Citation: Ji Gang LUO, Chen Lie LI, Ming Shi LI, Yan ZHO, Xi Hui LUO. THE COKING PROPERTIES AND STATES OF AN INDUSTRIAL W-Ni USED CATALYST[J]. Chinese Chemical Letters, ;1991, 2(12): 963-966. shu

THE COKING PROPERTIES AND STATES OF AN INDUSTRIAL W-Ni USED CATALYST

a. Chemical and Technology University of East China, Shanghai, 200237;
b. Fushun Research Institute of Petroleum and Petrochemicals, Fushun, Lianing, 113001

Received Date: 18 June 1991

PASCA, ESR and Microreactor, have been used to study the states and properties of coking deposits on catalyst. The results indicate that the C exists as three types of states on catalyst surface. The first and second types of carbon are the main reason of the catalyst deactivation, but the third type has a promoting role in n-C₇ hydrocracking reaction. The S_s-C interacts strongly with catalyst, forming metal-carbon-support interaction (MCSI).
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