Title:
CERIUM OXIDE CATALYST MODIFIED BY PHOSPHORIC ACID, AND PREPARATION METHOD AND APPLICATION OF CERIUM OXIDE CATALYST
Document Type and Number:
WIPO Patent Application WO/2020/151577
Kind Code:
A1
Abstract:
The present invention relates to the technical field of air pollution control. Disclosed are a cerium oxide catalyst modified by phosphoric acid, and a preparation method and application of the cerium oxide catalyst. The preparation method comprises the following steps: (1) soaking cerium oxide in a phosphoric acid solution, then filtering out the cerium oxide, washing the cerium oxide to be neutral, and drying same; (2) calcining the dried cerium oxide at the temperature of 100-400 °C for 1-4 hours to obtain the cerium oxide catalyst modified by the phosphoric acid. The catalyst prepared by means of the preparation method of the present invention can be used for catalytic oxidation degradation of chlorine-containing volatile organic compounds, has high catalytic activity, strong chlorine poisoning resistance, sulfur poisoning resistance and water resistance, and long catalytic service life, cannot easily generate toxic by-products when the chlorine-containing volatile organic compounds are catalytically oxidized, and has no secondary pollution.
Inventors:
WU ZHONGBIAO (CN)
WENG XIAOLE (CN)
DAI XIAOXIA (CN)
LIU YUE (CN)
WANG HAIQIANG (CN)
WENG XIAOLE (CN)
DAI XIAOXIA (CN)
LIU YUE (CN)
WANG HAIQIANG (CN)
Application Number:
PCT/CN2020/072585
Publication Date:
July 30, 2020
Filing Date:
January 17, 2020
Export Citation:
Assignee:
UNIV ZHEJIANG (CN)
International Classes:
B01J27/18; B01D53/70; B01D53/86
Foreign References:
| CN109603869A | 2019-04-12 | |||
| JP2006289157A | 2006-10-26 | |||
| CN1806897A | 2006-07-26 | |||
| US20110003682A1 | 2011-01-06 |
Other References:
SOO LING CHONG , JIAH CHEE SOH , CHIN KUI CHENG: "Production of Ethylene from Ethanol Dehydration over H3PO4-Modified Cerium Oxide Catalyst", MALAYSIAN JOURNAL OF ANALYTICAL SCIENCES, vol. 21, no. 4, 20 August 2017 (2017-08-20), pages 839 - 848, XP055723700, ISSN: 1394-2506, DOI: 10.17576/mjas-2017-2104-10
QIGUANG DAI , XINGYI WANG , GUANZHONG LU: "Low-Temperature Catalytic Destruction of Chlorinated VOCs over Cerium Oxide", CATALYSIS COMMUNICATIONS, vol. 8, no. 11, 27 January 2007 (2007-01-27), pages 1645 - 1649, XP022262200, ISSN: 1566-7367, DOI: 10.1016/j.catcom.2007.01.024
QIGUANG DAI , XINGYI WANG , GUANZHONG LU: "Low-Temperature Catalytic Destruction of Chlorinated VOCs over Cerium Oxide", CATALYSIS COMMUNICATIONS, vol. 8, no. 11, 27 January 2007 (2007-01-27), pages 1645 - 1649, XP022262200, ISSN: 1566-7367, DOI: 10.1016/j.catcom.2007.01.024
Attorney, Agent or Firm:
HANGZHOU TIANQIN INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
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