Modified Y-type molecular sieve, catalytic cracking catalyst comprising the same, their preparation and application thereof

US11691132B2 · kind B2 · utility

Assignees

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

Inventors

• Lingping Zhou · Beijing, CN
• Qiuqiao Jiang · Beijing, CN
• Shuai Yuan · Chongqing, CN
• Hao Sha · Beijing, CN
• Mingde Xu · Beijing, CN
• Zhenyu Chen · Beijing, CN
• Weilin Zhang · Nanhu, CN
• Huiping Tian · Beijing, CN

Key dates

• Filing date: Aug 15, 2019
• Grant date: Jul 4, 2023
• Expiry date: May 25, 2040

Classification

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

Abstract

A modified Y-type molecular sieve has a rare earth content of about 4% to about 11% by weight on the basis of the oxide, a phosphorus content of about 0.05% to about 10% by weight on the basis of P2O5, a sodium content of no more than about 0.5% by weight on the basis of sodium oxide, a gallium content of about 0.1% to about 2.5% by weight on the basis of gallium oxide, and a zirconium content of about 0.1% to about 2.5% by weight on the basis of zirconia; and the modified Y-type molecular sieve has a total pore volume of about 0.36 mL/g to about 0.48 mL/g, a percentage of the pore volume of secondary pores having a pore size of 2-100 nm to the total pore volume of about 20% to about 40%.