Title:
ADSORBENT FOR SEPARATING ETHYLBENZENE FROM C8 AROMATIC HYDROCARBONS AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/151561
Kind Code:
A1
Abstract:
The present invention discloses an adsorbent for separating ethylbenzene from C8 aromatic hydrocarbons and a preparation method therefor. The adsorbent mainly comprises X zeolite, which has a silica-alumina ratio (SiO2/Al2O3) of 2.0-2.3 and a grain size of 0.5-5 μm. The adsorbent is prepared by treating the X zeolite by means of a combined treatment process of alkali metal ion exchange and surface estersil modification. The adsorbent of the present invention can separate ethylbenzene from mixed C8 aromatic hydrocarbons, and the resulting ethylbenzene product has a relatively high purity and yield.
Inventors:
ZHAO YUN (CN)
LI BEN (CN)
WANG YANG (CN)
HU ZHIZHONG (CN)
LI BIN (CN)
GUO CHUNLEI (CN)
ZANG JIAZHONG (CN)
ZHAO CHUANG (CN)
CHEN ZIHAO (CN)
YU HAIBIN (CN)
LI BEN (CN)
WANG YANG (CN)
HU ZHIZHONG (CN)
LI BIN (CN)
GUO CHUNLEI (CN)
ZANG JIAZHONG (CN)
ZHAO CHUANG (CN)
CHEN ZIHAO (CN)
YU HAIBIN (CN)
Application Number:
PCT/CN2023/074837
Publication Date:
August 17, 2023
Filing Date:
February 07, 2023
Export Citation:
Assignee:
CNOOC TIANJIN CHEMICAL RES & DESIGN INST CO LTD (CN)
CNOOC ENERGY TECH & SERV LTD (CN)
CNOOC ENERGY TECH & SERV LTD (CN)
International Classes:
B01J20/18; B01J20/30
Foreign References:
| CN106552582A | 2017-04-05 | |||
| CN104971695A | 2015-10-14 | |||
| CN106552583A | 2017-04-05 | |||
| CN112573985A | 2021-03-30 | |||
| CN113087585A | 2021-07-09 | |||
| US20090326308A1 | 2009-12-31 | |||
| KR20130110683A | 2013-10-10 |
Attorney, Agent or Firm:
CNOOC TIANJIN CHEMICAL RESEARCH & DESIGN INSTITUTE CO. LTD (CN)
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