Kinetic study of hydrodesulfurization of coker gas oil in a slurry reactor

2013, Volume 7, Issue 2

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Frontiers of Chemical Science and Engineering >> 2013, Volume 7, Issue 2 doi: 10.1007/s11705-013-1323-8

Kinetic study of hydrodesulfurization of coker gas oil in a slurry reactor

Beijing Key Laboratory of Green Reaction Engineering and Technology Department of Chemical Engineering, Tsinghua University, Beijing 100084, China

Available online: 2013-06-05

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Abstract

Coker gas oil (CGO) is a poor-quality feedstock for fluidized bed catalytic cracking (FCC) or hydrocracking. The pretreatment of CGO, especially hydrotreating, can significantly improve the product quality and protect the catalyst. In this work, we studied the hydrodesulfurization (HDS) of CGO in a slurry reactor. All the experiments were carried out in an autoclave using a NiMo/Al O catalyst at reaction temperature 340°C–400°C, pressure 6–10 MPa, and stirring speed 800 r·min , with hydrogen-to-oil ratio in the range of 500–1500. The effects of the operating parameters on the desulfurization ratio were investigated and discussed. A macro reaction kinetic model was established for the HDS of CGO in the slurry reactor.

Keywords

coker gas oil ; hydrodesulfurization ; slurry reactor ; reaction kinetic model

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