초록

A naphtha or a middle distillate hydrocarbon is hydrodenitrogenized by hydrotreating in the presence of a catalyst containing a carbon support bearing (i) molybdenum or tungsten, (ii) a metal of non-noble Group VIII, and (iii) chromium.

대표청구항 ▼

[ What is claimed:] [1.] A process for treating a charge hydrocarbon characterized by an initial boiling point of from about 70.degree. F. to 700.degree. F., and containing undesired nitrogen and sulfur which comprises maintaining a bed of sulfided carbon-supported catalyst containing:(i) at least o

[ What is claimed:] [1.] A process for treating a charge hydrocarbon characterized by an initial boiling point of from about 70.degree. F. to 700.degree. F., and containing undesired nitrogen and sulfur which comprises maintaining a bed of sulfided carbon-supported catalyst containing:(i) at least one metal selected from 10-40 wt % tungsten or 5-18 wt % molybdenum; and(ii) 3-12 wt % of a non-noble Group VIII metal; and(iii) 1-10 wt % chromium,(iv) wherein the metals are loaded onto the carbon support from aqueous solutions of salts of the elements, and(v) wherein the carbon support has a B.E.T. surface area in the range of 600 m.sup.2 /g to 2000 m.sup.2 /g, a total pore volume for nitrogen of at least 0.4 cc/g, and an average pore diameter by nitrogen adsorption, defined as Average Pore Diameter (Angstroms): ]EQU2 ] of between 16 and 50 Angstroms, passing said charge hydrocarbon in the presence of hydrogen, at a hydrogen feed rate of 200-5000 SCFB into contact with said sulfided catalyst defined above at hydrotreating conditions, including a temperature of 570.degree. F.-720.degree. F. and a pressure of 400-1500 psig, thereby effecting hydrodenitrogenation and hydrodesulfurization of said charge hydrocarbon containing undesired nitrogen and sulfur and forming a product stream of hydrocarbon containing a lesser quantity of undesired nitrogen and sulfur, and recovering said product stream of hydrocarbon containing a lesser quantity of undesired nitrogen and sulfur.