Catalytic conversion process for producing isobutane and isoparaffin-enriched gasoline

US6495028B1 · kind B1 · utility

Assignees

• China Petroleum Corporation · CN
• RESEARCH INSTITUTE OF PETROLEUM PROCESSING · CN

Inventors

• Youhao Xu · Beijing, CN
• Jiushun Zhang · Beijing, CN
• Yinan Yang · Beijing, CN
• Jun Long · Beijing, CN
• Xieqing Wang · Beijing, CN
• Zaiting Li · Beijing, CN
• Raichi Zhang · Beijing, CN

Key dates

• Filing date: Apr 21, 2000
• Grant date: Dec 17, 2002
• Expiry date: Apr 21, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10G11/18
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A process for catalytic conversion of hydrocarbon feedstock to produce isobutane and isoparaffin-enriched gasoline which comprises two different reactions, the preheated feedstock is contacted with hot regenerated catalyst in the lower part of a reactor with the result that catalytic cracking reaction takes place, and the mixture of vapors and the coke deposited catalyst are up-flowed and enter into a suitable reaction environment with the result that isomerization and hydrogen transfer reaction take place. The produced LPG has an isobutane content of about 20 wt % to about 40 wt % and the produced gasoline contains isoparaffin content of about 30 wt % to about 45 wt % and olefin content of less than 30 wt %. RON and MON of the gasoline are 90˜93 and 80˜84 respectively.