Air purification process

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5914455
SERIAL NO

08940408

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An air prepurification process which includes, as a first step, a pressure swing adsorption process in which the air is passed through a bed of adsorbent which contains activated alumina, thereby effecting removal of substantially all moisture and most carbon dioxide from the feed air and as a second step, a temperature swing adsorption process in which the dried feed air is passed through a bed of carbon dioxide-selective adsorbent, thereby removing substantially all of the carbon dioxide remaining in the feed air. The feed air may be passed through beds of hydrogen oxidation and carbon monoxide oxidation catalysts between the first and second steps to convert any hydrogen and carbon monoxide in the feed air to water vapor and carbon dioxide, respectively, these components being removed from the feed air during the second step. The feed air may be optionally passed through a layer of a hydrocarbon selective adsorbent between the first and second steps to remove hydrocarbons such as ethylene, propylene and propane.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
The BOC Group, Inc.NEW PROVIDENCE, NJ133

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jain, Ravi Bridgewater, NJ 144 2420
Tseng, James K Berkeley Heights, NJ 10 194

Cited Art Landscape

Patent Info (Count) # Cites Year
 
The BOC Group, Inc. (4)
* 5110569 Low temperature purification of gases 37 1990
* 5232474 Pre-purification of air for separation 63 1991
* 5531808 Removal of carbon dioxide from gas streams 49 1994
* 5728198 Process and apparatus for gas purification 29 1996
 
AIR PRODUCTS AND CHEMICALS, INC. (7)
* 4472178 Adsorptive process for the removal of carbon dioxide from a gas 58 1983
* 4711645 Removal of water and carbon dioxide from atmospheric air 123 1986
* 4702749 Technique for surface oxidation of activated carbon 10 1986
* 4770676 Recovery of methane from land fill gas 77 1987
* 5268023 Nitrogen adsorption with highly Li exchanged X-zeolites with low Si/Al ratio 49 1992
* 5486227 Integrated process for purifying and liquefying a feed gas mixture with respect to its less strongly adsorbed component of lower volatility 25 1994
* 5614000 Purification of gases using solid adsorbents 29 1995
 
THE BOC GROUP PLC (1)
* 5451248 Storage and transportation of goods under controlled atmospheres 43 1994
 
PRAXAIR TECHNOLOGY, INC. (1)
* 5674311 Adsorption process and system using multilayer adsorbent beds 40 1995
 
UOP LLC (1)
* 5089034 Process for purifying natural gas 40 1990
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (9)
* 2009/0274,600 PROCESS FOR GAS PURIFICATION 8 2009
* 2010/0116,137 REMOVAL OF CARBON DIOXIDE FROM AIR 28 2009
* 2010/0105,126 METHOD AND APPARATUS FOR EXTRACTING CARBON DIOXIDE FROM AIR 39 2009
* 2010/0251,892 METHODS AND SYSTEMS FOR HELIUM RECOVERY 0 2010
* 2011/0079,149 METHOD AND APPARATUS FOR EXTRACTING CARBON DIOXIDE FROM AIR 18 2010
* 2011/0027,143 METHOD AND APPARATUS FOR EXTRACTING CARBON DIOXIDE FROM AIR 18 2010
* 2011/0056,382 LAMINAR SCRUBBER APPARATUS FOR CAPTURING CARBON DIOXIDE FROM AIR AND METHODS OF USE 28 2010
* 9427693 Process for vapor emission control 0 2014
* 2016/0332,105 Apparatus and System for Swing Adsorption Processes Related Thereto 0 2016
 
The BOC Group, Inc. (9)
* 6391092 Thermal swing adsorption process for the removal of dinitrogen oxide, hydrocarbons and other trace impurities from air 11 1999
* 6358302 Purification of gases using multi-composite adsorbent 11 1999
* 6511640 Purification of gases 10 2000
* 6432171 Thermal swing adsorption process 13 2000
* 6409800 Temperature swing adsorption process 13 2000
* 6503297 Adsorption processes 17 2001
* 7556671 System and method for purifying a gas 0 2006
* 2007/0028,766 Method for removing impurities from a gas 3 2006
* 2007/0028,773 System and method for purifying a gas 3 2006
 
KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.) (1)
* 2009/0223,371 PSA apparatus for producing high-purity hydrogen gas 5 2009
 
L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE (6)
* 6273939 Process for purifying a gas stream of its N2O impurities 19 1999
* 6379430 Use of an activated alumina for removing the CO2 from a gas 14 2000
* 6402814 Process for the treatment of a gas by temperature swing adsorption 6 2000
* 8252089 Method and device for drying a gas flow rich in carbon dioxide 0 2008
* 2010/0288,121 Method And Device For Drying A Gas Flow Rich In Carbon Dioxide 0 2008
* 2012/0227,583 METHOD FOR PURIFYING A GAS FLOW IMPLEMENTING A CONTACTOR HAVING PARALLEL PASSAGES WHILE MAINTAINING THE PERFORMANCE THEREOF 1 2010
 
TOSOH CORPORATION (1)
6537348 Method of adsorptive separation of carbon dioxide 11 2001
 
Kilimanjaro Energy, Inc. (6)
* 2009/0232,861 EXTRACTION AND SEQUESTRATION OF CARBON DIOXIDE 88 2009
7833328 Laminar scrubber apparatus for capturing carbon dioxide from air and methods of use 31 2009
* 2009/0320,688 Laminar Scrubber Apparatus for Capturing Carbon Dioxide From Air and Methods of Use 10 2009
* 2011/0081,709 METHOD AND APPARATUS FOR EXTRACTING CARBON DIOXIDE FROM AIR 28 2010
* 2011/0033,358 METHOD AND APPARATUS FOR EXTRACTING CARBON DIOXIDE FROM AIR 28 2010
* 2011/0027,157 METHOD AND APPARATUS FOR EXTRACTING CARBON DIOXIDE FROM AIR 28 2010
 
Kobe Steel, Ltd. (1)
* 7892328 PSA apparatus for producing high-purity hydrogen gas 4 2009
 
MICROVAST POWER SYSTEMS CO., LTD. (1)
* 2010/0135,895 Process for Purifying HBr in Hydrocarbons 0 2008
 
NIPPON SANSO CORPORATION (1)
* 6471749 Gas purification method 4 2000
 
UOP LLC (1)
7799117 Gas treatment process by temperature swing adsorption 3 2006
 
SUMITOMO SEIKA CHEMICALS CO., LTD. (1)
* 2004/0069,143 Method and device for separating object gas 2 2003
 
UNITED MICROELECTRONICS CORP. (1)
* 2008/0173,353 GAS SUPPLY PIPING SYSTEM AND METHOD FOR REPLACING PURIFIER 1 2007
 
AIR PRODUCTS AND CHEMICALS, INC. (10)
* 6106593 Purification of air 46 1998
* 6093379 Purification of gases 11 1998
* 6302943 Optimum adsorbents for H2 recovery by pressure and vacuum swing absorption 16 1999
* 6514318 Multistage system for separating gas by adsorption 52 2001
* 6599347 Process for treating a feed gas 8 2002
* 6719827 Process for nitrous oxide removal 5 2002
* 6723155 Purification of gas streams 6 2002
7413595 Control scheme for hybrid PSA/TSA systems 3 2005
* 2006/0225,569 Control scheme for hybrid PSA/TSA systems 10 2005
8012446 Recycle TSA regen gas to boiler for oxyfuel operations 14 2010
 
SAES PURE GAS, INC. (3)
* 2003/0143,129 Air purification system and method for maintaining nitrogen and oxygen ratios with regenerative purification units 4 2002
* 7449054 Air purification system with regenerative purification units 2 2005
* 2005/0287,050 Air purification system with regenerative purification units 3 2005
 
TAIYO NIPPON SANSO CORPORATION (3)
* 9651302 Purification method and purification apparatus for feed air in cryogenic air separation 0 2006
* 8690990 Method of purifying air 1 2010
* 2012/0011,887 METHOD OF PURIFYING AIR 2 2010
 
ARKEMA FRANCE (3)
* 7608134 Decarbonating gas streams using zeolite adsorbents 3 1999
7309378 Syngas purification process 6 2006
* 2006/0117,952 Syngas purification process 4 2006
 
CARBON SINK INC. (22)
8088197 Removal of carbon dioxide from air 22 2006
* 2009/0294,366 REMOVAL OF CARBON DIOXIDE FROM AIR 59 2006
7993432 Air collector with functionalized ion exchange membrane for capturing ambient CO.sub.2 34 2007
* 2007/0217,982 AIR COLLECTOR WITH FUNCTIONALIZED ION EXCHANGE MEMBRANE FOR CAPTURING AMBIENT CO2 21 2007
8715393 ) from air 9 2008
8133305 Removal of carbon dioxide from air 26 2008
* 2009/0120,288 REMOVAL OF CARBON DIOXIDE FROM AIR 48 2008
8262774 English Title Not Available 5 2008
* 2009/0130,321 AIR COLLECTOR WITH FUNCTIONALIZED ION EXCHANGE MEMBRANE FOR CAPTURING AMBIENT CO2 16 2008
8999279 English Title Not Available 5 2009
* 2011/0189,075 LAMINAR FLOW AIR COLLECTOR WITH SOLID SORBENT MATERIALS FOR CAPTURING AMBIENT CO2 36 2009
8337589 Method and apparatus for extracting carbon dioxide from air 5 2010
8273160 Method and apparatus for extracting carbon dioxide from air 7 2010
8083836 Method and apparatus for extracting carbon dioxide from air 25 2010
* 2011/0081,712 METHOD AND APPARATUS FOR EXTRACTING CARBON DIOXIDE FROM AIR 26 2010
8246723 English Title Not Available 4 2011
8221527 English Title Not Available 8 2011
9205372 English Title Not Available 2 2012
9266051 Removal of carbon dioxide from air 2 2013
9616375 Capture of carbon dioxide (CO2) from air 0 2014
9266052 Method and apparatus for extracting carbon dioxide from air 2 2014
9527747 Extraction and sequestration of carbon dioxide 0 2014
 
MATHESON TRI-GAS, INC. (2)
* 7101415 Methods for regenerating process gas purifier materials 10 2003
* 2004/0123,736 Methods for regenerating process gas purifier materials 17 2003
 
VICI METRONICS, INC. (1)
* 6074459 Ultra pure gases: removal of halocarbons, fluorocarbons, and sulfur compounds from gas streams 26 1999
 
LINDE AKTIENGESELLSCHAFT (1)
* 2015/0375,158 INCREASED ONSTREAM TIME FOR CRYOGENIC SEPARATION PROCESSES 0 2014
 
GLOBAL RESEARCH TECHNOLOGIES, LLC (1)
* 2006/0051,274 Removal of carbon dioxide from air 93 2005
 
PRAXAIR TECHNOLOGY, INC. (5)
* 6475265 Pressure swing adsorption method for production of an oxygen-enriched gas 32 1998
* 2005/0252,374 Adsorbent bed and process for removal of propane from feed streams 3 2004
* 7780764 Methods and systems for helium recovery 13 2008
* 2009/0320,679 METHODS AND SYSTEMS FOR HELIUM RECOVERY 3 2008
8268047 Methods and systems for helium recovery 2 2010
 
UOP LLC (1)
8574348 Process for purifying a gas in a temperature swing adsorption unit 0 2012
 
CHENGDU TIANLI CHEMICAL ENGINEERING TECHNOLOGY CO., LTD. (2)
* 8128734 Two stage pressure swing adsorption process for producing enriched-oxygen 6 2005
* 7645325 Oxygen production process using three-stage pressure swing adsorption plants 1 2005
* Cited By Examiner