Title:
ENVIRONMENTALLY-FRIENDLY HIGH-TEMPERATURE DENITRATION CATALYST AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/103848
Kind Code:
A1
Abstract:
An environmentally-friendly high-temperature denitration catalyst and a preparation method therefor. Said catalyst comprise a tungsten and zirconium composite oxide as a main catalyst component, one or more of barium, erbium, tin, iron, molybdenum, cobalt, copper, manganese, and lanthanum as a co-catalyst, a titanium white as a support component, and alumina as a forming auxiliary; with respect to the mass of the titanium white, the mass percentage of the main catalyst component is 8-20%, the mass percentage of the co-catalyst is 0-15%, and the mass percentage of the forming auxiliary is 5-30%; the element molar ratio of W to Zr in the tungsten and zirconium composite oxide is 1: (0.9-1.5). Said catalyst has a good high-temperature denitration effect and high thermal stability, has non-toxic components, and is environmentally friendly, and the preparation process is simple, being applicable to high-temperature NOX removal of exhaust gas of a high-speed diesel engine and denitration of high-temperature exhaust gas in the petrochemical industry.
Inventors:
SHEN YUESONG (CN)
TAO XINGJUN (CN)
SHEN JIANYU (CN)
CHEN MENGMENG (CN)
TAO XINGJUN (CN)
SHEN JIANYU (CN)
CHEN MENGMENG (CN)
Application Number:
PCT/CN2019/119602
Publication Date:
May 28, 2020
Filing Date:
November 20, 2019
Export Citation:
Assignee:
UNIV NANJING TECH (CN)
International Classes:
B01J23/30; B01D53/56; B01D53/94
Foreign References:
| CN109513438A | 2019-03-26 | |||
| CN103433028A | 2013-12-11 | |||
| CN103464142A | 2013-12-25 | |||
| CN101522298A | 2009-09-02 | |||
| CN103240079A | 2013-08-14 | |||
| CN105080566A | 2015-11-25 | |||
| CN105435776A | 2016-03-30 | |||
| CN104741114A | 2015-07-01 | |||
| US20080247929A1 | 2008-10-09 |
Attorney, Agent or Firm:
NANJING TIANHUA PATENT AGENT CO., LTD. (CN)
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