Zhejiang University

Lemin Cheng

Xiang Gao

Zhongyang Luo

Kefa Cen

Qinhui Wang

Mengxiang Fang

Chunjiang Yu

Mingjiang Ni

Jinsong Zhou

Shurong Wang

Weihong Wu

Zhenglun Shi

Hao Song

Hongmin Yu

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&#xb0; 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.

Method for regenerating SCR denitration catalyst assisted by microwaves and device therefor

Growing community of inventors

Hangzhou, China

Lemin Cheng