公开(公告)号：US09533259B2

公开(公告)日：2017-01-03

申请号：US15028373

申请日：2013-10-09

Applicant: ZHEJIANG UNIVERSITY

Inventor： Xiang Gao ,  Zhongyang Luo ,  Kefa Cen ,  MingJiang Ni ,  Hao Song ,  Weihong Wu ,  Hongmin Yu ,  Zhenglun Shi ,  Jinsong Zhou ,  Mengxiang Fang ,  Chunjiang Yu ,  Shurong Wang ,  Lemin Cheng ,  Qinhui Wang

IPC: C01B31/08 ,  B01D53/96 ,  B01F3/04 ,  B01J38/00 ,  B01J38/02 ,  B01J38/48 ,  B01J38/52 ,  B01D53/86

CPC classification number: B01D53/96 ,  B01D53/8625 ,  B01D2257/40 ,  B01D2257/404 ,  B01F3/04106 ,  B01F3/0412 ,  B01F3/04439 ,  B01F2003/04156 ,  B01F2003/04234 ,  B01F2003/04865 ,  B01F2003/04943 ,  B01J23/30 ,  B01J23/92 ,  B01J35/1014 ,  B01J35/1038 ,  B01J35/1061 ,  B01J38/00 ,  B01J38/02 ,  B01J38/48 ,  B01J38/485 ,  B01J38/52 ,  B01J38/72

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.

Abstract translation: 公开了一种由微波辅助的SCR脱硝催化剂的再生方法。 该方法包括：（1）将中毒的SCR脱硝催化剂浸入去离子水中，通过鼓泡法清洗SCR脱硝催化剂; （2）将SCR脱硝催化剂转移到含有用于浸泡处理的孔扩展溶液的容器中; （3）将SCR脱硝催化剂转移到微波装置中处理1-10分钟; （4）将SCR脱硝催化剂转移到具有活化液体的容器中并浸渍1-4小时; （5）将SCR脱硝催化剂用微波干燥1-20分钟; 和（6）将SCR脱硝催化剂在500-600℃的条件下煅烧4-7小时。 本发明具有易于获得的原料，在设备和工艺上简单节能，适用于工业规模的再生。 通过本发明方法处理的催化剂具有孔隙疏松，孔结构明显优化，催化剂表面条件显着改善，活性高，经济效益好等优点。