Modified Y-type zeolite and preparation process and use thereof

US9782757B2 · kind B2 · utility

Assignees

• CHINA PETROLEUM & CHEMICAL CORPORATION · CN
• RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC · CN

Inventors

• Yibin Luo · Beijing, CN
• Li Zhuang · Beijing, CN
• Minggang Li · Beijing, CN
• Ying Ouyang · Beijing, CN
• Xingtian Shu · Beijing, CN

Key dates

• Filing date: Oct 26, 2012
• Grant date: Oct 10, 2017
• Expiry date: Jul 3, 2034

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2235/15
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A modified Y-type molecular sieve has a unit cell size of 2.420-2.440 nm. It contains a phosphorus content of 0.05-6%, a RE2O3 content of 0.03-10%, and an alumina content of less than 22%, and a specific hydroxyl nest concentration of less than 0.35 mmol/g and more than 0.05 mmol/g. The modified Y-type molecular sieve is used as the active component in a catalytic cracking catalyst. The catalytic cracking catalyst maintains a stable activity for a long time, effectively controls the coke yield and increases the heavy oil utilization.