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:
Nov. 05, 2002
Filed:
Mar. 27, 2000
Hee-Sung Yang, Ulsan-Si, KR;
Seok-Lyong Song, Ulsan-Si, KR;
Hyun-Chul Choi, Ulsan-Si, KR;
In-Sik Nam, Hyoja-Dong, KR;
Ho-Jeong Chae, Hyoja-Dong, KR;
Hyundai Heavy Industries Co., Ltd., Ulsan-Si, KR;
Abstract
A catalyst for effectively removing NOx by using NH as a reducing agent is disclosed. Particularly, a vanadia impregnated onto Ti-PILC (titania-pillared interlayer clay) is disclosed, which is prepared by the generally known technology. More specifically, a V O /Ti-PILC catalyst is disclosed, in which NOx contained in the flue gas from an electric power plant and the like (an excessive amount of SO being present in the flue gas stream) is reacted with NH (which is injected as a reducing agent) over a vanadia impregnated onto a Ti-PILC, so that they can be converted into harmless nitrogen and water. The V O /Ti-PILC catalyst is employed for reducing NOx contained in the exhaust gas stream as well as the large amounts of SO into nitrogen and water. The catalyst is prepared by pillaring a titania to a clay by a pillaring method. The V O /Ti-PILC catalyst prepared in the present invention reveals a superior NO removal activity under dry and wet conditions compared with the commercial V O —WO /TiO catalyst.