Catalytic promoters for the catalytic cracking of hydrocarbons and the preparation thereof

US6677263B2 · kind B2 · utility

Assignees

• CHINA PETROCHEMICAL CORPORATION
• LUOYANG PETROCHEMICAL ENGINEERING CORPORATION/SINOPEC · CN

Inventors

• Longyan Wang · Beijing, CN
• Xiaobo Sherry Wei · Palo Alto, US
• Danhe Liu · Baofeng County, CN
• Daijun Hao · Baofeng County, CN
• Jinlong Liu · Nanhu, CN
• Xuhui Gong · Baofeng County, CN

Key dates

• Filing date: Aug 10, 2001
• Grant date: Jan 13, 2004
• Expiry date: Nov 3, 2021

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2229/42
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Disclosed is a catalytic promoter for fluid catalytic cracking of hydrocarbons, comprising a HZSM-5 zeolite in an amount of 5-65 wt % based on the total weight of the catalytic promoter, said zeolite being modified with Zn and at least one element selected from the group consisting of P, Ga, Al, Ni and rare earth elements, the combined amount of said modifying elements being 0.01-10.37 wt % based on total weight of said modified HZSM-5 zeolite. A reduced olefin content in gasoline from catalytic cracking process, an increased gasoline octane number and an increased lower olefin yield can be obtained using said catalytic promoter.