GB2278113A - The production of a carbon dioxide and nitrogen mix from the combustion exhaust gases of a hydrocarbon source - Google Patents

The production of a carbon dioxide and nitrogen mix from the combustion exhaust gases of a hydrocarbon source Download PDF

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Publication number
GB2278113A
GB2278113A GB9310619A GB9310619A GB2278113A GB 2278113 A GB2278113 A GB 2278113A GB 9310619 A GB9310619 A GB 9310619A GB 9310619 A GB9310619 A GB 9310619A GB 2278113 A GB2278113 A GB 2278113A
Authority
GB
United Kingdom
Prior art keywords
carbon dioxide
nitrogen
exhaust gas
rich fraction
adsorption system
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Withdrawn
Application number
GB9310619A
Other versions
GB9310619D0 (en
Inventor
Robert Gilmore Hall
Bruce Robinson
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.)
BOC Group Ltd
Original Assignee
BOC Group Ltd
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 BOC Group Ltd filed Critical BOC Group Ltd
Priority to GB9310619A priority Critical patent/GB2278113A/en
Publication of GB9310619D0 publication Critical patent/GB9310619D0/en
Priority to IE041494A priority patent/IE940414A1/en
Priority to JP6107070A priority patent/JPH0747252A/en
Publication of GB2278113A publication Critical patent/GB2278113A/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C13/00—Apparatus in which combustion takes place in the presence of catalytic material
    • 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
    • B01D53/04—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 stationary adsorbents
    • B01D53/047—Pressure swing adsorption
    • 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
    • B01D53/22—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 diffusion
    • B01D53/229—Integrated processes (Diffusion and at least one other process, e.g. adsorption, absorption)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/10—Mixing gases with gases
    • B01F23/19—Mixing systems, i.e. flow charts or diagrams; Arrangements, e.g. comprising controlling means
    • 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
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/14—Production of inert gas mixtures; Use of inert gases in general
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/006—Layout of treatment plant
    • 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
    • B01D2256/00—Main component in the product gas stream after treatment
    • B01D2256/10—Nitrogen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2256/00—Main component in the product gas stream after treatment
    • B01D2256/22—Carbon dioxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/01—Engine exhaust gases
    • B01D2258/018—Natural gas engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/40001—Methods relating to additional, e.g. intermediate, treatment of process gas
    • 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
    • B01D53/04—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 stationary adsorbents
    • B01D53/0407—Constructional details of adsorbing systems
    • B01D53/0446—Means for feeding or distributing gases
    • 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
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/40—Capture or disposal of greenhouse gases of CO2

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Separation Of Gases By Adsorption (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Devices For Dispensing Beverages (AREA)
  • Treating Waste Gases (AREA)

Abstract

An apparatus (10) for and method of producing of a carbon dioxide and nitrogen mix at the point of use comprises a combuster (12) in which air and a hydrocarbon such as natural gas or propane is mixed and combusted so as to produce a combustion exhaust gas which, after being cooled/condensed at (14) is compressed by compressor (16) purified at (18) to remove unwanted trace contaminants and then passed to primary and secondary separators (20, 22) for separating a carbon dioxide rich fraction and a nitrogen rich fraction therefrom. The two fractions are then recombined in a ratio suitable for use in the dispensing of a particular drink such as beer or lager. <IMAGE>

Description

THE PRODUCTION OF A CARBON DIOXIDE AND NITROGEN MIX FROM THE COMBUSTION EXHAUST GASES OF A HYDROCARBON SOURCE The present invention is directed to a method of and apparatus for producing a carbon dioxide and nitrogen mix from the combustion exhaust gases of a hydrocarbon source. More particularly, the present invention is directed to the production of a gas mix suitable for use in dispensing drinks such as beer and lager and to the production of said gas mix at the source of use.
Drinks such as beer and lager are commonly dispensed under pressure using carbon dioxide and/or carbon dioxide/nitrogen mixtures. The carbon dioxide is typically supplied in cylinders and compressed to high pressures whilst the carbon dioxide/nitrogen mixes may be delivered in mixed form in cylinders at high pressure, or the desired mix may be produced on site. In the latter case, the source of nitrogen may be a cylinder or the nitrogen may be produced on site by membrane or pressure swing adsorption separation of air. On site production offers a number of advantages in terms of cost and convenience but the user of the gas is still dependent on delivered CO2 even if nitrogen is generated at the point of use.
It is an object of the present invention to provide a method of and apparatus for the production of a carbon dioxide and nitrogen mix where both gases can be generated at the point of use and mixed so as to produce a gas mix suitable for use in dispensing a given liquid such as beer or lager.
Accordingly, the present invention provides a method of producing a carbon dioxide and nitrogen mix from the combustion exhaust gases of a hydrocarbon source, the method comprising the steps of: (a) burning the hydrocarbon to generate an exhaust gas containing carbon dioxide and nitrogen with residual oxygen, hydrocarbons and impurities; (b) compressing the exhaust gas; (c) purifying the exhaust gas to remove trace contaminants; (d) separating the exhaust gas to produce a carbon dioxide rich fraction and a nitrogen rich fraction; (e) recombining the carbon dioxide rich fraction with the nitrogen rich fraction in a given ratio, thereby to provide a carbon dioxide/nitrogen mixture suitable for use in dispensing a liquid.
In another embodiment the invention is directed to an apparatus for producing a carbon dioxide and nitrogen mix from a hydrocarbon source, the apparatus comprising: (a) a combuster for combusting the hydrocarbon to generate an exhaust gas containing carbon dioxide and nitrogen with residual oxygen, hydrocarbons and impurities; (b) compression means, for compressing the exhaust gas; (c) purifying means for removing trace contaminants; (d) separation means, for separating the exhaust gas to produce a carbon dioxide rich fraction and a nitrogen rich fraction; (e) mixing means for recombining the carbon dioxide rich fraction with the nitrogen rich fraction in a given ratio, thereby to provide a carbon dioxide/nitrogen mixture suitable for use in dispensing a liquid.
It will be appreciated that adoption of the above mentioned method and apparatus will enable the desired gas mix to be produced at the point of use thereby removing the users dependency on the delivery of bottled carbon dioxide and/or nitrogen. it will also be appreciated that the desired mix may be generated as and when necessary thereby enabling the user to more easily accommodate changes in demand for the mixed gas.
The present invention will now be more particularly described by way of example only with reference to the accompanying figures, in which: Figure 1 is a schematic process flow diagram illustrating the steps involved in producing a carbon dioxide/nitrogen mix according to the present invention.
Figure 2 is a mass balance for propane combustion with 10% excess air.
Figure 3 is a second schematic process flow diagram for use in conjunction with Figure 2.
Referring now to Figure 1, an apparatus 10 for producing a carbon dioxide and nitrogen mix from the combustion gases of a hydrocarbon source includes a combuster 12 which is advantageously, of the catalytic kind having precious metal elements containing platinum and/or palladium. An optional aftercooler/condenser 14 may be provided downstream of the combuster 12 for condensing and cooling any exhaust gases produced during combustion. A compressor 16 compressing to approximately 10 bar is positioned for compressing the exhaust gases prior to said gases being passed to a purifying means 18 in the form of, for example, an activated carbon bed. Primary and secondary separators 20,22 are provided for separating nitrogen and carbon dioxide respectively from the exhaust gas.
A gas mixer 24 is provided for mixing the nitrogen and carbon dioxide in the desired ratios which are discussed in detail below. The primary and secondary adsorbers 20,22 may be of the membrane or pressure swing adsorption type. An additional compressor 26 may be provided to compress the carbon dioxide prior to entering the peroduct mixer 24.
In operation, air and fuel gas such as for example natural gas or propane are introduced into the combuster 12 where combustion takes place to produce the required combustion exhaust gas containing carbon dioxide and nitrogen with residual oxygen, hydrocarbons and impurities. The exhaust gases are then passed through the aftercooler/condenser (if provided) prior to being compressed to approximately 10 bar by compressor 16. The adsorber bed 18 acts to purify the exhaust gas by removing trace elements in a manner well known to those skilled in the art and therefore not described in detail herein. Purified exhaust gas is passed through the first separator 20 which acts to separate out nitrogen therefrom. The remaining exhaust gases namely oxygen and carbon dioxide are passed to second . second separator which acts to separate carbon dioxide and oxygen from the remaining exhaust gas. The oxygen in this application is not required and is vented to atmosphere. The separated nitrogen and carbon dioxide are passed to mixer 24 for mixing in the required ratios. Waste nitrogen may be used to purge the second separator as and when desired.
Such purging would assist in reducing the oxygen content in the carbon dioxide and ultimately, make a very low oxygen content mixed gas possible. A 0,5 percent oxygen content in the carbon dioxide and/or nitrogen rich fraction is achievable with the above mentioned arrangement.
The ratios of the final mixture of carbon dioxide to nitrogen will depend upon the particular use for which the gas is put. However, typical examples include a 30/70 ratio for use when dispensing stouts and a 60/40 ratio for dispensing lagers. It will however be appreciated that the above mentioned apparatus may be used for producing a gas mixture of any desired ratio.
Figures 2 and 3 illustrate how the mass balance for propane combustion with 10% excess air would change throughout the production process. At point F in Figure 3, for example, the gas composition is 2% oxygen, 86% nitrogen and 12% carbon dioxide, as listed at F in Figure 2.

Claims (25)

  1. t A method of producing a carbon dioxide and nitrogen mix from the combustion exhaust gases of a hydrocarbon source, the method comprising the steps of: (a) burning the hydrocarbon to generate an exhaust gas containing carbon dioxide and nitrogen with residual oxygen, and impurities; (b) compressing the exhaust gas; (c) purifying the exhaust gas to remove trace contaminants; (d) separating the exhaust gas to produce a carbon dioxide rich fraction and a nitrogen rich fraction; (e) recombining the carbon dioxide rich fraction with the nitrogen rich fraction in a given ratio, thereby to provide a carbon dioxide/nitrogen mixture suitable for use in dispensing a liquid.
  2. 2. A method as claimed in claim 1 including the additional step of cooling/condensing the exhaust gases prior to the compression thereof.
  3. 3. A method as claimed in claim 1 or claim 2 in which the compression step takes place prior to separation of said exhaust gas into said carbon dioxide and nitrogen rich fractions.
  4. 4. A method as claimed in any one of the preceding claims in which the hydrocarbon is burnt in a catalytic combustion unit.
  5. 5. A method as claimed in any one of claims 1 to 3 in which the hydrocarbon is burnt in a catalytic combustion unit including a precious metal element containing platinum and/or palladium.
  6. 6. A method as claimed in anyone of the preceding claims in which the exhaust gas is purified to remove any trace elements by passing it through an activated carbon bed.
  7. 7. A method as claimed in any one of the preceding claims in which the nitrogen is separated from the exhaust gas in a first membrane or pressure swing adsorption system.
  8. 8. A method as claimed in any one of the preceding claims in which the carbon dioxide is separated from the exhaust gas in a second membrane or pressure swing adsorption system.
  9. 9. A method as claimed in claim 8 including the step of feeding waste gas from the first adsorption system to the second adsorption system.
  10. 10. A method as claimed in any one of claims 7 to 9 including the step of using excess nitrogen for purging the second adsorption system when necessary.
  11. 11. A method as claimed in any one of the preceding claims in which the carbon dioxide fraction and/or the nitrogen fraction are/is produced with an oxygen content of 0.5 percent or less.
  12. 12. A method as claimed in any one of the preceding claims in which the given ratio of carbon dioxide to nitrogen is 30 to 70.
  13. 13. A method as claimed in any one of the preceding claims in which the given ratio of carbon dioxide to nitrogen is 60 to 40.
  14. 14. A method as claimed in any one of the preceding claims in which the exhaust gas is produced by burning natural gas or propane.
  15. 15. A method substantially as herein described with reference to the accompanying drawings.
  16. 16. An apparatus for producing a carbon dioxide and nitrogen mix from a hydrocarbon source, the apparatus comprising: (a) a combuster for combusting the hydrocarbon to generate an exhaust gas containing carbon dioxide and nitrogen with residual oxygen, hydrocarbons and impurities; (b) compression means, for compressing the exhaust gas; (c) purifying means for removing trace contaminants; (d) separation means, for separating the exhaust gas to produce a carbon dioxide rich fraction and a nitrogen rich fraction; (e) mixing means for recombining the carbon dioxide rich fraction with the nitrogen rich fraction in a given ratio, thereby to provide a carbon dioxide/nitrogen mixture suitable for use in dispensing a liquid.
  17. 17. An apparatus as claimed in claimed in claim 16 including cooling/condensing means for cooling/condensing the exhaust gases prior to the compression thereof.
  18. 18. An apparatus as claimed in claim 16 or claim 17 in which the compressor is positioned upstream of the separation means.
  19. 19. An apparatus as claimed in any one of claims 16 to 18 in which the combuster comprises a catalytic combustion unit.
  20. 20. An apparatus as claimed in claim 19 in which the combustion unit includes a precious metal element containing platinum and/or palladium.
  21. 21. An apparatus as claimed in any one of claims 16 to 20 in which the purifying means comprises an activated carbon bed through which the exhaust gas is passed.
  22. 22. An apparatus as claimed in any one of claims 16 to 21 including a first membrane or pressure swing adsorption system for separating nitrogen from the exhaust gas.
  23. 23. An apparatus as claimed in any one of claims 16 to 22 including a second membrane or pressure swing adsorption system for separating carbon dioxide from the exhaust gas.
  24. 24. An apparatus as claimed in claim 23 in which waste gas from the first adsorption system is fed for the second adsorption system.
  25. 25. An apparatus substantially as herein described with reference to an as illustrated in figures 1 to 3 of the accompanying drawings.
GB9310619A 1993-05-22 1993-05-22 The production of a carbon dioxide and nitrogen mix from the combustion exhaust gases of a hydrocarbon source Withdrawn GB2278113A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB9310619A GB2278113A (en) 1993-05-22 1993-05-22 The production of a carbon dioxide and nitrogen mix from the combustion exhaust gases of a hydrocarbon source
IE041494A IE940414A1 (en) 1993-05-22 1994-05-20 The production of a carbon dioxide and nitrogen mix from the¹combustion exhaust gases of a hydrocarbon source
JP6107070A JPH0747252A (en) 1993-05-22 1994-05-20 Method and device for producing mixture of carbon dioxide and nitrogen from combustion exhaust gas of hydrocarbon source

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9310619A GB2278113A (en) 1993-05-22 1993-05-22 The production of a carbon dioxide and nitrogen mix from the combustion exhaust gases of a hydrocarbon source

Publications (2)

Publication Number Publication Date
GB9310619D0 GB9310619D0 (en) 1993-07-07
GB2278113A true GB2278113A (en) 1994-11-23

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GB (1) GB2278113A (en)
IE (1) IE940414A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0858826A2 (en) * 1997-02-14 1998-08-19 Praxair Technology, Inc. Air separation system and method
EP0888804A2 (en) * 1997-07-02 1999-01-07 The BOC Group plc Controlling atmospheres in containers
WO2002070951A1 (en) * 2001-03-06 2002-09-12 Innovationen Zur Verbrennungstechnik Gmbh Heating installation and method for operating a heating installation
WO2010001038A2 (en) * 2008-07-03 2010-01-07 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Dust-laden wet gas treatment
FR2962994A1 (en) * 2010-07-20 2012-01-27 Air Liquide Making flow comprising nitrogen comprises combusting hydrocarbon fuel, capturing carbon dioxide in smoke flow having nitrogen and carbon dioxide and separating the first residual flow into flow comprising nitrogen and second residual flow
CN106000139A (en) * 2016-05-16 2016-10-12 中国人民解放军兰州军区乌鲁木齐总医院 Hydrogen containing therapeutic mixed gas

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1133356A (en) * 1997-07-25 1999-02-09 Osaka Oxygen Ind Ltd Air cleaner
US7425231B2 (en) * 2003-08-06 2008-09-16 Air Products And Chemicals, Inc. Feed gas contaminant removal in ion transport membrane systems
EP3655133B1 (en) * 2017-07-19 2024-07-10 ExxonMobil Technology and Engineering Company Use of type v adsorbent and gas concentration for co2 adsorption and capture

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2203674A (en) * 1987-04-21 1988-10-26 Espan Carburos Metal Co2/n2 production process
EP0469781A2 (en) * 1990-07-31 1992-02-05 The Boc Group, Inc. Separation of carbon dioxide and nitrogen from combustion exhaust gas with nitrogen and argon by-product recovery

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2203674A (en) * 1987-04-21 1988-10-26 Espan Carburos Metal Co2/n2 production process
EP0469781A2 (en) * 1990-07-31 1992-02-05 The Boc Group, Inc. Separation of carbon dioxide and nitrogen from combustion exhaust gas with nitrogen and argon by-product recovery

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0858826A2 (en) * 1997-02-14 1998-08-19 Praxair Technology, Inc. Air separation system and method
EP0858826A3 (en) * 1997-02-14 1998-09-09 Praxair Technology, Inc. Air separation system and method
EP0888804A2 (en) * 1997-07-02 1999-01-07 The BOC Group plc Controlling atmospheres in containers
EP0888804A3 (en) * 1997-07-02 1999-05-06 The BOC Group plc Controlling atmospheres in containers
WO2002070951A1 (en) * 2001-03-06 2002-09-12 Innovationen Zur Verbrennungstechnik Gmbh Heating installation and method for operating a heating installation
WO2010001038A2 (en) * 2008-07-03 2010-01-07 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Dust-laden wet gas treatment
FR2933313A1 (en) * 2008-07-03 2010-01-08 Air Liquide TREATMENT OF WET GAS CONTAINING DUST
WO2010001038A3 (en) * 2008-07-03 2010-02-25 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Dust-laden wet gas treatment
CN102076398A (en) * 2008-07-03 2011-05-25 乔治洛德方法研究和开发液化空气有限公司 Dust-laden wet gas treatment
US8388734B2 (en) 2008-07-03 2013-03-05 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Dust-laden wet gas treatment
FR2962994A1 (en) * 2010-07-20 2012-01-27 Air Liquide Making flow comprising nitrogen comprises combusting hydrocarbon fuel, capturing carbon dioxide in smoke flow having nitrogen and carbon dioxide and separating the first residual flow into flow comprising nitrogen and second residual flow
CN106000139A (en) * 2016-05-16 2016-10-12 中国人民解放军兰州军区乌鲁木齐总医院 Hydrogen containing therapeutic mixed gas

Also Published As

Publication number Publication date
JPH0747252A (en) 1995-02-21
GB9310619D0 (en) 1993-07-07
IE940414A1 (en) 1994-11-30

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