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:
May. 25, 1993
Filed:
Jun. 04, 1991
Applicant:
Inventor:
Dennis J Helfritch, Flemington, NJ (US);
Assignee:
Research-Cottrell, Inc., Somerville, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; C01B / ;
U.S. Cl.
CPC ...
423239 ;
Abstract
The present invention pertains to a method for nitrogen oxide reduction and flue gas reheating wherein a catalyst surface is heated to an operating temperature to facilitate a catalytic reduction reaction in the presence of relatively cool flue gas. To avoid conventional complication the catalytic reduction reaction is performed downstream of both particulate control operations and desulfurization procedures. That is, the catalyst surface itself is placed just before the stack. The method of the present invention reheats the flue gas prior to its exit into the atmosphere.