| 摘要 |
<p>PROCESS FOR THE HYDROTREATING OF HEAVY HYDROCARBON STREAMS of the Invention The process comprises contacting a heavy hydrocarbon stream containing metals and asphaltenes under suitable conditions and in the presence of hydrogen with a catalyst comprising a hydrogenating component comprising molybdenum and chromium, their oxides, their sulfides, or mixtures thereof on a large-pore, catalytically active alumina. The catalyst has a pore volume within the range of about 0.4 cc/gm to about 0.8 cc/gm, a surface area within the range of about 150 m2/gm to about 300 m2/gm, and an average pore diameter within the range of about 100 .ANG. (10 nm) to about 200 .ANG.(20 nm). The hydrogenating component can include cobalt and/or its oxide and/or its sulfide. The molybdenum is present in an amount within the range of about 5 wt.% to about 15 wt.%, calculated as MoO3 and based upon total catalyst weight, the chromium is present in an amount within the range of about 5 wt.% to about 20 wt.%, calculated as Cr2O3 and based upon the total catalyst weight, and the cobalt, when present, is there in an amount within the range of about 0.1 wt.% to about 5 wt.%, calculated as CoO and based upon the total catalyst weight.</p> |
