WAX OIL CIRCULATING HYDROGENATION METHOD, DESIGN METHOD THEREFOR, AND USE THEREOF

摘要

A wax oil circulating hydrogenation method, a design method therefor, and a use thereof. The hydrogenation method comprises: mixing the wax oil produced by a slurry bed hydrogenation reactor with some or all raw materials to be hydrogenated or one or two catalysts to obtain raw material slurry having reduced viscosity, the raw material slurry entering the slurry bed hydrogenation reactor for circulating hydrogenation. The mass fraction of wax oil for circulating hydrogenation accounts for 4-30wt% of the raw materials to be hydrogenated, such that the kinematic viscosity of the raw material slurry is less than or equal to 750 cSt at the temperature being less than or equal to 60°C. The method is simple and convenient to operate, facilitates automated control, improves the light oil yield, improves the stability of apparatus operation, and prolongs the repair cycle of a hydrogenation-series apparatus.