Title:
BIFUNCTIONAL ADSORBENT, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/066058
Kind Code:
A1
Abstract:
Disclosed are a bifunctional adsorbent, a preparation method therefor and an application thereof. The preparation method comprises: modifying a cryptomanganite molecular sieve by using metal chloride to obtain a bifunctional adsorbent. In the present invention, an adsorbent having the dual functions of catalysis and adsorption is obtained by modifying a cryptomanganite molecular sieve with chloride, which improves adsorption capacity and the cyclic service life of the adsorbent. After the bifunctional adsorbent in the present invention is deactivated due to adsorption saturation, and due to the unique and efficient ozone decomposition effect of the cryptomanganite molecular sieve, ozone may be converted into more oxidative active oxygen atoms, and odor molecules on the surface of the adsorbent undergo oxidative decomposition, that is, normal temperature regeneration of the adsorbent is achieved under an ozone atmosphere; meanwhile, deep degradation of odorous gases such as ammonia and hydrogen sulfide may be achieved during the regeneration process without secondary pollution.
Inventors:
ZHAO HONG (CN)
ZHANG JIE (CN)
ZHANG JIE (CN)
Application Number:
PCT/CN2022/124276
Publication Date:
April 27, 2023
Filing Date:
October 10, 2022
Export Citation:
Assignee:
QINGDAO CHUANGQI MAIWO ENVIRONMENTAL TECH CO LTD (CN)
International Classes:
B01J20/06; B01D53/02; B01D53/48; B01D53/52; B01D53/58; B01D53/86; B01J20/30; B01J20/34; B01J27/10; B01J27/122; B01J27/128; B01J27/138; B01J27/32
Foreign References:
| CN113813915A | 2021-12-21 | |||
| CN101703949A | 2010-05-12 | |||
| US20040018936A1 | 2004-01-29 | |||
| CN103551114A | 2014-02-05 | |||
| JP2017148304A | 2017-08-31 | |||
| CN113117639A | 2021-07-16 |
Other References:
SUN MING, YU LIN, YU QIAN, HAO ZHI-FENG, DIAO GUI-QIANG, ZHENG YU-YING: "Preparation of OMS-2 Based Solid Acid under Microwave Irradiation and Its Application in Synthesis of Isoamyl Acetate", FINE CHEMICALS, vol. 26, no. 12, 31 December 2009 (2009-12-31), pages 1196 - 1199, XP009545104, ISSN: 1003-5214
YAO, KERU ET AL.: " Modification of HX Molecular Sieve and Its Adsorption Properties of Ammonia", JOURNAL OF CHINESE PEOPLE'S ARMED POLICE FORCE ACADEMY, vol. 31, no. 10, 31 October 2015 (2015-10-31), XP009545097, ISSN: 1008-2077
CUI, H. ; TURN, S.Q. ; REESE, M.A.: "Removal of sulfur compounds from utility pipelined synthetic natural gas using modified activated carbons", CATALYSIS TODAY, ELSEVIER, AMSTERDAM, NL, vol. 139, no. 4, 30 January 2009 (2009-01-30), AMSTERDAM, NL , pages 274 - 279, XP025801497, ISSN: 0920-5861, DOI: 10.1016/j.cattod.2008.03.024
YAO, KERU ET AL.: " Modification of HX Molecular Sieve and Its Adsorption Properties of Ammonia", JOURNAL OF CHINESE PEOPLE'S ARMED POLICE FORCE ACADEMY, vol. 31, no. 10, 31 October 2015 (2015-10-31), XP009545097, ISSN: 1008-2077
CUI, H. ; TURN, S.Q. ; REESE, M.A.: "Removal of sulfur compounds from utility pipelined synthetic natural gas using modified activated carbons", CATALYSIS TODAY, ELSEVIER, AMSTERDAM, NL, vol. 139, no. 4, 30 January 2009 (2009-01-30), AMSTERDAM, NL , pages 274 - 279, XP025801497, ISSN: 0920-5861, DOI: 10.1016/j.cattod.2008.03.024
Attorney, Agent or Firm:
QINGDAO JINJIA PATENT AGENCY (GENERAL PARTNERSHIP) (CN)
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