Beta molecular sieve, preparation method therefor and hydrogenation catalyst containing same

US10112186B2 · kind B2 · utility

Assignees

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

Inventors

• Chang Liu · Beijing, CN
• Fenglai Wang · 东风镇, CN
• Keqi Wang · 东风镇, CN
• Yanze Du · 东风镇, CN
• Hong Zhao · Yibin City, CN
• Minghua Guan · 东风镇, CN

Key dates

• Filing date: Oct 28, 2014
• Grant date: Oct 30, 2018
• Expiry date: Jun 15, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10G2400/04
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Disclosed are a beta molecular sieve, a preparation method therefor, and a hydrogenation catalyst containing same. The properties of the beta molecular sieve are as follows: the molar ratio of SiO2/Al2O3 is 30-150, the non-framework aluminum accounts for not more than 2% of the total aluminum, and the silicon atoms coordinated in a Si(OAl) structure account for not less than 95% of the silicon atoms in the framework structure. The preparation method comprises: contacting the raw material powder of the beta molecular sieve with normal pressure and dynamic water vapor, and then with ammonium fluosilicate. The beta molecular sieve of the present invention has the features of a uniform skeleton structure of silicon and aluminum, an appropriate acidity, and a reasonable pore structure, and is suitable as an acidic component of a hydro-upgrading catalyst and a hydro-cracking catalyst for diesel oil.