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:
Aug. 24, 2010
Filed:
Feb. 23, 2006
John Allen Rudesill, Columbia, MD (US);
George Yaluris, Park Ridge, IL (US);
Meenakshi Sundaram Krishnamoorthy, Columbia, MD (US);
Timothy Dougan, Pasadena, MD (US);
Katherine W. Dougan, Legal Representative, Pasadena, MD (US);
John Allen Rudesill, Columbia, MD (US);
George Yaluris, Park Ridge, IL (US);
Meenakshi Sundaram Krishnamoorthy, Columbia, MD (US);
Timothy Dougan, Pasadena, MD (US);
Katherine W. Dougan, legal representative, Pasadena, MD (US);
W. R. Grace & Co.-Conn., Columbia, MD (US);
Abstract
A process for the reduction of NOemissions from a regeneration zone during a fluid catalytic cracking (FCC) process are disclosed. The process comprises contacting a hydrocarbon feedstock with a circulating inventory of an FCC cracking catalyst and a NOreduction composition during an FCC process. The NOreduction composition comprises at least one reduced nitrogen species component having the ability to reduce the content of reduced nitrogen species to molecular nitrogen under reducing or partial burn FCC conditions and at least one NOreduction component having the ability to convert NOto molecular nitrogen under oxidizing or full burn FCC conditions.