CATALYTIC HYDROTREATING OR HYDROCRACKING OF HYDROCARBON OILS

摘要

A process is described for catalytically hydrotreating or catalytically hydrocracking a hydrocarbon oil, preferably a heavy hydrocarbon oil, in which the oil and hydrogen are reacted under heat and pressure in the presence of a catalyst comprising at least one group IA element and at least one group VIII element on a silica, alumina or silica-alumina support. According to the novel feature, the catalyst also contains at least one group IA element, e.g. lithium, sodium or potassium, whereby deposition of carbonaceous materials on the surface of the catalyst is decreased.