Process and system for upgrading low-quality oils

US11078434B2 · kind B2 · utility

Assignees

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

Inventors

• Jun Long · Beijing, CN
• Huandi HOU · Beijing, CN
• Zijun Wang · Beijing, CN
• Haiping SHEN · Beijing, CN
• Ming DONG · Nanjing, CN
• Lishun Dai · Beijing, CN
• Jianhong Gong · Beijing, CN
• Jiguang Li · Tsukuba, JP
• Shuhong Zhang · Beijing, CN
• Cuihong Wang · Beijing, CN
• Yucheng She · Beijing, CN
• Yuzhang Wang · Shanghai, CN
• Mengying TAO · Beijing, CN

Key dates

• Filing date: Sep 11, 2017
• Grant date: Aug 3, 2021
• Expiry date: Sep 11, 2037

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10G2400/08
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Disclosed is a process and system for upgrading low-quality oils. The upgrading process comprises: (1) subjecting a low-quality oil to a conversion reaction in the presence of hydrogen and optionally in the presence of a conversion catalyst to obtain a conversion product, (2) processing the conversion product to obtain a first processed product, wherein the first processed product comprises a specific amount of a special component, and (3) subjecting the first processed product to extraction separation to obtain an upgraded oil and a pitch. The upgrading process and the upgrading system have the advantages of stable operation, high upgrading efficiency, environmental friendliness, low coke yield or high yield of upgraded oil.