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, 1998
Filed:
Jun. 30, 1995
Applicant:
Inventors:
Hung-Wen Jen, Troy, MI (US);
Haren Sakarlal Gandhi, Farmington Hills, MI (US);
Assignee:
Ford Global Technologies, Inc., Dearborn, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
502348 ; 4232391 ;
Abstract
This invention is a catalyst comprising silver loaded on a particularly defined alumina for reducing nitrogen oxide from emissions generated by a lean-burn engine. The alumina has (i) a high surface area of at least 150 m.sup.2 /g, (ii) a small average pore diameter between 15 to 100 angstroms wherein at least 65% of the pore diameters are in the range of 15 and 100 angstroms, and (iii) pore diameters distributed in a narrow range such that at least 55% of the pore diameters are distributed in a 50 angstrom range.