Selective hydrogenation catalyst system and process for preparing the same and its use

US6459008B1 · kind B1 · utility

Assignees

• CHINA PETROCHEMICAL CORPORATION
• Beijing Research Institute of Chemical Industry SINOPEC · CN

Inventors

• Wei Dai · Beijing, CN
• Jing Zhu · Shanghai, CN
• Helong Li · Beijing, CN
• Yanlai Guo · Beijing, CN
• Wei Mu · Huangyang, CN
• Hui Peng · Miaocheng, CN
• Xin Chen · Shanghai, CN

Key dates

• Filing date: Jun 23, 2000
• Grant date: Oct 1, 2002
• Expiry date: Jun 23, 2020

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J23/6447
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A selective hydrogenation catalyst system, and a process for its preparation and its use. The catalyst system of the invention comprises a support material, a Pd-containing catalyst component and a Bi-containing cocatalyst component. The catalyst system of the invention is manufactured by impregnating the support material simultaneously or separately with Pd-containing solution, Bi-containing solution or/and one or more other cocatalyst solutions, and then drying and calcining. The activity and selectivity of the catalyst system of the invention, in selective hydrogenation of acetylenic and diolefmic compounds in hydrocarbon feeds, are significantly improved, while the green oil formation and carbon deposit on the catalyst reduced, and the service life increased and production costs decreased.