The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 05, 2013
Filed:
Nov. 01, 2011
Gary T. Rochelle, Austin, TX (US);
John Cullinane, Houston, TX (US);
Gary T. Rochelle, Austin, TX (US);
John Cullinane, Houston, TX (US);
The Board of Regents of the University of Texas System, Austin, TX (US);
Abstract
Novel solvents and methods of use for the removal of COfrom flue gas, natural gas, hydrogen gas, synthesis gas, and other process and waste gas streams are provided. The solvent contains an alkali salt such as potassium carbonate and a polyamine such as piperazine (PZ) where the polyamine concentration is at least 1.5 equivalents/Kg HO and the alkali salt concentration is at least 0.5 equivalents/Kg HO. The preferred alkali salt/polyamine ratio is from approximately 1:2 to 2:1, and no additional alcohol is required for solubilizing the PZ. This chemical solvent and method of use provides efficient and effective removal of COfrom gaseous streams and other sources.