Title:
HONEYCOMB TYPE LOW-TEMPERATURE SCR DENITRATION CATALYST AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/103330
Kind Code:
A1
Abstract:
A honeycomb type low-temperature SCR denitration catalyst and a preparation method therefor, comprising the following steps: A. mixing: adding 100-150 parts titanium molybdenum powder, 8-20 parts carboxymethyl cellulose, 5-10 parts polyethylene oxide, 5-7.5 parts silica powder, 5-7.5 parts silica sol, 7-18 parts wood pulp, 25-50 parts glass fiber, 50-80 parts deionized water, 5-15 parts of an ammonium metavanadate solution, 10-20 parts of an ammonium metatungstate solution, 30-55 parts ammonia water and 10-20 parts lactic acid by weight to a mixer for thorough mixing; after mixing, extracting water vapor in the mixer, wherein the molybdenum content in the titanium molybdenum powder is ≥7%; B. molding; C. drying; and D. calcining. The present preparation method reduces energy consumption, and the denitration efficiency of the prepared honeycomb type low-temperature SCR denitration catalyst reaches over 83% between a temperature of 160-250°C.
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Inventors:
GAO CHUNYU (CN)
MENG FANQIANG (CN)
QIN YIMING (CN)
WANG JIANGUO (CN)
CHEN HUA (CN)
YU NING (CN)
FAN JUAN (CN)
SUN WENQIANG (CN)
XU HAILONG (CN)
HE MINGJIE (CN)
WANG JINFENG (CN)
LIU LI (CN)
ZHANG XIN (CN)
MENG FANQIANG (CN)
QIN YIMING (CN)
WANG JIANGUO (CN)
CHEN HUA (CN)
YU NING (CN)
FAN JUAN (CN)
SUN WENQIANG (CN)
XU HAILONG (CN)
HE MINGJIE (CN)
WANG JINFENG (CN)
LIU LI (CN)
ZHANG XIN (CN)
Application Number:
PCT/CN2019/072898
Publication Date:
May 28, 2020
Filing Date:
January 24, 2019
Export Citation:
Assignee:
HUADIAN QINGDAO ENV TECHNOLOCY CO LTD (CN)
International Classes:
B01J23/30; B01D53/56; B01D53/90; B01J37/08
Foreign References:
| CN107335427A | 2017-11-10 | |||
| CN106732532A | 2017-05-31 | |||
| CN108404966A | 2018-08-17 | |||
| CN108404902A | 2018-08-17 | |||
| CN102921405A | 2013-02-13 | |||
| CN106955714A | 2017-07-18 |
Attorney, Agent or Firm:
QINGDAO FIRST PATENT & TRADEMARK AGENT CO., LTD. (CN)
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