摘要:
Petroleum oils, especially resids boiling above 350°C, can be simultaneously hydrodesulfurized and hydrode- waxed by treating them with hydrogen under conventional hydrodesulfurization conditions in contact with a catalyst comprising an alumina, silica or silica-alumina support, a ZSM-5 type zeolite and Group VIA and/or VIII metal oxides or sulfides. Preferred catalysts 70 to 95 wt. % alumina and 5 to 30 wt. % ZSM-5 and contain 5-20 wt. % NiO and 2-10 wt. % MoO 3 .
摘要:
A solvent extract obtained from a conventional hydrocarbon solvent extraction process, for example one employing furfural as the extraction solvent, is cooled and separated by decantation to provide a pseudo-raffinate containing most of the non-aromatics and a pseudo-extract having a hydro-aromatic content of H alpha hydrogen of at least 20 percent of the total hydrogen content. The pseudo-extract is ideally suited as a hydrogen-donor for a variety of refinery operations such as visbreaking.