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. 15, 2012
Filed:
Dec. 24, 2008
Junseong Ahn, Daejeon, KR;
Bongjae Kim, Daejeon, KR;
Sangho Lee, Daejeon, KR;
Okyoun Kim, Daejeon, KR;
Seunghoon OH, Seoul, KR;
Junseong Ahn, Daejeon, KR;
Bongjae Kim, Daejeon, KR;
Sangho Lee, Daejeon, KR;
Okyoun Kim, Daejeon, KR;
Seunghoon Oh, Seoul, KR;
SK Innovation Co., Ltd., Seoul, KR;
Abstract
The present invention relates to conversion of exhaust gas containing nitrogen oxide (NO) such as NO, NOand NO into Nand HO through catalytic reaction with injection of a reducing agent such as ammonia and urea. A fabrication method of zeolite honeycomb type catalyst for reducing nitrogen oxide of the present invention includes: (a) obtaining an inorganic binder by mixing and uniformly peptizing pseudo-boehmite, distilled water and a pH adjuster; (b) obtaining a paste by mixing and kneading zeolite, the inorganic binder, an organic binder and distilled water; (c) extruding the paste into an extrudate having a through pore of a regular structure; and (d) drying and heat treating the extrudate.