Modified Y-type molecular sieve and preparation method thereof, hydrocracking catalyst and preparation method thereof, and method for hydrocracking hydrocarbon oil

US11179705B2 · kind B2 · utility

Assignees

• CHINA PETROLEUM & CHEMICAL CORPORATION · CN
• DALIAN 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
• Bo Qin · Beijing, CN
• Hang Gao · Beijing, CN

Key dates

• Filing date: Nov 29, 2017
• Grant date: Nov 23, 2021
• Expiry date: Nov 29, 2037

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10G2300/70
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A modified Y-type molecular sieve contains 0.5-2 wt. % of Na2O based on the total amount of the modified Y-type molecular sieve. In the modified Y-type molecular sieve, the ratio between the total acid amount measured by pyridine and infrared spectrometry and total acid amount measured by n-butyl pyridine and infrared spectrometry is 1-1.2. The total acid amount measured by pyridine and infrared spectrometry of the modified Y-type molecular sieve is 0.1-1.2 mmol/g. The acid center sites of the molecular sieve of the modified Y-type molecular sieve are distributed in the large pore channels. The molecular sieve is used in the hydrocracking reaction process of a wax oil.