Modified Y molecular sieve and preparation method and use thereof, supported catalyst, and hydrocracking method

US10112840B2 · kind B2 · utility

Assignees

• CHINA PETROLEUM & CHEMICAL CORPORATION · CN
• Fushun Research Institute of Petroleum and Petrochemicals, SINOPEC CORP. · CN

Inventors

• Wei Liu · Hangzhou City, CN
• Minghua Guan · 东风镇, CN
• Yanze Du · 东风镇, CN
• Fenglai Wang · 东风镇, CN
• Chang Liu · Beijing, CN
• Bo Qin · Beijing, CN

Key dates

• Filing date: Nov 3, 2015
• Grant date: Oct 30, 2018
• Expiry date: May 3, 2036

Classification

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

Abstract

The present invention discloses a modified Y molecular sieve, a preparation method and a use of the modified Y molecular sieve, a supported catalyst, and a hydrocracking method. The silica-alumina mole ratio in the surface layer of the modified Y molecular sieve is 20-100:1, and the silica-alumina mole ratio in the body phase of the modified Y molecular sieve is 8-30:1. When a hydrocracking catalyst prepared from the modified Y molecular sieve is used for hydrocracking, the hydrocracking catalyst has higher reactivity and higher nitrogen tolerance. The hydrocracking catalyst prepared from the modified Y molecular sieve is suitable for use for increasing the yield of diesel oil, increasing the yield of chemical materials, and catalyzed hydrogenation conversion of diesel oil, etc.