Title:
ALKYLENE OXIDE PREPARATION METHOD AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2024/088369
Kind Code:
A1
Abstract:
Disclosed are a method for preparing alkylene oxide, and a system. The method comprises causing an input material containing an alkene, a hydrogen peroxide alkylbenzene, and an alkylbenzene to enter a reaction zone comprising at least two series-connected catalyst bed layers so as to perform an epoxidation reaction to obtain a reaction product containing alkylene oxide, wherein after a catalyst bed layer located in a logical first position becomes inactive, removing same and replacing with a fresh catalyst bed layer or a regenerated catalyst bed layer; wherein an inlet temperature of the input material entering the replacement fresh catalyst bed layer or regenerated catalyst bed layer satisfies the following formula (1), such that the temperature of an output material leaving the replacement fresh catalyst bed layer or regenerated catalyst bed layer is less than or equal to 130℃. The system is used for preparing alkylene oxide, the system comprises a temperature controller, and the temperature controller controls the inlet temperature of input material of a newly replaced fresh catalyst bed layer or regenerated catalyst bed layer, so that the inlet temperature satisfies formula (1).
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Inventors:
LI MUJIN (CN)
GAO RUI (CN)
SHI DEPAN (CN)
ZHAI ZHONGXI (CN)
ZHAO PENG (CN)
GAO RUI (CN)
SHI DEPAN (CN)
ZHAI ZHONGXI (CN)
ZHAO PENG (CN)
Application Number:
PCT/CN2023/127003
Publication Date:
May 02, 2024
Filing Date:
October 27, 2023
Export Citation:
Assignee:
CHINA PETROLEUM & CHEM CORP (CN)
SINOPEC SHANGHAI RESEARCH INSTITUTE OF PETROCHEMICAL TECH CO LTD (CN)
SINOPEC SHANGHAI RESEARCH INSTITUTE OF PETROCHEMICAL TECH CO LTD (CN)
International Classes:
C07D301/19; B01J8/04; C07D303/04
Foreign References:
US20030153775A1 | 2003-08-14 | |||
CN1809546A | 2006-07-26 | |||
US20030097009A1 | 2003-05-22 | |||
CN109476621A | 2019-03-15 | |||
CN104557782A | 2015-04-29 | |||
CN105272938A | 2016-01-27 | |||
US6365761B1 | 2002-04-02 | |||
US6583300B1 | 2003-06-24 | |||
CN104557779A | 2015-04-29 | |||
CN105272948A | 2016-01-27 | |||
CN112851602A | 2021-05-28 |
Attorney, Agent or Firm:
CHINA PATENT AGENT (H.K.) LTD. (CN)
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