Analysis and Countermeasures of Sulfur Loss in Hydrocracking Catalysts
Naphthenic crude oil has the characteristics of low sulfur,low wax content,high naphthenic hydrocarbon and aromatics content,and there is a risk of catalyst sulfur loss in hydrocracking unit when mixing naphthenic wax oil raw materials.In this paper,the operation of a domestic hydrocracking unit processing low sulfur and high nitrogen feed was analyzed,it was determined that the catalyst of the unit had a phenomenon of sulfur loss,the reason of catalyst sulfur loss was analyzed combined with XPS,and suggestions for stable operation of the unit were put forward.
Naphthenic crude oilHydrocrackingCatalyst sulfur loss
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