Method for preparing hydrorefining catalyst

US8785345B2 · kind B2 · utility

Assignee

• PetroChina Company Limited · CN

Inventors

• Shunqin Liang · Nanba, CN
• Wei Xie · Town of East Hartford, US
• Zongbao Wang · Zhejiang, CN
• Huifeng Xue · Yaoundé, CM
• Guangbi Gong · Nanba, CN
• Tinghai Wang · Shanghai, CN
• Jie Wu · Freeport, US
• Limin Sun · Copley, US
• Hongmin Kang · Nanba, CN
• Dehua Huang · Beijing, CN
• Shufeng Wang · Xi'an, CN
• Yundi Zheng · Nanba, CN
• Cailan Jiang · Nanba, CN
• Longgang Lv · Huangyang, CN

Key dates

• Filing date: Aug 24, 2012
• Grant date: Jul 22, 2014
• Expiry date: Aug 24, 2032

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10G2300/1037
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A method for preparing hydrorefining catalyst comprises the following steps: (1) mixing an aqueous ammonia solution with a polyamine complexing agent to form a mixed solvent; (2) adding a cobalt salt to the mixed solvent, dissolving the cobalt salt, and then adding a molybdenum salt and optional salts of other active components, and dissolving them to prepare an impregnating solution; and (3) impregnating a support with the impregnating solution, followed by aging, drying, and activating the impregnated support to form a hydrorefining catalyst. The hydrorefining catalyst prepared by this method has good activity, selectivity and stability in use.