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. 05, 2003
Filed:
Sep. 25, 2001
Kyung-Il Choi, Taejon, KR;
Sang-Ho Lee, Taejon, KR;
Choul-Woo Shin, Taejon, KR;
Jun-Seong Ahn, Taejon, KR;
SK Corporation, Seoul, KR;
Abstract
Disclosed are a catalyst for selective catalytic reduction of nitrogen oxides and a method for preparing the same. The catalyst is prepared using a spent catalyst discharged from a hydro-desulfurization process of an oil refinery in which the spent catalyst comprises vanadium, nickel, molybdenum and sulfur component on alumina, and a tungsten-impregnated support. The catalyst prepared in accordance with the present invention is very advantageous in terms of excellent selective removal effect of nitrogen oxides as well as better poisoning resistance to sulfur oxides.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile