ALKYLENE OXIDE PREPARATION METHOD AND SYSTEM

WIPO Patent Application WO/2024/088369

A1

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).

WO/2007/128666	TITANIUM CATALYST, ITS PREPARATION AND ITS USE IN EPOXIDATION REACTIONS
JP2007516956	New aromatic derivative

LI MUJIN (CN)
GAO RUI (CN)
SHI DEPAN (CN)
ZHAI ZHONGXI (CN)
ZHAO PENG (CN)

PCT/CN2023/127003

May 02, 2024

October 27, 2023

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CHINA PETROLEUM & CHEMICAL CORP (CN)
SINOPEC SHANGHAI RESEARCH INSTITUTE OF PETROCHEMICAL TECH CO LTD (CN)

C07D301/19; B01J8/04; C07D303/04

CHINA PATENT AGENT (H.K.) LTD. (CN)

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