Alkylation catalyst and the application thereof

US6093866A · kind A · utility

Assignees

• CHINA PETROCHEMICAL CORPORATION
• DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES · CN
• Fushun Petrochemical Company of Sinopec · CN

Inventors

• Qingxia Wang · Shanghai, CN
• Shurong Zhang · 东风镇, CN
• Guangyu Cai · 东风镇, CN
• Feng Li · Auburn, US
• Longya Xu · 东风镇, CN
• Zuxian Huang · 东风镇, CN
• Yuying Li · 东风镇, CN

Key dates

• Filing date: Jun 23, 1997
• Grant date: Jul 25, 2000
• Expiry date: Jun 23, 2017

Classification

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

Abstract

An alkylation catalyst comprises from 50 to 70 wt % of hydrogen type ZSM-SM-11 co-crystaline zeolite containing rare earth element and the rest amount of porous inorganic oxide matrix material. The zeolite has particular chemical composition and X-ray diffraction lines. This catalyst has higher activity, selectivity and stability in alkylation process than that of the prior art. With this catalyst the process for preparing ethyl benzene by alkylation of benzene with ethylene has higher ethylene conversion and ethyl benzene selectivity.