CATALYST FOR PRODUCING LOW-CARBON OLEFIN BY MEANS OF CATALYTIC CRACKING, AND PREPARATION METHOD THEREFOR AND USE THEREOF

Title:

CATALYST FOR PRODUCING LOW-CARBON OLEFIN BY MEANS OF CATALYTIC CRACKING, AND PREPARATION METHOD THEREFOR AND USE THEREOF

Document Type and Number:

WIPO Patent Application WO/2023/124747

Kind Code:

A1

Abstract:

The present application provides a catalyst for producing a low-carbon olefin by means of catalytic cracking, and a preparation method therefor and the use thereof. The catalyst comprises an MFI structure molecular sieve, and lanthanum and phosphorus, which are loaded on the MFI structure molecular sieve, wherein the mass percentage content of lanthanum in the catalyst is 0.5-1.5%, and the mass percentage content of phosphorus in the catalyst is 0.5-0.9%. The catalyst comprises a first mesoporous distribution of 2-4 nm and a second mesoporous distribution of 7-20 nm. The catalyst can achieve the production of low-carbon olefins at low energy consumption, low cost, high activity and high selectivity.

Inventors:

DAI YUELI (CN)
JI YONGGANG (CN)
ZHANG YONGJUN (CN)
SUN ENHAO (CN)
LI ZHENYE (CN)
WAN SHUBAO (CN)
XU XIANMING (CN)
LIAN YIXIN (CN)
SUN SHUKUN (CN)
CHU HONGLING (CN)

Application Number:

PCT/CN2022/135848

Publication Date:

July 06, 2023

Filing Date:

December 01, 2022

Export Citation:

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Assignee:

PETROCHINA CO LTD (CN)

International Classes:

B01J35/10; B01J29/40; C07C11/04; C07C11/06; C10G11/05

Foreign References:

US20130085311A1	2013-04-04
CN103769192A	2014-05-07
CN112850742A	2021-05-28

Attorney, Agent or Firm:

LEADER PATENT & TRADEMARK FIRM (CN)

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