26 | Process for the separation of pressurised carbon dioxide from steam |
CA2697235A CA2697235A1 (en) | 2007-07-04 | 2008-06-26 | Process for the separation of pressurised carbon dioxide from steam |
AU2008272719A AU2008272719A1 (en) | 2007-07-04 | 2008-06-26 | Process for the separation of pressurised carbon dioxide from steam |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0712929.9 | 2007-07-04 | ||
GB0712929A GB0712929D0 (en) | 2007-07-04 | 2007-07-04 | Process for the separation of pressurised carbon dioxide from steam |
GB0800641.3 | 2008-01-15 | ||
GB0800641A GB0800641D0 (en) | 2008-01-15 | 2008-01-15 | Process for the separation of pressurized carbon dioxide from steam |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009004307A1 true WO2009004307A1 (en) | 2009-01-08 |
Family
ID=39769487
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2008/002190 WO2009004307A1 (en) | 2007-07-04 | 2008-06-26 | Process for the separation of pressurised carbon dioxide from steam |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2175964A1 (en) |
AU (1) | AU2008272719A1 (en) |
CA (1) | CA2697235A1 (en) |
WO (1) | WO2009004307A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8192530B2 (en) | 2007-12-13 | 2012-06-05 | Alstom Technology Ltd | System and method for regeneration of an absorbent solution |
US8864878B2 (en) | 2011-09-23 | 2014-10-21 | Alstom Technology Ltd | Heat integration of a cement manufacturing plant with an absorption based carbon dioxide capture process |
US8911538B2 (en) | 2011-12-22 | 2014-12-16 | Alstom Technology Ltd | Method and system for treating an effluent stream generated by a carbon capture system |
US9028654B2 (en) | 2012-02-29 | 2015-05-12 | Alstom Technology Ltd | Method of treatment of amine waste water and a system for accomplishing the same |
US9101912B2 (en) | 2012-11-05 | 2015-08-11 | Alstom Technology Ltd | Method for regeneration of solid amine CO2 capture beds |
US9133407B2 (en) | 2011-02-25 | 2015-09-15 | Alstom Technology Ltd | Systems and processes for removing volatile degradation products produced in gas purification |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4434613A (en) * | 1981-09-02 | 1984-03-06 | General Electric Company | Closed cycle gas turbine for gaseous production |
DE3501456A1 (en) * | 1985-01-17 | 1986-07-17 | Linde Ag, 6200 Wiesbaden | Process for reducing the SO2 and NOx content of gases |
US6148602A (en) * | 1998-08-12 | 2000-11-21 | Norther Research & Engineering Corporation | Solid-fueled power generation system with carbon dioxide sequestration and method therefor |
US20020043064A1 (en) * | 2000-10-13 | 2002-04-18 | Griffin Timothy Albert | Method for operating a power plant |
US20020124558A1 (en) * | 2000-10-13 | 2002-09-12 | Dieter Winkler | Method and device for producing hot working gases |
US20040016237A1 (en) * | 2002-02-11 | 2004-01-29 | Ovidiu Marin | Integrated air separation and oxygen fired power generation system |
US20040244381A1 (en) * | 2002-12-09 | 2004-12-09 | Bernard Becker | Method and device for operating a gas turbine with a fossil-fuel fired combustion chamber |
DE102004061729A1 (en) * | 2003-12-19 | 2005-07-14 | Technische Universität Dresden | Desulfurization of carbon dioxide stream from carbon dioxide-free power station of oxy-fuel type involves condensing stream in flue gas desulfurization plant by means of cooled washing suspension |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0502596B2 (en) * | 1991-03-07 | 1999-08-25 | Mitsubishi Jukogyo Kabushiki Kaisha | Apparatus and process for removing carbon dioxide from combustion exhaust gas |
JP3814206B2 (en) * | 2002-01-31 | 2006-08-23 | 三菱重工業株式会社 | Waste heat utilization method of carbon dioxide recovery process |
-
2008
- 2008-06-26 AU AU2008272719A patent/AU2008272719A1/en not_active Abandoned
- 2008-06-26 CA CA2697235A patent/CA2697235A1/en not_active Abandoned
- 2008-06-26 EP EP08762496A patent/EP2175964A1/en not_active Withdrawn
- 2008-06-26 WO PCT/GB2008/002190 patent/WO2009004307A1/en active Application Filing
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4434613A (en) * | 1981-09-02 | 1984-03-06 | General Electric Company | Closed cycle gas turbine for gaseous production |
DE3501456A1 (en) * | 1985-01-17 | 1986-07-17 | Linde Ag, 6200 Wiesbaden | Process for reducing the SO2 and NOx content of gases |
US6148602A (en) * | 1998-08-12 | 2000-11-21 | Norther Research & Engineering Corporation | Solid-fueled power generation system with carbon dioxide sequestration and method therefor |
US20020043064A1 (en) * | 2000-10-13 | 2002-04-18 | Griffin Timothy Albert | Method for operating a power plant |
US20020124558A1 (en) * | 2000-10-13 | 2002-09-12 | Dieter Winkler | Method and device for producing hot working gases |
US20040016237A1 (en) * | 2002-02-11 | 2004-01-29 | Ovidiu Marin | Integrated air separation and oxygen fired power generation system |
US20040244381A1 (en) * | 2002-12-09 | 2004-12-09 | Bernard Becker | Method and device for operating a gas turbine with a fossil-fuel fired combustion chamber |
DE102004061729A1 (en) * | 2003-12-19 | 2005-07-14 | Technische Universität Dresden | Desulfurization of carbon dioxide stream from carbon dioxide-free power station of oxy-fuel type involves condensing stream in flue gas desulfurization plant by means of cooled washing suspension |
Non-Patent Citations (1)
Title |
---|
See also references of EP2175964A1 * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8192530B2 (en) | 2007-12-13 | 2012-06-05 | Alstom Technology Ltd | System and method for regeneration of an absorbent solution |
US9133407B2 (en) | 2011-02-25 | 2015-09-15 | Alstom Technology Ltd | Systems and processes for removing volatile degradation products produced in gas purification |
US8864878B2 (en) | 2011-09-23 | 2014-10-21 | Alstom Technology Ltd | Heat integration of a cement manufacturing plant with an absorption based carbon dioxide capture process |
US8911538B2 (en) | 2011-12-22 | 2014-12-16 | Alstom Technology Ltd | Method and system for treating an effluent stream generated by a carbon capture system |
US9028654B2 (en) | 2012-02-29 | 2015-05-12 | Alstom Technology Ltd | Method of treatment of amine waste water and a system for accomplishing the same |
US9101912B2 (en) | 2012-11-05 | 2015-08-11 | Alstom Technology Ltd | Method for regeneration of solid amine CO2 capture beds |
Also Published As
Publication number | Publication date |
---|---|
CA2697235A1 (en) | 2009-01-08 |
EP2175964A1 (en) | 2010-04-21 |
AU2008272719A1 (en) | 2009-01-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2750780C (en) | Method and device for separating of carbon dioxide from an exhaust gas of a fossil-fired power plant | |
US8268050B2 (en) | CO2 separation apparatus and process for oxy-combustion coal power plants | |
US8080090B2 (en) | Process for feed gas cooling in reboiler during CO2 separation | |
KR101379110B1 (en) | Electrical power generation method | |
US20010037728A1 (en) | Method for removing carbon dioxide from the exhaust gas from a gas turbine plant, and device for carrying out the method | |
US8065879B2 (en) | Thermal integration of oxygen plants | |
US7766999B2 (en) | Process for vaporizing the product CO2 at two different pressures during CO2 separation | |
US8430947B2 (en) | Water recovery from steam-assisted production | |
CN101231130A (en) | Purification of carbon dioxide | |
EP1690040A2 (en) | Purification works for thermal power plant | |
EP2175964A1 (en) | Process for the separation of pressurised carbon dioxide from steam | |
CN103086375A (en) | Purification of carbon dioxide | |
JP2013533426A (en) | Jet engine with carbon capture | |
JP2016517389A (en) | Recovery of sulfur trioxide absorption heat | |
WO2009003238A1 (en) | Improvements in the recovery of carbon dioxide | |
WO2014098154A1 (en) | Carbon dioxide collection device and method for operating said collection device | |
AU2010243947B2 (en) | Method for operating a steam turbine power plant as well as device for creating steam from lignite | |
CN107073388A (en) | Renovation process for the energy-conservation solvent of collecting carbonic anhydride | |
US9157369B2 (en) | Waste heat utilization for energy efficient carbon capture | |
US20040237528A1 (en) | Process for producing liquid carbon dioxide from combustion gas at normal pressure | |
RU2428375C1 (en) | Method of preparing sulphur dioxide for pumping into formation through injection well | |
RU2433164C2 (en) | Methods of producing synthetic gas and operation of gas generator with fixed layer and dry bottom | |
Ha | CO2 separation apparatus and process for oxy-combustion coal power plants | |
US20180163571A1 (en) | Oxyfuel power plant process |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 08762496 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2008272719 Country of ref document: AU Ref document number: 2008762496 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2697235 Country of ref document: CA |
|
ENP | Entry into the national phase |
Ref document number: 2008272719 Country of ref document: AU Date of ref document: 20080626 Kind code of ref document: A |