Catalyst including molecular sieve having topological pore structure, preparation method therefor and use thereof

US12246308B2 · kind B2 · utility

Assignees

• CHINA PETROLEUM & CHEMICAL CORPORATION · CN
• SHANGHAI RESEARCH INSTITUTE OF PETROCHEMICAL TECHNOLOGY, SINOPEC · CN

Inventors

• Chang Liu · Beijing, CN
• Yangdong Wang · Shanghai, CN
• Zaiku Xie · Shanghai, CN
• Su Liu · Xuzhou, CN
• Haibo Zhou · Shanghai, CN
• JUNJIE SU · San Diego, US
• Wenqian Jiao · Shanghai, CN
• Lin Zhang · Beijing, CN

Key dates

• Filing date: Oct 19, 2021
• Grant date: Mar 11, 2025
• Expiry date: Mar 3, 2042

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/52
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A catalyst contains a metal oxide, and a molecular sieve, in a crystal form, having a topological pore structure. The metal oxide is centrally distributed on the surface of the molecular sieve. Grains of the molecular sieve are exposed to at least three families of crystal planes. The family of crystal plane with the largest pore size in topology is occupied by the metal oxide by no more than 30%, preferably no more than 20%, or no more than 10%.