METHOD FOR PREPARING ALKYLBENZENE

WIPO Patent Application WO/2023/124789

A1

The present invention provides a method for preparing alkylbenzene, comprising: carrying out an alkylation reaction on benzene and an olefin raw material under the action of a solid acid catalyst to obtain alkylbenzene. The olefin raw material comprises a long-chain olefin which has a carbon number of no less than 6. The solid acid catalyst comprises a binder and a low-stack molecular sieve which has an MWW topological structure, wherein the axial direction of the crystal zone axis of the low-stack molecular sieve which has the MWW topological structure is a c-axis direction, the thickness of the low-stack molecular sieve which has the MWW topological structure in the c-axis direction is 1.5-25 nm, and the maximum length of the low-stack molecular sieve which has the MWW topological structure on a plane perpendicular to the c-axis direction is 200-3000 nm. The present invention has advantages such as a catalyst having a long single-pass service life, raw materials having a high conversion rate, 2-alkylbenzene and 3-alkylbenzene having high selectivity, as well as low costs and the like, and is beneficial to industrial application.

JPH0525064	PRODUCTION OF ALKYL-SUBSTITUTED AROMATIC COMPOUND
WO/1995/007874	PROCESS FOR PREPARING ALKYL AROMATIC COMPOUNDS

CUI YAN (CN)
HAN MINGHAN (CN)
XING SHIYONG (CN)
SHEN YIHONG (CN)
LI MENGCHEN (CN)
WANG XIAOHUA (CN)
GUO CHENGYU (CN)
YU HONGYUE (CN)
ZHANG SHANG (CN)
CHI KEBIN (CN)

PCT/CN2022/136459

July 06, 2023

December 05, 2022

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PETROCHINA CO LTD (CN)

C07C2/66; B01J29/70; C07C15/107

CN111763130A	2020-10-13
CN113620766A	2021-11-09
US20110118521A1	2011-05-19

LEADER PATENT & TRADEMARK FIRM (CN)

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