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. 03, 2017
Filed:
Oct. 09, 2013
Zhejiang University, Hangzhou, Zhejiang Province, CN;
Xiang Gao, Hangzhou, CN;
Zhongyang Luo, Hangzhou, CN;
Kefa Cen, Hangzhou, CN;
MingJiang Ni, Hangzhou, CN;
Hao Song, Shaoxing, CN;
Weihong Wu, Hangzhou, CN;
Hongmin Yu, Hangzhou, CN;
Zhenglun Shi, Hangzhou, CN;
Jinsong Zhou, Hangzhou, CN;
Mengxiang Fang, Hangzhou, CN;
Chunjiang Yu, Hangzhou, CN;
Shurong Wang, Hangzhou, CN;
Lemin Cheng, Hangzhou, CN;
Qinhui Wang, Hangzhou, CN;
ZHEJIANG UNIVERSITY, Hangzhou, CN;
Abstract
Disclosed is a method for regenerating a SCR denitration catalyst assisted by microwaves. The method comprises: (1) a poisoned SCR denitration catalyst is immersed in deionized water, and the SCR denitration catalyst is cleaned by a bubbling method; (2) the SCR denitration catalyst is transferred to a container containing a pore-expanding solution for a soaking treatment; (3) the SCR denitration catalyst is transferred to a microwave device and treated for 1-10 minutes; (4) the SCR denitration catalyst is transferred to a container with an activating liquid and impregnated for 1-4 hours; (5) the SCR denitration catalyst is dried with microwaves for 1-20 minutes; and (6) the SCR denitration catalyst is calcined under conditions of 500-600° C. for 4-7 hours. The present invention has readily available raw materials, is simple and energy-saving in device and process, and is suitable for industrial scale regeneration. The catalyst treated by the method of the present invention has the advantages of loose pore channels, obviously optimized pore structures, significantly improved catalyst surface conditions, high activity, and good economic benefits.