Synthesis and characterization of dispersed catalyst used in heavy oil hydrocracking

PETR 21

Huan-nian Jin, jinhn@petrochina.com.cn, Chemistry and Chemical engineering technology, State key laboratory for heavy oil processing, China university of petroleum(east China), Shandong, Dongying 257061,China, China, Dong Liu, ldongupc@vip.sina.com, State key laboratory for heavy oil processing,College of Chemistry and Chemical Engineering, China University of Petroleum, Dongying, Shandong, 257061, China, Shu-yi Zhang, State key laboratory for heavy oil processing, China university of petroleum, Dongying, China), State key laboratory for heavy oil processing, China university of petroleum, China), Dongying, 257061, China, Hongyu Zhang, daniel2001@sina.com.cn, State Key Laboratory of Heavy Oil Processing, College of Chemistry & Chemical Engineering, University of Petroleum, Dongying, Shandong 257061, China, and Guohe Que, State key laboratory of heavy oil processing, College of Chemistry & Chemical Engineering, China University of Petroleum, No.271,Bei'er Road, 257061,Dongying,Shandong, China.
During the slurry phase hydrocracking of VGO from KELAMAYI, the catalyst is separated from the products and being analyzed by using XRD, and the crystal structure of the catalyst is identified. And in this paper, the catalysis of molybdenum, nickel and iron is studied respectively during slurry phase hydrocracking Diphenylmethane as the model compound and VGO from KELAMAYI as the reactant. The results show that, during the slurry phase of heavy oil hydrocracking, the catalyst of metal sulfide reacts on the chemical reactions and the free-radical intermediate H• is formed on the surface of the catalyst. The free-radical intermediate H• formed on the catalyst surface can react with the free-radical of big molecular and restrain the forming of coke during the reaction.