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:
Jan. 20, 1981
Filed:
May. 26, 1978
Applicant:
Inventors:
James R Kittrell, Amherst, MA (US);
Donald L Herman, Coventry, RI (US);
Assignees:
New England Power Service Company, Westborough, MA (US);
Northeast Utilities Service Company, Berlin, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B01J / ; B01J / ; F01N / ;
U.S. Cl.
CPC ...
422171 ; 422176 ; 422180 ; 422181 ;
Abstract
A method and apparatus for reducing nitric oxide in a gas with ammonia in the presence of a base metal catalyst pretreated with sulfur, selenium or a sulfur compound positioned in a reactor. The catalyst is deposited on a substrate or confined between gas-permeable walls and arranged to form open channels through which the nitric oxide-containing gas thereby effects low pressure drop through the reactor.