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:
Oct. 09, 2012
Filed:
Jul. 08, 2010
Francis Peter Petrocelli, Allentown, PA (US);
Kevin Boyle Fogash, Wescosville, PA (US);
Vincent White, Ashtead, GB;
Francis Peter Petrocelli, Allentown, PA (US);
Kevin Boyle Fogash, Wescosville, PA (US);
Vincent White, Ashtead, GB;
Air Products and Chemicals, Inc., Allentown, PA (US);
Abstract
Sulfur dioxide (SO) may be removed from carbon dioxide feed gas by contacting the carbon dioxide at an elevated temperature and an elevated pressure with a catalyst for oxidizing SO, in the presence of oxygen (O) to convert SOto sulfur trioxide (SO); contacting SOin the resultant SO-enriched carbon dioxide gas with water to produce sulfuric acid and SO-depleted carbon dioxide gas; and separating the sulfuric acid from the SO-depleted carbon dioxide gas. If present, NOis also removed from the carbon dioxide feed gas as nitric acid to produce SO-depleted, NO-lean carbon dioxide gas. The method has particular application in the removal of SOand NOfrom flue gas produced by oxyfuel combustion of a hydrocarbon fuel or carbonaceous fuel, within or downstream of the COcompression train of a COrecovery and purification system.