Air purification process

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5980611
SERIAL NO

08937713

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Substantially all of the carbon dioxide is removed from a gas containing up to about 1% by volume carbon dioxide by subjecting the gas to a pressure swing adsorption process using as the adsorbent a single layer of zeolite having a silicon to aluminum atomic ratio in the range of 1.5 to 70. The process is particularly suitable for removing substantially all carbon dioxide and water vapor contained in air prior to subjecting the air to cryogenic distillation.

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First Claim

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Patent Owner(s)

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

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bulow, Martin Basking Ridge, NJ 37 800
Deng, Shuguang Stirling, NJ 14 111
Fitch, Frank Bedminster, NJ 5 125
Gittleman, Craig S North Plainfield, NJ 28 259
Kumar, Ravi Allentown, PA 79 2206
Ojo, Adeola Florence Chatham, NJ 13 184

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Seitetsu Kagaku Co., Ltd. (1)
* 4986835 Process for separating and recovering carbonic acid gas from gas mixture by adsorption 24 1989
 
The BOC Group, Inc. (7)
* 5156657 Process for pre-purification of air for separation 28 1990
* 5202096 Apparatus for low temperature purification of gases 73 1991
* 5232474 Pre-purification of air for separation 63 1991
* 5531808 Removal of carbon dioxide from gas streams 49 1994
* 5587003 Removal of carbon dioxide from gas streams 56 1995
* 5571309 Adsorption process 13 1995
* 5728198 Process and apparatus for gas purification 29 1996
 
AIR PRODUCTS AND CHEMICALS, INC. (6)
* 4529416 Gas separation kinetics in commercial pellets 15 1983
* 4477264 Pressure swing adsorption process for a medical oxygen generator for home use 48 1983
* 4711645 Removal of water and carbon dioxide from atmospheric air 123 1986
* 4857083 Vacuum swing adsorption process with vacuum aided internal rinse 29 1988
* 5395427 Two stage pressure swing adsorption process which utilizes an oxygen selective adsorbent to produce high purity oxygen from a feed air stream 12 1994
* 5656064 Base treated alumina in pressure swing adsorption 24 1995
 
THE BOC GROUP PLC (1)
* 5447558 Purification method and apparatus 18 1994
 
LIFESHIELD SCIENCES LLC (1)
* 2004/0158,312 Braided endoluminal device having tapered filaments 24 2003
 
LINDE AKTIENGESELLSCHAFT (1)
* 5560763 Integrated air separation process 22 1995
 
UOP LLC (2)
* 4775396 Selective adsorption of CO.sub.2 on zeolites 56 1987
* 5013334 Methane purification by pressure swing adsorption 28 1990
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
* 2010/0116,137 REMOVAL OF CARBON DIOXIDE FROM AIR 28 2009
 
INOGEN, INC. (2)
6824590 Use of lithium-containing fau in air separation processes including water and/or carbon dioxide removal 17 2003
* 2003/0106,430 Use of lithium-containing fau in air separation processes including water and/or carbon dioxide removal 0 2003
 
CASALE SA (2)
* 7153344 Process for the preparation and recovery of carbon dioxide from waste gas or fumes produced by combustible oxidation 9 2002
* 2004/0123,737 Process for the preparation and recovery of carbon dioxide from waste gas or fumes produced by combustible oxidation 1 2003
 
AIR PRODUCTS AND CHEMICALS, INC. (4)
7300905 Methods for their manufacture of adsorbent 4 2002
* 2002/0170,436 Adsorbent coating compositions, laminates and adsorber elements comprising such compositions and methods for their manufacture and use 11 2002
7902114 Adsorbent coating compositions, laminates and adsorber elements 3 2007
9108145 Purification of air 5 2013
 
TAIYO NIPPON SANSO CORPORATION (3)
7931736 Pre-purification unit of cryogenic air separation unit, hydrocarbon adsorbent, and method of pre-treating feed air 1 2005
8366806 Pre-purification unit of cryogenic air separation unit, hydrocarbon adsorbent, and method of pre-treating feed air 0 2010
* 2013/0167,720 GAS PURIFICATION METHOD 0 2012
 
L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE (3)
* 6270557 Process for purifying air by adsorption before cryogenic distillation 26 1998
* 6273939 Process for purifying a gas stream of its N2O impurities 19 1999
* 6626980 Mixed matrix membranes incorporating chabazite type molecular sieves 36 2001
 
TOSOH CORPORATION (1)
* 6537348 Method of adsorptive separation of carbon dioxide 11 2001
 
CARBON SINK INC. (18)
8088197 Removal of carbon dioxide from air 22 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
8999279 English Title Not Available 5 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
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
 
GRACO CHILDREN'S PRODUCTS INC. (1)
* 6425937 Process for purifying air by adsorption over a barium-exchanged zeolite 6 2000
 
Kilimanjaro Energy, Inc. (2)
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
* Cited By Examiner