Claims
- 1. A method for the hydrodenitrogenation of a hydrocarbon feed containing a substantial amount of nitrogen compounds, which method comprises contacting said feed in a reaction zone under hydrodenitrogenation conditions comprising a temperature within the range of about 500.degree. F. to about 850.degree. F., a total pressure within the range of about 450 to about 3500 pounds per square inch gauge, a liquid hourly space velocity ranging from about 0.05 to about 5.0 (hr.sup.-1), and a hydrogen partial pressure ranging from about 350 to about 3200 pounds per square inch gauge, in the presence of hydrogen and with a catalyst prepared by the method comprising:
- (a) peptizing alumina with an aqueous acidic solution containing a soluble Group IVB metal compound, and a soluble Group VIII metal compound;
- (b) neutralizing said aqueous acidic solution containing the peptized alumina with an aqueous solution containing a basic compound and a soluble Group VIB metal compound while mulling; and
- (c) shaping, drying and calcining the catalyst particles; and
- collecting an effluent with reduced nitrogen levels.
- 2. A method for the hydrodenitrogenation of a hydrocarbon feed containing a substantial amount of nitrogen compounds, which method comprises contacting said feed in a reaction zone under hydrodenitrogenation conditions comprising a temperature within the range of about 500.degree. F. to about 850.degree. F., a total pressure within the range of about 450 to about 3500 pounds per square inch gauge, a liquid hourly space velocity ranging from about 0.05 to about 5.0 (hr.sup.-1), and a hydrogen partial pressure ranging from about 350 to about 3200 pounds per square inch gauge, in the presence of hydrogen and with a catalyst prepared by the method comprising:
- (a) peptizing alumina with an aqueous acidic solution containing a soluble Group IVB metal compound;
- (b) adding a Group VIII metal compound which is soluble in said aqueous acidic solution;
- (c) neutralizing said aqueous acidic mixture containing the peptized alumina with a basic compound;
- (d) adding a soluble Group VIB metal compound while mixing; and
- (e) shaping, drying, and calcining the catalyst particles; and
- collecting an effluent with reduced nitrogen levels.
- 3. The method of claim 1 or 2 wherein said aqueous acidic solution contains an acid selected from the group consisting of nitric acid, sulfuric acid, formic acid, acetic acid, oxalic acid and hydrochloric acid.
- 4. The method of claim 1 or 2 wherein the pH of the aqueous acidic solution is less than 3.
- 5. The method of claim 1 or 2 wherein Group VIII metal compound contains nickel.
- 6. The method of claim 5 wherein said Group VIII metal compound is selected from the group consisting of nickel acetate, nickel nitrate, nickel sulfate, nickel oxide, nickel chloride, nickel hydroxide, nickel carbonate and mixtures thereof.
- 7. The method of claim 1 or 2 wherein said Group VIB metal compound contains molybdenum.
- 8. The method of claim 7 wherein said Group VIB metal compound is selected from the group consisting of ammonium molybdate, ammonium compounds of molybdenum oxides, molybdenum oxides and their hydrogen peroxide solutions.
- 9. A method for the hydrodenitrogenation of a hydrocarbon feed containing a substantial amount of nitrogen compounds, which method comprises contacting said feed in a reaction zone under hydrodenitrogenation conditions comprising a temperature within the range of about 500.degree. F. to about 850.degree. F., a total pressure within the range of about 450 to about 3,500 pounds per square inch gauge, a liquid hourly space velocity ranging from about 0.05 to about 5.0 (hr..sup.-1), and a hydrogen partial pressure ranging from about 350 to about 3200 pounds per square inch gauge, in the presence of hydrogen and with a catalyst prepared by the method comprising:
- (a) a peptizing alumina with an aqueous acidic solution having a pH of less than 3, containing a soluble titanium compound and a soluble nickel compound;
- (b) neutralizing said peptized alumina with an aqueous solution of a nitrogen containing base having a soluble molybdenum compound dissolved therein; and
- (c) shaping, drying and calcining the catalyst particles; and
- collecting an effluent with reduced nitrogen levels.
- 10. The method of claim 9 wherein the titanium compound is selected from the group consisting of titanium tetrachloride and titanium trichloride.
- 11. The method of claim 1, 2, or 9 wherein the catalyst particles, after calcining, are impregnated with a phosphorous-containing compound.
- 12. The method of claim 11 wherein said phosphorous-containing compound is selected from the group consisting of phosphoric acid, ammonium phosphate, and phosphomolybdic acid.
- 13. The method of claim 1, 2 or 9 wherein said conditions comprise a temperature within the range of about 550.degree. F. to about 800.degree. F.; a total pressure within the range of range of about 600 to about 2800 pounds per square inch gauge; a liquid hourly space velocity ranging from about 0.1 to about 3.0 (hr..sup.-1); and a hydrogen partial pressure ranging from about 500 to about 2500 pounds per square inch gauge.
- 14. The method of claim 1, 2 or 9 which further reduces the Ramsbottom Carbon Residue of the hydrocarbon feed.
- 15. The method of claim 1, 2 or 9 which further reduces the sulfur content of the hydrocarbon feed.
Parent Case Info
This application is a divisional of U.S. application Ser. No. 07/543,005 filed Jun. 25, 1900, now is U.S. Pat. No. 5,089,453.
US Referenced Citations (7)
Divisions (1)
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Number |
Date |
Country |
Parent |
543005 |
Jun 1990 |
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