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:
Sep. 11, 1990
Filed:
Jan. 13, 1989
Robert P Cahn, Millburn, NJ (US);
Boyd E Hurst, Long Valley, NJ (US);
Exxon Research and Engineering Company, Florham Park, NJ (US);
Abstract
A gas desulfurization process is provided in which a gaseous mixture comprising sulfur oxides is contacted in an absorption zone, at absorption conditions, with an aqueous composition comprising ammonium carbonate, or ammonium bicarbonate or mixtures thereof, in an amount such that the product of the partial pressures of the sulfur oxides and ammonia over said aqueous composition is below a specified limit, to produce a gaseous product having a decreased content of sulfur oxides and a decreased appearance of blue haze. A combination nitrogen oxides removal (deNO.sub.x) and desulfurization (deSO.sub.x) process is also provided.