KR920702252A - Highly Active Slurry Catalytic Method - Google Patents

Abstract

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Description

Highly Active Slurry Catalytic Method

Since this is an open matter, no full text was included.

Figure 1 shows the dust removal activity of various catalysts which are essentially pretreated at the same ammonia to molybdenum ratio but sulfided to varying degrees. 2 to 3 show the dedusting rate constant and API specific gravity increase as a function of sulfidation reactivity, respectively.

Claims (36)

(a) sulfiding an aqueous mixture of a Group VIB metal compound with a gas containing hydrogen sulfide at a capacity of hydrogen sulfide of at least about 8 SCF per pound of Group VIB metal to form a slurry; (b) mixing the slurry with a feed oil and a hydrogen-containing gas at elevated temperature and pressure to produce a dispersed Group VIB metal sulfide catalyst for hydrocarbon oil hydrogenation. The method of claim 1 wherein the hydrogen sulfide capacity is between about 8 and 14 SCF hydrogen sulfide per pound of Group VIB metal. The method of claim 1 wherein the Group VIB metal is an oxide. The method of claim 1, wherein the Group VIB metal is molybdenum. The method of claim 1 wherein the Group VIB metal compound is molybdenum oxide. The method of claim 1 wherein the Group VIB metal compound is a salt combined with ammonia. The method of claim 1 wherein the Group VIB metal compound is ammonium molybdate. The method of claim 1, wherein the Group VIB metal compound aqueous mixture is obtained by treating Group VIB metal oxide with aqueous ammonia. The method of claim 1, wherein the Group VIB metal compound aqueous mixture is obtained by treating the ribbed oxide with aqueous ammonia. The method of claim 1 wherein the elevated temperature is at least about 350 ° F. 10. The process of claim 1 wherein the slurry is in an initial gel step before mixing with the feed oil. The process of claim 1 wherein the sulfidation reaction is carried out using a gas having a partial pressure of hydrogen and the capacity of hydrogen sulfide is in the range of about 12 to about 14 SCF per pound of Group VIB metal. The process of claim 1 wherein the sulfidation reaction is carried out in the absence of hydrogen and the capacity of hydrogen sulfide is in the range of about 8 to 10 SCF per pound of Group VIB metal. (a) sulfiding an aqueous mixture of a Group VIB metal compound with a gas containing hydrogen sulfide at a capacity of hydrogen sulfide of about 8 to 14 SCF per pound of Group VIB metal to form a slurry; (b) adding a Group VIII metal compound to the slurry; (c) mixing the slurry and the Group VIII metal compound with a feed oil and a hydrogen-containing gas at elevated temperature and pressure, thereby producing a dispersed Group VIB metal sulfide catalyst for hydrocarbon oil hydrogenation. The method of claim 14, wherein the slurry is in the initial gel forming step. The method of claim 14, wherein the Group VIII metal compound is added to the slurry having a slurry pH of less than about 8. 16. The method of claim 14 wherein the Group VIII metal to Group VIB metal weight ratio is between about 1: 2 and about 1: 100. 15. The method of claim 14, wherein the Group VIB genus is molybdenum. 19. The method of claim 14, 15, 16, 17 or 18, wherein the Group VIII metal is nickel. The method of claim 14 wherein the Group VIII metal compound is a sulfate, nitrate or carbonate. The method of claim 14, 15, 16, 17, or 18, wherein the Group VIII metal is cobalt. A process for hydroprocessing said feedstock, characterized in that the heavy hydrocarbon feedstock is brought into contact with the catalyst of claim 1 at elevated temperature and pressure in the presence of hydrogen. (a) the Group VIB metal compound sulfides the aqueous mixture with a gas containing hydrogen sulfide at a capacity of hydrogen sulfide of at least 8 SCF per pound of Group VIB metal; (b) contacting the product of step (a) with the feedstock and hydrogen-containing gas at a concentration of at least 0.01% by weight of the Group VIB metal based on the weight of the heavy oil feedstock at elevated temperature and elevated pressure; (c) separating the oil boiling above about 650 ° F. from the product of step (b); (d) a method of producing lubricating oil of high viscosity index from heavy oil, characterized in that for lubricating oil of high viscosity index by desoldering the oil. The method of claim 23, wherein the heavy oil feedstock is contacted with the product of step (a) at a temperature of at least about 775 ° F. and at a partial pressure of hydrogen of about 700 to 4500 psi. A product of the lubricating oil boiling range produced according to claim 23 which has been hydrogenated prior to catalyst dewaxing. (a) sulfiding the aqueous mixture of a Group VIB metal compound with a gas containing hydrogen sulfide at a capacity of hydrogen sulfide of at least 8 SCF per pound of Group VIB metal; (b) a Group VIII metal compound is added to the product of step (a); (c) contacting the product of step (b) with the heavy oil feedstock and the hydrogen-containing gas at a concentration of Group VIB metal of at least 0.01% by weight based on the weight of the heavy oil feedstock at elevated temperature and pressure. To form; (d) separating the oil boiling above about 650 ° F. from the product of step (c); (e) a method of producing a lubricant having a high viscosity index from heavy oil, characterized in that the oil is degreased to prepare a lubricant. The method of claim 26, wherein the product of step (a) is present in an initial gel formation step. Heavy hydrocarbon oils containing metal contaminants: active catalyst slurries prepared by sulfiding an aqueous mixture of a Group VIB metal compound with a gas containing hydrogen sulfide at a capacity of at least 8SCF per pound of Group VIB metal; And introducing a hydrogen-containing gas into the fixed or fluidized bed of a hydrodesulfurization-hydrogenation demetallization catalyst at a temperature above about 700 ° F. at elevated temperatures and pressures, thereby hydrotreating heavy hydrocarbon oils containing metal contaminants. How to. Heavy hydrocarbon oils containing metal contaminants; An active catalyst slurry prepared by sulfiding an aqueous mixture of a Group VIB metal compound with a gas containing hydrogen sulfide at a capacity of hydrogen sulfide of at least 8 SCF per pound of Group VIB metal; Pore contact particles; And introducing a hydrogen-containing gas into the fixed or fluidized bed of a hydrodesulfurization-hydrogenation demetallization catalyst at a temperature of about 700 ° F. at elevated temperatures and pressures, thereby hydrogenating heavy hydrocarbon oils containing metal pollutants. How to deal. (a) In the first step, the aqueous mixture of the Group VIB metal compound is selected from the Group VIB metal for a heavy hydrocarbon oil containing the metal pollutant at a temperature sufficient for achieving a thermal cracking that can be measured in the product air stream. Contacting hydrogen with an active catalyst sulphate prepared by sulfiding with a gas containing hydrogen sulfide at a capacity of hydrogen sulfide of at least about 8 SCF per pound of; (b) in the second step, the product stream is brought into contact with hydrogen in a fixed or fluidized bed of a hydrodesulfurization-hydrodemetallization catalyst at a temperature of at least about 700 ° F. to obtain a heavy hydrocarbon oil containing metal contaminants. How to Hydrogenate. 31. The method of claim 28, 29 or 30, wherein the oil flow rises through the stationary phase. 31. The method of claim 28, 29 or 30, wherein the heavy oil has a 100 ° F. + fraction conversion of less than 50%, a demetallization percentage of nickel or vanadium of at least 30% and a slurry catalyst concentration in the heavy oil of about 100. To 10,000 ppm. 31. The process of claim 28, 29 or 30 wherein the heavy oil has a 1000 ° F. + fraction conversion of at least 50% and a coke yield of less than about 2.5% when the slurry catalyst concentration in the heavy oil is between about 100 and 10,000 ppm. 33. The method of claim 31 or 32, wherein the slurry catalyst concentration is less than about 550 ppm. 33. The method of claim 31 or 32, wherein the slurry catalyst concentration is less than about 200 ppm. 31. The method of claim 28, 29 or 30, wherein the Group VIII metal compound is added to the slurry. ※ Note: The disclosure is based on the initial application.