BR8801882A - Processo para obtencao de co2 e de n2 a partir dos gases formados em um motor ou em uma turbina de combustao interna - Google Patents

Processo para obtencao de co2 e de n2 a partir dos gases formados em um motor ou em uma turbina de combustao interna

Info

Publication number
BR8801882A
BR8801882A BR8801882A BR8801882A BR8801882A BR 8801882 A BR8801882 A BR 8801882A BR 8801882 A BR8801882 A BR 8801882A BR 8801882 A BR8801882 A BR 8801882A BR 8801882 A BR8801882 A BR 8801882A
Authority
BR
Brazil
Prior art keywords
engine
obtaining
internal combustion
combustion turbine
gases formed
Prior art date
Application number
BR8801882A
Other languages
English (en)
Inventor
Juan Pascual Mercader
Pablo Rivera Villamanan
Original Assignee
Carburos Metallicos Sa Soc Esp
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
Application filed by Carburos Metallicos Sa Soc Esp filed Critical Carburos Metallicos Sa Soc Esp
Publication of BR8801882A publication Critical patent/BR8801882A/pt

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/75Multi-step processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/38Removing components of undefined structure
    • B01D53/40Acidic components
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/81Solid phase processes
    • B01D53/82Solid phase processes with stationary reactants
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00Nitrogen; Compounds thereof
    • C01B21/04Purification or separation of nitrogen
    • C01B21/0405Purification or separation processes
    • C01B21/0494Combined chemical and physical processing
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00Carbon; Compounds thereof
    • C01B32/50Carbon dioxide
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02GHOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G5/00Profiting from waste heat of combustion engines, not otherwise provided for
    • F02G5/02Profiting from waste heat of exhaust gases
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2253/00Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10Inorganic adsorbents
    • B01D2253/106Silica or silicates
    • B01D2253/108Zeolites
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2256/00Main component in the product gas stream after treatment
    • B01D2256/22Carbon dioxide
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/02Separation 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
    • B01D53/04Separation 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 stationary adsorbents
    • B01D53/0462Temperature swing adsorption
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/02Separation 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
    • B01D53/04Separation 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 stationary adsorbents
    • B01D53/047Pressure swing adsorption
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/02Separation 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
    • B01D53/04Separation 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 stationary adsorbents
    • B01D53/047Pressure swing adsorption
    • B01D53/0473Rapid pressure swing adsorption
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02CCAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00Capture or disposal of greenhouse gases
    • Y02C20/40Capture or disposal of greenhouse gases of CO2
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10Process efficiency
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/151Reduction of greenhouse gas [GHG] emissions, e.g. CO2
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S62/00Refrigeration
    • Y10S62/928Recovery of carbon dioxide
    • Y10S62/929From natural gas
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S62/00Refrigeration
    • Y10S62/928Recovery of carbon dioxide
    • Y10S62/93From nitrogen
BR8801882A 1987-04-21 1988-04-20 Processo para obtencao de co2 e de n2 a partir dos gases formados em um motor ou em uma turbina de combustao interna BR8801882A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES8701147A ES2003265A6 (es) 1987-04-21 1987-04-21 Procedimiento para la obtencion de co2 y n2 a partir de los gases generados en un motor o turbina de combustion interna

Publications (1)

Publication Number Publication Date
BR8801882A true BR8801882A (pt) 1988-11-22

Family

ID=8250536

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8801882A BR8801882A (pt) 1987-04-21 1988-04-20 Processo para obtencao de co2 e de n2 a partir dos gases formados em um motor ou em uma turbina de combustao interna

Country Status (10)

Country Link
US (1) US4797141A (pt)
AR (1) AR242542A1 (pt)
BR (1) BR8801882A (pt)
DE (1) DE3736740A1 (pt)
ES (1) ES2003265A6 (pt)
FR (1) FR2614291B1 (pt)
GB (1) GB2203674B (pt)
IT (1) IT1228265B (pt)
MX (1) MX167940B (pt)
PT (1) PT85833B (pt)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5100635A (en) * 1990-07-31 1992-03-31 The Boc Group, Inc. Carbon dioxide production from combustion exhaust gases with nitrogen and argon by-product recovery
JP2792777B2 (ja) * 1992-01-17 1998-09-03 関西電力株式会社 燃焼排ガス中の炭酸ガスの除去方法
ES2127035B1 (es) * 1992-06-17 1999-11-16 Arribas Nunez Alfonso Procedimiento para aprovechamiento de la energia con enfriamiento y descontaminacion de los gases sulfuricos.
US5233837A (en) * 1992-09-03 1993-08-10 Enerfex, Inc. Process and apparatus for producing liquid carbon dioxide
GB2278113A (en) * 1993-05-22 1994-11-23 Boc Group Plc The production of a carbon dioxide and nitrogen mix from the combustion exhaust gases of a hydrocarbon source
US6085549A (en) * 1998-04-08 2000-07-11 Messer Griesheim Industries, Inc. Membrane process for producing carbon dioxide
US6128919A (en) * 1998-04-08 2000-10-10 Messer Griesheim Industries, Inc. Process for separating natural gas and carbon dioxide
DE10019630C2 (de) * 2000-04-19 2003-05-28 Ruediger Henry Hinz Verfahren und Anlage zur gleichzeitigen Erzeugung von elektrischer Energie, Wärme und Inertgas
NZ514666A (en) * 2001-10-08 2003-01-31 Canterprise Ltd Apparatus for continuous carbon dioxide absorption comprising a reactor containing a carbon dioxide absorbent liquid recycled via a regenerator
ES2192994B1 (es) * 2002-03-22 2005-02-16 Consejo Superior Investig. Cientificas Procedimiento de combustion con separacion integrada de co2 mediante carbonatacion.
JP4745682B2 (ja) * 2005-02-23 2011-08-10 関西電力株式会社 Co2回収装置および方法
US20080145805A1 (en) * 2006-12-14 2008-06-19 Towler Gavin P Process of Using a Fired Heater
CN101497452A (zh) * 2008-01-28 2009-08-05 刘键 用烟道气制备碳酸氢铵的方法及其设备
DE102008039449A1 (de) * 2008-08-25 2010-03-04 Rheinisch-Westfälische Technische Hochschule Aachen Emissionsfreies Karftwerk
US20100326084A1 (en) * 2009-03-04 2010-12-30 Anderson Roger E Methods of oxy-combustion power generation using low heating value fuel
FR2962994A1 (fr) * 2010-07-20 2012-01-27 Air Liquide Procede de production d’un flux riche en azote
US9205357B2 (en) 2012-03-29 2015-12-08 The Boeing Company Carbon dioxide separation system and method
US9156703B2 (en) 2012-03-30 2015-10-13 The Boeing Company System and method for producing carbon dioxide
US9103549B2 (en) 2012-08-23 2015-08-11 The Boeing Company Dual stream system and method for producing carbon dioxide
US9777628B2 (en) 2012-08-23 2017-10-03 The Boeing Company System and method for processing greenhouse gases
US9073001B2 (en) 2013-02-14 2015-07-07 The Boeing Company Monolithic contactor and associated system and method for collecting carbon dioxide

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US984605A (en) * 1909-09-08 1911-02-21 Nitrogen Ges M B H Method of producing nitrogen and carbon dioxid from gaseous products of combustion.
GB191225629A (en) * 1912-01-26 1913-06-12 Cyril Douglas Mccourt Improvements in Process and Apparatus for Making Nitrogen and Carbon Dioxide.
US1150337A (en) * 1913-04-07 1915-08-17 American Nitro Products Company Process of making nitrogen and carbon dioxid.
DE388363C (de) * 1914-09-04 1924-01-12 American Nitro Products Compan Verfahren zur Gewinnung von Kohlensaeure und von Stickstoff aus Verbrennungsgasen
US2593530A (en) * 1947-12-11 1952-04-22 Air Reduction Production of carbon dioxide
US2665190A (en) * 1950-07-28 1954-01-05 Allied Chem & Dye Corp Purification of waste gases containing chlorine by treatment with an alkaline nitrite solution to effect removal of the chlorine constituent therefrom
US3002362A (en) * 1959-09-24 1961-10-03 Liquifreeze Company Inc Natural gas expansion refrigeration system
FR1330141A (fr) * 1960-11-16 1963-06-21 Scient Design Co Procédé de récupération de l'oxygène et de l'azote contenus dans un mélange gazeux
FR1392352A (fr) * 1964-05-08 1965-03-12 Lummus Co Production d'azote pur
US3735601A (en) * 1971-07-16 1973-05-29 J Stannard Low temperature refrigeration system
US3812236A (en) * 1972-06-22 1974-05-21 Standard Oil Co Removal of ammonia and organic impurities from an ammonia plant effluent
DD101298A1 (pt) * 1972-10-20 1973-11-12
US4079117A (en) * 1975-08-11 1978-03-14 Union Carbide Corporation Process for acid gas removal
FR2327814A1 (fr) * 1975-10-15 1977-05-13 Hitachi Ltd Procede pour traiter par catalyse un gaz d'echappement renfermant de l'ammoniac gazeux et de l'oxygene gazeux.
US4184855A (en) * 1977-12-29 1980-01-22 Union Carbide Corporation Process for CO2 removal
US4263263A (en) * 1979-06-04 1981-04-21 Vaseen Vesper A Internal combustion engine-exhaust gases and particulate treatment
US4729879A (en) * 1979-06-07 1988-03-08 Black Robert B Production of nitrogen and carbon dioxide
US4293322A (en) * 1980-04-23 1981-10-06 Helix Technology Corporation Distillative separation of carbon dioxide from hydrogen sulfide
US4364915A (en) * 1981-05-21 1982-12-21 Procon International Inc. Process for recovery of carbon dioxide from flue gas
GB2100471B (en) * 1981-05-28 1985-03-06 British Gas Corp Automatic coi removal system and operation thereof
US4440731A (en) * 1981-09-08 1984-04-03 The Dow Chemical Company Process for removal of carbon dioxide from industrial gases
US4477419A (en) * 1983-03-03 1984-10-16 The Dow Chemical Company Process for the recovery of CO2 from flue gases
US4510124A (en) * 1983-11-09 1985-04-09 Science Applications, Inc. System for recovery of CO2 from flue gases containing SO2
US4624839A (en) * 1983-12-12 1986-11-25 The Dow Chemical Company Process for the recovery of CO2 from flue gases
US4522636A (en) * 1984-02-08 1985-06-11 Kryos Energy Inc. Pipeline gas pressure reduction with refrigeration generation
JPS61130769A (ja) * 1984-11-30 1986-06-18 株式会社日立製作所 低温廃ガスを利用した寒冷発生方法
US4704146A (en) * 1986-07-31 1987-11-03 Kryos Energy Inc. Liquid carbon dioxide recovery from gas mixtures with methane
US4711093A (en) * 1987-02-27 1987-12-08 Kryos Energy Inc. Cogeneration of electricity and refrigeration by work-expanding pipeline gas

Also Published As

Publication number Publication date
FR2614291A1 (fr) 1988-10-28
GB2203674A (en) 1988-10-26
PT85833B (pt) 1994-08-31
MX167940B (es) 1993-04-23
PT85833A (pt) 1989-05-12
ES2003265A6 (es) 1988-10-16
GB2203674B (en) 1991-03-06
US4797141A (en) 1989-01-10
IT1228265B (it) 1991-06-05
GB8717589D0 (en) 1987-09-03
DE3736740A1 (de) 1988-11-17
IT8721273A0 (it) 1987-07-14
FR2614291B1 (fr) 1990-10-12
AR242542A1 (es) 1993-04-30

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Legal Events

Date Code Title Description
FG Letter patent granted
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 20/04/2003

B15K Others concerning applications: alteration of classification

Ipc: B01D 53/75 (2006.01), B01D 53/40 (2006.0