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:
Mar. 20, 1990
Filed:
Feb. 16, 1989
Applicant:
Inventors:
Hans-Hermann Heins, Leverksen, DE;
Siegfried Gruhl, Engelskirchen-Ruenderoth, DE;
Klaus Holzer, Leverkusen, DE;
Michael Bueb, Dormagen, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; C01B / ;
U.S. Cl.
CPC ...
423239 ;
Abstract
A process for the reduction of nitrogen oxides contained in exhaust gases comprising reacting the gases with a reducing agent in the presence of a catalyst, the catalyst being based on carbon and having a carbon content greater than 65% by weight and containing 0.1 to 10% by weight of a sparingly soluble oxide of one or more metal selected from the group consisting of Co, Fe, Ni, Cr, V, Mo, W, Cu, Mn and Ti and having a nitrogen content of from 0.5 to 5% by weight, wherein the molar ratio of the reducing agent to the nitrogen oxide is 0.3 to 0.7.