Magnesium modified Y-type molecular sieve, preparation thereof and catalyst comprising the same

US11053129B2 · kind B2 · utility

Assignees

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

Inventors

• Lingping Zhou · Beijing, CN
• Weilin Zhang · Nanhu, CN
• Mingde Xu · Beijing, CN
• Zhenyu Chen · Beijing, CN
• Huiping Tian · Beijing, CN
• Yuxia Zhu · Beijing, CN

Key dates

• Filing date: Feb 12, 2018
• Grant date: Jul 6, 2021
• Expiry date: Mar 29, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2006/37
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A magnesium modified Y-type molecular sieve has a rare earth oxide content of about 4% to about 11% by weight, a magnesium oxide content of about 0.1% to about 4% by weight, a sodium oxide content of about 0.3% to about 0.8% by weight, a total pore volume of about 0.33 mL/g to about 0.39 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 the modified Y-type molecular sieve of about 10% to about 30%, a lattice constant of about 2.440 nm to about 2.455 nm, a percentage of non-framework aluminum content to the total aluminum content of the modified Y-type molecular sieve of no more than about 20%, and a lattice collapse temperature of not lower than about 1045° C.