Claims
- 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.
- 2. A process for treating a charge hydrocarbon containing undesired nitrogen components as claimed in claim 1 wherein said charge is a naphtha of initial boiling point of about 70.degree. F.-200.degree. F.
- 3. A process for treating a charge hydrocarbbon containing undesired nitrogen components as claimed in claim 1 wherein said charge is a middle distillate of initial boiling point of about 300.degree. F.-480.degree. F.
- 4. A process for treating a clay hydrocarbon containing undesired nitrogen as claimed in claim 1 wherein said charge is a gas oil.
- 5. The process of claim 1 wherein the charge hydrocarbon is light gas oil and the catalyst contains 12 wt % molybdenum, 5 wt % cobalt and 3 wt % chromium.
RELATED APPLICATION
This application is a continuation-in-part of application No. 08/022,216 filed Feb. 25, 1993, now abandoned.
U. S. Ser. No. 07/990,381, filed Dec. 14, 1992 by Texaco Inc. as assignee of Chakka Sudhakar et al is directed to hydrodearomatization of naphthas or middle distillates by use of, as catalyst, a chromium-promoted carbon-supported heterogeneous catalyst, the text of which is incorporated herewith by reference.
US Referenced Citations (7)
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
022216 |
Feb 1993 |
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