skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: System and process for capture of acid gasses at elevated pressure from gaseous process streams

Patent ·
OSTI ID:1322106
; ; ; ; ;

A system, method, and material that enables the pressure-activated reversible chemical capture of acid gasses such as CO.sub.2 from gas volumes such as streams, flows or any other volume. Once the acid gas is chemically captured, the resulting product typically a zwitterionic salt, can be subjected to a reduced pressure whereupon the resulting product will release the captures acid gas and the capture material will be regenerated. The invention includes this process as well as the materials and systems for carrying out and enabling this process.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-76RL01830
Assignee:
BATTELLE MEMORIAL INSTITUTE (Richland, WA)
Patent Number(s):
9,433,892
Application Number:
14/516,900
OSTI ID:
1322106
Resource Relation:
Patent File Date: 2014 Oct 17
Country of Publication:
United States
Language:
English

References (30)

Recovering sulfur from gas streams containing hydrogen sulfide patent September 1978
Using solvents for acidic gas removal patent December 1980
Process of selective separation of hydrogen sulfide from gaseous mixtures containing also carbon dioxide patent October 1985
Process for nitrogen oxides reduction and minimization of the production of other pollutants patent May 1991
Supercritical fluids as diluents in combustion of liquid fuels and waste materials patent December 1992
Method for removing carbon dioxide from combustion exhaust gas patent March 2000
Method of decarbonating a combustion fume with extraction of the solvent contained in the purified fume patent December 2008
Capture and release of mixed acid gasses with binding organic liquids patent September 2010
Acid gas disposal method patent-application March 2003
Process for removal of nitrogen containing contaminants from gas oil feedstreams patent-application June 2004
Antibacterial Agents patent-application May 2005
Heterocyclic Compound Having Oxime Group patent-application October 2005
Cyclic Amine Derivatives and Methods of Use patent-application October 2005
Arylamine Substituted Bicyclic Heteroaromatic Compounds as p38 Kinase Inhibitors patent-application January 2006
Nitric Oxide Donors and Uses Thereof patent-application January 2007
Imidazolium-Methyl Sulfites for Use as Starting Compounds for Producing Ionic Liquids patent-application November 2007
Switchable solvents and methods of use thereof patent-application March 2008
Functionalized Ionic Liquids, and Methods of Use Thereof patent-application May 2008
Reversibly Switchable Surfactants and Methods of Use Thereof patent-application August 2008
Capture and Release of Mixed Acid Gasses with Binding Organic Liquids patent-application May 2009
Capture and Release of Acid-Gasses with Acid-Gas Binding Organic Compounds patent-application September 2009
Desulfurization of Flue Gas: SO2 Absorption by an Ionic Liquid journal April 2004
CO2 -binding organic liquids (CO2 BOLs) for post-combustion CO2 capture journal February 2009
Reversible Uptake of COS, CS2, and SO2: Ionic Liquids with O-Alkylxanthate, O-Alkylthiocarbonyl, and O-Alkylsulfite Anions journal August 2009
Green chemistry: Reversible nonpolar-to-polar solvent journal August 2005
Measurement of SO 2 Solubility in Ionic Liquids journal August 2006
Switchable Surfactants journal August 2006
Tuning ionic liquids for high gas solubility and reversible gas sorption journal January 2008
Shielding of Ionic Interactions by Sulfur Dioxide in an Ionic Liquid journal May 2008
Hydroxyl Ammonium Ionic Liquids:  Synthesis, Properties, and Solubility of SO 2 journal March 2007

Similar Records

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY