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:
Jun. 30, 2015
Filed:
May. 30, 2012
Vincent White, Ashtead, GB;
Kevin Boyle Fogash, Wescosville, PA (US);
Francis Peter Petrocelli, Allentown, PA (US);
Vincent White, Ashtead, GB;
Kevin Boyle Fogash, Wescosville, PA (US);
Francis Peter Petrocelli, Allentown, PA (US);
Air Products and Chemicals, Inc., Allentown, PA (US);
Abstract
Sulfur dioxide (SO) is removed from a carbon dioxide feed gas by maintaining the feed gas at elevated pressure(s) in the presence of oxygen (O), water and NOfor a period of time sufficient to convert SOto sulfuric acid and NOto nitric acid and produce SO-depleted, NO-lean carbon dioxide gas. The invention resides in separating the sulfuric and nitric acids from said SO-depleted, NO-lean carbon dioxide gas, and then neutralizing the acids by reaction with an alkaline sorbent in an acid/sorbent reactor system to produce sorbent-derive sulfate. The method has particular application in the removal of SOand NOfrom flue gas produced by oxyfuel combustion of a carbonaceous fuel.