Abstract:
A catalytic composition consisting essentially of an amorphous silica-alumina support having dispersed therein ultrastable, large-pore, substantially metal cation free, crystalline aluminosilicate material, a metal of Group VIA, and at least one metal of Group VIII of the Periodic Table of elements. A method of preparing this catalytic composition which comprises adding ions of the metals to a silica-alumina sol, adjusting the pH of the composition, precipitating the sulfides of the metals, adding finely divided aluminosilicate material, drying, and calcining the resultant mixture. A hydrocarbon-conversion process employing this catalytic composition, particularly a process for hydrocracking nitrogen-contaminated hydrocarbon fluids.
Abstract:
The catalyst comprises the oxides of cobalt and molybdenum deposited on a co-catalytic acidic cracking support comprising ultrastable, large-pore crystalline aluminosilicate material and a silica-alumina cracking catalyst. This catalyst may be used in a hydrocracking process or a combination process for converting petroleum hydrocarbons to gasoline blending stock having an unleaded research octane number greater than about 105. The hydrocracking process comprises contacting the catalyst in a hydrocracking reaction zone under hydrocracking conditions with a feedstock having an initial boiling point of at least 350* F. The combination process comprises treating the hydrocarbons in the hydrocracking process, selectively solvent-extracting the aromatics from the resultant hydrocracked product to obtain an aromatic extract and a non-aromatic raffinate, catalytically reforming the non-aromatic raffinate, and blending the resultant catalytic reformate with aromatic extract.
Abstract:
ALUMINA. THE SECOND CATALYST MAY CONTAIN ALSO A SMALL AMOUNT OF RHENIUM. THE FIRST REFORMATE SHOULD POSSESS A PARAFFINS-TO-NAPHTHENES RATIO OF AT LEAST 5 TO 1. A PETROLEUM HYDROCARBON FRACTION IS CONTACTED IN A FIRST REFORMING ZONE WITH A FIRST CATALYST COMPRISING A GROUP VIII NOBLE METAL, A HALIDE, AND ALUMINA TO PRODUCE A FIRST REFORMATE, WHICH IS SUBSEQUENTLY CONTACTED IN A SECOND REFORMING ZONE WITH A SECOND CATALYST COMPRISING THE OXIDES OF CHROMIUM, A MEMBER SELECTED FROM THE GROUP CONSISTING OF AN OXIDE, OF AN ALKALI METAL, AN OXIDE OF AN ALKALINE EARTH METAL, AND MIXTURES THEREOF, AND
Abstract:
THIS INVENTION CONCERNS A HYDROCRACKING CATALYST INCLUDING AN ULTRATABLE MOLECULAR SIEVE IMPREGNATED WITH A PLATINUM ERIES METAL. THE SIEVE IS CHARACTERIZED BY (A) A MAXIMUM CUBIC CELL DIMENSION OF ABOUT 24.55 A., (B) AND 3625 CM.-18 AND (C) AN ALKALI METAL CONTENT OF LESS THAN ABOUT 1 WEIGHT PERCENT. THIS IMPREGNATED SIEVE IS DISPERSED IN A SILICA-ALUMINA MATRIX, AND THE SIEVE-MATRIX MIX IS IMPREGNATED WITH AN OXIDE OF A METAL, SULFIDE OF A METAL, OR A METAL IN GROUP VI OR VIII OF THE PERIODIC TABLE OTHER THAN THE PLATINUM SERIES METALS.
Abstract:
A process for hydrotreating a hydrocarbon stream to remove nitrogen and sulfur which process comprises contacting a hydrocarbon stream comprising a stream selected from petroleum distillate, tar sands distillate, and shale oil, with hydrogen and a catalyst comprising a porous refractory inorganic oxide and deposited thereon hydrogenation components comprising chromium, molybdenum and at least one Group VIII metal, said catalyst having a pore volume distribution comprising 20-50% of pore volume in pores with diameters of 0-50 Angstrom units, 30-70% of pore volume in pores with diameters of 50-100 Angstrom units, 0-20% of pore volume in pores with diameters of 100-150 Angstrom units, and 0-10% of pore volume in pores with diameters greater than 150 Angstrom units.
Abstract:
LARGE-PORE HYDRODEMETALLIZATION CATALYST AND PROCESS EMPLOYING SAME of the Invention There is disclosed a catalyst for the hydrodemetallization of petroleum hydrocarbon streams containing asphaltenes and large quantities of metals. This catalyst consists essentially of a small amount of a single hydrogenation metal selected from the group consisting of metals from Group VIB of the Periodic Table of Elements and metals from Group VIII of the Periodic Table deposed on a large-pore alumina. The hydrogenation metal may be present in the elemental form, as an oxide, as a sulfide, or mixtures thereof. The catalyst is characterized by a surface area of at least 120 square meters per gram, a pore volume of at least 0.7 cc per gram, and an average pore diameter of at least 125 Angstrom units. Suitable examples of a hydrogenation metal are nickel and molybdenum. Also disclosed is a process for the hydrodemetallization of a hydrocarbon stream containing asphaltenes and a substantial amount of metals, which process comprises contacting said hydrocarbon stream in a reaction zone under suitable operating conditions and in the presence of hydrogen with the catalyst described hereinabove.
Abstract:
A catalyst support is prepared from a composite comprising two or more inorganic oxides by forming the composite into a shaped support material having at least 0.8 cc/gm of its pore volume in pore diameters of 0 nm (0 .ANG.) to 120 nm (1,200 .ANG.) and at least 0.1 cc/gm of its pore volume in pore diameters of 120 nm (1,200 .ANG.) to 5,000 nm (50,000 .ANG.) and heating said shaped support material in the presence of steam at sufficient elevated temperature, steam pressure, and time period to increase the average pore diameter of said shaped support in the absence of any appreciable reduction in pore volume. A catalyst is prepared by impregnating the steam-treated support with at least one hydrogenating metal. The catalyst can be used suitably in hydrocarbon conversion processes, such as a process for the hydrodemetallization of a hydrocarbon stream containing asphaltenes and a substantial amount of metals.
Abstract:
CATALYST AND PROCESS FOR THE HYDROTREATING OF NITROGEN-CONTAINING FEEDS There are disclosed a catalyst and a process for the hydrodenitrogenation of a hydrocarbon stream containing a substantial amount of nitrogen compounds, such as whole shale oil. The catalyst comprises a hydrogenation component comprising chromium, molybdenum, and at least one Group VIII metal deposed upon a porous alumina-silica support, the silica of said support being present in an amount within the range of about 10 wt% to about 50 wt%, based upon the weight of said support. The process comprises contacting the hydrocarbon stream under hydrodenitrogenation conditions and in the presence of hydrogen with the aforesaid catalyst.
Abstract:
There are disclosed a novel catalyst and a process employing that catalyst. The catalyst comprises a hydrogenation component comprising chromium, molybdenum, and at least one metal of Group VIII, a crystalline molecular sieve zeolite having pore diameters of at least 5 A (0.5 nm) and containing exchangeable cations, and a porous refractory inorganic oxide. Faujasite-type crystalline alluminosilicates, mordenite-type crystalline aluminosilicates, ZSM-type crystalline aluminosilicates, and AMS crystalline metallosilicates are suitable zeolites. The process comprises contacting a hydrocarbon stream containing a substantial amount of nitrogen under hydrotreating (hydrodenitrogenation and hydrocracking) conditions and in the presence of hydrogen with the aforesaid catalyst.