Integrated process for hydrogenation and catalytic cracking of hydrocarbon oil

US9309467B2 · 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: Dec 19, 2008
• Grant date: Apr 12, 2016
• Expiry date: Dec 19, 2028

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 gas, hydrogenated naphtha, hydrogenated diesel oil, and hydrogenated tail oil; 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 to obtain dry gas, hydrogenated naphtha, liquefied petroleum gas, catalytic cracked gasoline, catalytic cracked diesel oil, and catalytic cracking cycle oil; wherein the hydrogenated tail oil and/or normal catalytic cracking feedstock oil are separated into at least two fractions, the light and the heavy fractions or normal catalytic cracking heavy feedstock oil and normal catalytic cracking light feedstock oil, prior to contacting the hydrogenated tail oil and/or normal catalytic cracking feedstock oil with the cracking catalyst. The process according to the present i…