Patent ID: 8163169

Claim:
A process for hydroprocessing a hydrocarbonaceous feedstock, the process comprising: contacting the high-boiling hydrocarbon feedstock with an unsupported catalyst prepared by drying at a temperature of 200° C. or less, then sulfidizing an unsupported hydroxide catalyst precursor composition of the formula A v [(M VIII ) (OH) x (L) n y ] z (M VIB O 4 ), wherein M VIII is at least a Group VIII metal, and M VIII has an oxidation state of +2, L is at least one organic oxygen containing ligand, and L has a charge n<=0, M VIB is at least a Group VIB metal, M VIB has an oxidation state of +6, M VIII :M VIB has an atomic ratio of 100:1 to 1:100, A is at least one of an alkali metal cation, an ammonium, an organic ammonium and a phosphonium cation, (v−2+2 z−x*z+n*y*z) is 0, and 0<y≦−2/n; 0<x≦2; 0<v≦2; 0<z, wherein the hydroxide catalyst precursor has an X-ray diffraction pattern which is amorphous with broad peaks or an X-ray diffraction pattern with at least a crystalline peak at Bragg angle between 52.7° to 53.2° theta; wherein the contacting is in a reaction zone having process parameters of: temperature from 395 to 842° F. (200 to 450° C.), hydrogen partial pressure of 600 psig or less, liquid hourly space velocities from 0.05 to 10 h −1 , and a hydrogen rate of 200 to 15000 SCF/B, for a nitrogen removal of at least 70%.