초록

A process for hydroprocessing petroleum and chemical feedstocks by use of a bulk multimetallic catalyst comprised of at least one Group VIII non-noble metal and at least one, preferably two Group VIB metal wherein the ratio of Group VIB metal to Group VIII metal is from about 10:1 to 1:10.

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The invention claimed is: 1. A process for hydroprocessing a petroleum feedstock, which feedstock contains both nitrogen and sulfur, which process comprises contacting a feedstock with a bulk multimetallic catalyst comprised of at least one Group VIII non-noble metal and at least one Group VIB meta

The invention claimed is: 1. A process for hydroprocessing a petroleum feedstock, which feedstock contains both nitrogen and sulfur, which process comprises contacting a feedstock with a bulk multimetallic catalyst comprised of at least one Group VIII non-noble metal and at least one Group VIB metals and wherein the ratio of Group VIB metal to Group VIII non-noble metal is from about 10:1 to about 1:10, provided that the bulk multimetallic catalyst is represented by the formula: description="In-line Formulae" end="lead"(X)b(Mo)c(W)dOz description="In-line Formulae" end="tail" wherein X is a Group VIII non-noble metal, the molar ratio of b:(c+d) is 0.5/1 to 3/1, and z=[2b+6(c+d)]/2, which process is performed at temperatures from about 260째 C. to about 427째 C. (500째 F. to about 800째 F.), pressures from about 791 to about 6996 kPa (100 to about 1000 psig), gas rates from about 89 to about 1780 m3/m3 (500 to about 10,000 standard cubic feet per barrel), and feed rates from about 0.1 to about 100 liquid hourly space velocity. 2. The process of claim 1 wherein the Group VIII non-noble metal is selected from Ni and Co. 3. The process of claim 1 wherein the molar ratio of c:d is >0.01/1. 4. The process of claim 1 wherein the molar ratio of b:(c+d) is 0.75/1 to 1.5/1. 5. The process of claim 1 wherein the molar ratio of c:d is 1/10 to 10/1. 6. The process of claim 1 wherein the bulk multi metallic catalyst is essentially an amorphous material having a unique X-ray diffraction pattern showing crystal line peaks at d=2.53 Angstroms and d=1.70 Angstroms. 7. The process of claim 1 wherein the feedstock is comprised of at least 50 wt. % of distillate product from an atmospheric distillation process. 8. The process of claim 1 wherein the temperature is from about 302째 C. to about 371째 C. (575째 F. to about 700째 F.). 9. The process of claim 1 wherein the pressure is from about 1480 to about 5617 kPa (200 to about 800 psig). 10. The process of claim 9 wherein the pressure is from about 2179 to about 3549 kPa (300 to about 500 psig). 11. The process of claim 1 wherein the gas rate is from about 134 to about 890 m3/m3 (750 to about 5,000 standard cubic feet per barrel). 12. The process of claim 1 wherein the feed rate is from about 0.3 to about 5.0 liquid hourly space velocity.