Removal of corrosive contaminants from alkanolamine absorbent process

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6334886
SERIAL NO

09569732

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A process is provided for removing CO.sub.2 and/or H.sub.2 S from a gas mixture containing as impurities CO.sub.2 and/or H.sub.2 S and at least one other impurity selected from the group consisting of a cyanide and ammonia. The process includes contacting at least a portion of the reflux stream from the overhead vapor from a stripping column of an acid gas removal solvent (i.e., alkanolamine) treatment plant with an anion exchange resin to remove corrosive impurities. The ion-exchanged reflux stream is then recycled to the top of the stripping column or into the bulk circulating acid gas removal solvent (i.e., alkanolamine) passing from the bottom of the stripping column.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddressTotal Patents
AIR PRODUCTS AND CHEMICALS, INC.ALLENTOWN, PA781

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Barnes, Jr David Richard Laurys Station, PA 3 44
Bixler, Arthur Daniel Slatington, PA 2 54

Cited Art Landscape

Patent Info (Count) # Cites Year
 
CAPITAL CONTROLS, CO., INC. (1)
5277822 Extraction of thermally stable contaminants from stack gas scrubbing amines 7 1992
 
Mobil Oil Corporation (8)
4795565 Clean up of ethanolamine to improve performance and control corrosion of ethanolamine units 19 1987
* 5137702 Regeneration of used alkanolamine solutions 8 1990
* 5108551 Reclamation of alkanolamine solutions 7 1990
* 5292493 Clean up of ethanolamine solution by treating with weak ion exchange resins 5 1991
* 5268155 Clean up of ethanolamine to improve performance and control corrosion of ethanolamine units 3 1991
* 5846503 Process for rejuvenating used alkanolamaine solutions 6 1992
* 5393505 Process for increasing the acid gas absorption capacity of contaminated alkanolamine solutions 7 1993
* 6245128 Process for the reclamation of spent alkanolamine solution 7 1999
 
FLUOR DANIEL, INC. (1)
4477419 Process for the recovery of CO.sub.2 from flue gases 34 1983
 
CONOCO INC. (4)
4970344 Reactivation of spent alkanolamine 18 1987
5006258 Regeneration of acidic cationic exchange resin used in the reactivation of spent alkanolamine 21 1989
* 5045291 Reactivation of spent alkanolamine 11 1990
* 5190662 Removal of iron sulfide particles from alkanolamine solutions 7 1991
 
SNAMPROGETTI S.P.A. (1)
4758311 Method for avoiding the corrosion of the strippers in the urea manufacturing plants 3 1987
 
MPR Services (2)
5788864 Amine heat stable salt removal from type II anion exchange resin 6 1996
* 6071484 Process for treating gas with ultra-lean amine 28 1997
 
LINDE AKTIENGESELLSCHAFT (1)
4999113 Selective separation of thiocyanate ions from a scrubbing medium 4 1989
 
KRUPP KOPPERS GMBH (1)
* 5607594 Process for purifying an aqueous methyldiethanolamine solution 6 1995
 
CONOCOPHILLIPS COMPANY (2)
5162084 Process for monitoring and controlling an alkanolamine reaction process 12 1991
* 5368818 Monitoring and control system for selective regeneration of alkanolamine from cation ion exchange resin with sodium hydroxide 9 1993
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (6)
* 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
* 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
* 2011/0108,421 ELECTROCHEMICAL METHODS AND PROCESSES FOR CARBON DIOXIDE RECOVERY FROM ALKALINE SOLVENTS FOR CARBON DIOXIDE CAPTURE FROM AIR 24 2010
* 2011/0056,382 LAMINAR SCRUBBER APPARATUS FOR CAPTURING CARBON DIOXIDE FROM AIR AND METHODS OF USE 28 2010
 
GENERAL ELECTRIC COMPANY (2)
* 8591631 Method and apparatus to produce synthetic gas 1 2007
* 2009/0031,630 METHOD AND APPARATUS TO PRODUCE SYNTHETIC GAS 5 2007
 
HTC Sweden AB (1)
* 2011/0207,383 METHODS AND TOOL FOR MAINTENANCE OF HARD SURFACES, AND A METHOD FOR MANUFACTURING SUCH A TOOL 0 2011
 
Cansolv Technologies Inc. (5)
7776296 Regeneration of ion exchangers that are used for salt removal from acid gas capture plants 18 2006
8097068 Method for treating a diamine absorbent stream 0 2008
* 2010/0108,610 Method for Treating a Diamine Absorbent Stream 0 2008
8063112 Process for the regeneration of an ion exchange resin using sulfurous acid 0 2008
* 2010/0144,908 PROCESS FOR THE REGENERATION OF AN ION EXCHANGE RESIN USING SULFUROUS ACID 0 2008
 
CARBON SINK INC. (26)
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
7708806 Method and apparatus for extracting carbon dioxide from air 37 2007
* 2008/0087,165 METHOD AND APPARATUS FOR EXTRACTING CARBON DIOXIDE FROM AIR 97 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
* 2011/0079,146 METHOD AND APPARATUS FOR EXTRACTING CARBON DIOXIDE FROM AIR 26 2010
* 2011/0185,897 REMOVAL OF CARBON DIOXIDE FROM AIR 25 2011
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
 
Kilimanjaro Energy, Inc. (12)
* 2010/0095,842 REMOVAL OF CARBON DIOXIDE FROM AIR 29 2007
* 2009/0232,861 EXTRACTION AND SEQUESTRATION OF CARBON DIOXIDE 88 2009
* 2011/0206,588 METHOD AND APPARATUS FOR REMOVING AMMONIA FROM A GAS STREAM 24 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
* 2011/0083,554 METHOD AND APPARATUS FOR EXTRACTING CARBON DIOXIDE FROM AIR 28 2010
* 2011/0081,709 METHOD AND APPARATUS FOR EXTRACTING CARBON DIOXIDE FROM AIR 28 2010
* 2011/0079,144 METHOD AND APPARATUS FOR EXTRACTING CARBON DIOXIDE FROM AIR 29 2010
* 2011/0081,710 METHOD AND APPARATUS FOR EXTRACTING CARBON DIOXIDE FROM AIR 30 2010
* 2011/0033,357 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
 
IFP (2)
* 7419646 Method of deacidizing a gas with a fractional regeneration absorbent solution 20 2005
* 2006/0104,877 Method of deacidizing a gas with a fractional regeneration absorbent solution 19 2005
 
GLOBAL RESEARCH TECHNOLOGIES, LLC (1)
* 2006/0051,274 Removal of carbon dioxide from air 93 2005
* Cited By Examiner