HYDROGENATION ACTIVITY AND COKE RESTRAINING ABILITY OF OIL-SOLUBLE CATALYSTS FOR RESIDUE SLURRY-BED HYDROCRACKING

Abstract

Abstract:

Oil-soluble Mo and Ni catalysts applied in residue slurry-bed hydrocracking have been successfully synthesized and Mo/Ni catalyst has been obtained from the mixtures of these two kinds of monometallic catalysts. FT-IR and ASS analysis were used to characterize the properties of synthesized catalysts. Compared with thermal cracking in presence of hydrogen, KLAR slurry-bed hydrocracking was carried out, after the solubility study of Mo, Ni and Mo/Ni catalysts, to evaluate the hydrogenation activity of all catalysts. The results indicated Mo content was 5.60% in Mo catalyst and Ni content was 5.86% in Ni catalyst, respectively. The order of I (light oil yield per coke) was Mo＞Mo/Ni＞Ni, which meant the order of hydrogenation activity and coke restraining ability was Mo＞Mo/Ni＞Ni. Furthermore, Mo/Ni catalysts not only played a synergistic effect in hydrogenation activity but also could act as coke carrier and prevented the coke from gathering and growing.

Key words: oil soluble catalysts, slurry-bed hydrocracking, hydrogenation activity, coke restraining ability

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