To slurry in the hydrogenation isomerization manner in order to convert the paraffin supply raw materials

摘要

PROBLEM TO BE SOLVED: To provide a hydroisomerization method intended to produce a fraction having favorable low-temperature flow properties in high yield. ;SOLUTION: A≥5C paraffin-based feedstock (esp. Fischer-Tropsch wax) and hydrogen are brought into contact, under hydroisomerization conditions, with such a catalyst that group IB metal, group VIB metal, group VIIIB metal, or a mixture of at least two of these metals are borne on silica alumina in the form of acidic granular solid slurried in a paraffin-based liquid to effect conversion into a medium distillation fraction, thus accomplishing the objective hydroisomerization. The catalyst particles are dispersed in the slurry in a concentration of 10 (pref. 25)wt.%, the average particle diameter being about 30-150μm (pref. about 40-60μm).;COPYRIGHT: (C)1997,JPO