Combined process of hydrotreating and catalytic cracking of hydrocarbon oils

US9260667B2 · kind B2 · utility

Assignees

• CHINA PETROLEUM & CHEMICAL CORPORATION · CN
• RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC · CN

Inventors

• Yongcan Gao · Beijing, CN
• Chaogang Xie · Beijing, CN
• Chuanfeng Niu · Beijing, CN
• Jiushun Zhang · Beijing, CN
• Lishun Dai · Beijing, CN
• Hong Nie · Longbeilingcun, CN
• Dadong Li · Beijing, CN
• Jun Long · Beijing, CN
• Jianguo Ma · Beijing, CN
• Yan Cui · Beijing, CN

Key dates

• Filing date: Sep 14, 2012
• Grant date: Feb 16, 2016
• Expiry date: Sep 14, 2032

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10G2400/28
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Disclosed is a combination process for improved hydrotreating and catalytic cracking of hydrocarbon oils, including: contacting residual oil, catalytic cracking cycle oil, and optional distillate oil with a hydrotreating catalyst under hydrotreating conditions in the presence of hydrogen followed by separation of the reaction products to obtain hydrogenated tail oil and other products; contacting the hydrogenated tail oil and optional normal catalytic cracking feedstock oil with a cracking catalyst under catalytic cracking conditions followed by separation of the reaction products; wherein the hydrogenated tail oil and/or normal catalytic cracking feedstock oil are separated into at least two fractions prior to contacting the hydrogenated tail oil and/or normal catalytic cracking feedstock oil with the cracking catalyst.