| 摘要 |
<p>Heavy oils may be hydrotreated in the presence of a porous alumina support bearing metals of Group VIII and VI-B and optionally phosphorus, the catalyst having a Total Surface Area of 165-230 m<2> /g, a Total Pore Volume of 0.5-0.8 cc.g, and a Pore Diameter Distribution whereby less than about 5% of the Total Pore Volume is present as primary micropores of diameter less than 80A, and secondary micropores of diameter of +/- 20A of a Pore Mode of 100-135A are present in amount of at least about 65% of the micropore volume having pores with diameter less than 250A, and 22-29% of the Total Pore volume is present as macropores of diameter >250A.</p> |
