Abstract:
HYDROCARBON LUBRICATING OIL RESISTANT TO DETERIORATION UPON EXPOSURE TO LIGHT AND AIR IS FORMED BY CONTACTING SELECTED HIGH BOILING HYDROCARBONS WITH A HYDROCRACKING CATALYST AND HYDROGEN, SEPARATING A LUBRICATING OIL FRACTION FROM THE PRODUCT AND EXTRACTING THE FRACTION IN MULTIPLE STAGE WITH A SOLVENT SELECTIVE FOR CYCLIC HYDROCARBONS.
Abstract:
A process is described for producing gasoline from a paraffinic hydrocarbon feed wherein the feed is catalytically cracked and then reformed. In the process a novel porous hydrocracking catalyst composite is employed. This catalyst comprises a silica-alumina cracking base component and a noble metal hydrogenation component. It is stabilized as a result of a unique method used for introducing the noble metal in the form of a highly dispersed gravimetric precipitate into a gelatinous silica-alumina cogel precursor of the cracking base component. An organic gravimetric reagent is used for the precipitation. The resulting crackate is reformed by ordinary methods.
Abstract:
Process for producing low density low-sulfur crude oil as feedstock to refinery processes in which a high density, starting crude oil is divided into a base stream and a dilution stream. The dilution stream is separated into a straight run light fraction, at least a medium fraction and an asphaltic residue. At least the medium fraction is subjected to hydrocracking. The hydrocracked fraction and the light fraction are mixed with the base stream and a crude oil of low density and low sulfur content is recovered.
Abstract:
High quality UV stable lubricating oil stocks are prepared by hydrocracking a hydrocarbon feedstock under mild hydrocracking conditions to increase the viscosity index of the feedstock. The hydrocrackate product is subsequently solvent-extracted with a solvent having preferential solubility for aromatics, thereby forming extract and raffinate phases. The extract phase is stripped of solvent, and at least a portion of the substantially solvent-free extract phase is recycled to the hydrocracking step.
Abstract:
AN INTEGRATED PROCESS IS DISCLOSED, COMPRISING CATALYTICALLY CRACKING A HYDROCARBON FEEDSTOCK IN A CATALYTIC CRACKING ZONE; PASSING THE GAS OIL PORTION OF THE EFFLUENT FROM THE CATALYTIC CRACKING ZONE TO A HYDROTREATING ZONE; REGENERATING THE CATALYTIC CRACKING CATALYST USED IN THE CATALYTIC CRACKING ZONE BY BURNING CARBONACEOUS DEPOSITS THEREFROM, THEREBY PRODUCING HEAT; HEATING WATER TO PRODUCE STEAM USING THIS HEAT; PRODUCING HYDROGEN FROM THIS STEAM; PASSING AT LEAST A PORTION OF THE HYDROGEN FORMED TO THE HYDROTREATING ZONE; AND CATALYTICALLY HYDROTREATING THE GAS OIL PORTION IN THE HYDROTREATING ZONE. ALTERNATIVELY, THE HYDROGEN CAN BE PRODUCED BY REACTING THE CARBONACEOUS DEPOSITS ON THE CATALYTIC CRACKING CATALYST WITH STEAM.
Abstract:
Olefins, e.g., ethylene and propylene, are produced by hydrogenating a petroleum distillate feedstock, e.g., a petroleum vacuum distillate feedstock (b. pt. 300* - 650*C), over a catalyst containing combinations of Ni, Mo, Co and Won SiO2/Al2O3 bases, preferably Ni/W/SiO2/Al2O3, under reaction conditions such that a substantial quantity of aromatics in the feedstock are hydrogenated. The whole product of hydrogenation is then thermally cracked in the presence of steam, producing an increased yield of gaseous olefin products.