Abstract: A catalytic hydrocracking process wherein a denitrification and desulfurization reaction zone effluent is heat-exchanged with a hydrogen-rich gaseous stream and introduced into a hydrocracking zone. The resulting effluent from the hydrocracking zone is passed directly without cooling into a hot, high-pressure stripper utilizing a hot, hydrogen-rich gaseous stream at least a portion of which is heated during the heat exchange with the denitrification and desulfurization reaction zone effluent. The stripper overhead is partially condensed to produce a hydrogen-rich gaseous stream and a liquid stream containing hydrocracked hydrocarbon compounds. At least a portion of the stripper bottoms is recycled to the denitrification and desulfurization reaction zone.

Abstract: A process for the desulfurization of hydrocarbonaceous oil wherein the hydrocarbonaceous oil is contacted with a hydrodesulfurization catalyst in a hydrodesulfurization reaction zone to reduce the sulfur level to a relatively low level and then contacting the resulting hydrocarbonaceous stream from the hydrodesulfurization zone with an oxidizing agent to convert the residual, low level of sulfur compounds into sulfur-oxidated compounds. The resulting hydrocarbonaceous oil stream containing the sulfur-oxidated compounds is separated after decomposing any residual oxidizing agent to produce a stream containing the sulfur-oxidated compounds and a hydrocarbonaceous oil stream having a reduced concentration of sulfur-oxidated compounds.

Abstract: A hydrocracking process wherein a hydrocarbonaceous feedstock and a hot hydrocracking zone effluent containing hydrogen is passed to a denitrification and desulfurization reaction zone to produce hydrogen sulfide and ammonia to thereby clean up the fresh feedstock. The resulting hot, uncooled effluent from the denitrification and desulfurization zone is hydrogen stripped in a stripping zone maintained at essentially the same pressure as the preceding reaction zone with a hydrogen-rich gaseous stream to produce a vapor stream comprising hydrogen, hydrocarbonaceous compounds boiling at a temperature below the boiling range of the fresh feedstock, hydrogen sulfide and ammonia, and a liquid hydrocarbonaceous stream.

Abstract: A process to provide a multiplicity of hydrocracking reaction zones containing hydrocracking catalyst wherein the catalyst is rejuvenated or reactivated while the process unit remains on-stream by the periodic exposure of partially spent catalyst to hot recycle gas containing hydrogen. The hydrocracking catalyst always operates at "near" fresh activity and selectivity thereby resulting in more stable temperature, yield and product quality performance.

Abstract: A catalytic hydrocracking process wherein a hydrocarbonaceous feedstock and a liquid recycle stream having a temperature greater than about 500.degree. F. and saturated with hydrogen is contacted with hydrogen and a metal promoted hydrocracking catalyst in a hydrocracking reaction zone at elevated temperature and pressure to obtain conversion to lower boiling hydrocarbons. The resulting hot, uncooled effluent from the hydrocracking reaction zone is hydrogen stripped in a stripping zone maintained at essentially the same pressure as the hydrocracking zone to produce a first gaseous hydrocarbonaceous stream and a first liquid hydrocarbonaceous stream. At least a portion of the first gaseous hydrocarbonaceous stream is condensed to produce a second liquid hydrocarbonaceous stream and a second hydrogen-rich gaseous stream. At least a portion of the first liquid hydrocarbonaceous stream is recycled to the hydrocracking reaction zone.

Abstract: A process for the conversion of plastic to produce a synthetic crude oil by means of separating a liquefied plastic into a lower boiling fraction and a higher boiling fraction containing non-distillable particulate matter which is admixed with a hydrocarbonaceous recycle stream and filtered. The filtered stream having a reduced concentration of finely divided particulate matter and the distillable lower boiling stream together with hydrogen is contacted with a hydro-demetallization catalyst in a hydro-demetallization zone. The effluent from the hydro-demetallization zone is contacted with a hydrocracking catalyst in a hydrocracking zone to produce lower boiling hydrocarbons suitable for use as a synthetic crude oil and to produce gaseous, water-soluble inorganic compounds. A recovered hydrogen-rich gaseous stream is preferably recycled to the hydro-demetallization zone. The gaseous, water-soluble inorganic compounds are removed by scrubbing the hydrocracking zone effluent with an aqueous stream.

Abstract: A process for the simultaneous production of lubricating blending stocks by means of hydrocracking a hydrocarbon feedstock in a first hydrocracking zone to convert at least a portion of the heavy hydrocarbon feedstock to produce an effluent stream containing lube oil boiling range hydrocarbons. One portion of the effluent stream is directly removed from the first hydrocracking zone to produce high quality lube oil blending stocks. Another portion of the effluent stream from the first hydrocracking zone is directly introduced into a second hydrocracking zone without intermediate separation. The second hydrocracking zone is utilized to further crack the feed to produce motor fuel.

Abstract: A hydrocracking process wherein a hydrocarbonaceous feedstock and a hot hydrocracking zone effluent containing hydrogen is passed to a denitrification and desulfurization reaction zone to produce hydrogen sulfide and ammonia to thereby clean up the fresh feedstock. The resulting hot, uncooled effluent from the denitrification and desulfurization zone is hydrogen stripped in a stripping zone maintained at essentially the same pressure as the preceding reaction zone with a hydrogen-rich gaseous stream to produce a vapor stream comprising hydrogen, hydrocarbonaceous compounds boiling at a temperature below the boiling range of the fresh feedstock, hydrogen sulfide and ammonia, and a liquid hydrocarbonaceous stream.

Abstract: A process for the conversion of plastic to produce a synthetic crude oil by means of contacting the plastic with a hydrocarbonaceous recycle stream in a liquefying zone operated at liquefying conditions to produce a liquefied stream of plastic containing non-distillable particulate matter and at least a portion thereof is filtered. The filtered stream having a reduced concentration of finely divided particulate matter and the balance, if any, of the original liquefied stream together with hydrogen is contacted with a hydro-demetallization catalyst in a hydro-demetallization zone at hydro-demetallization conditions to produce gaseous, water-soluble inorganic compounds. The effluent from the hydro-demetallization zone is contacted with a hydrocracking catalyst in a hydrocracking zone to produce lower boiling hydrocarbons suitable for use as a synthetic crude oil. A recovered hydrogen-rich gaseous stream is preferably recycled to the hydro-demetallization zone.

Abstract: A process for the continuous oligomerization of ethylene to produce linear alpha olefins by oligomerizing ethylene in a polar phase comprising a solution of transition metal catalyst system at oligomerization conditions including a temperature and pressure greater than the critical temperature and pressure of ethylene. The resulting hydrocarbon phase containing oligomers and unreacted ethylene is subjected to physical treatment which tends to render the ethylene a nonsolvent for oligomers and thereby produce a liquid stream rich in unreacted ethylene which may be recycled to the oligomerization reaction zone by pumping.

Abstract: A dispensing apparatus for particulate matter which distributes the particulate matter, at substantially the same rate, uniformly across a given area of a vessel and comprises a particle container having an opening at one end for receiving particulate material into an upwardly directed end and an outlet end at an opposite end for flowing particulate material. A rotor having multiple elongated, hollow arms, an opening at one end for receiving particulate material from the particle container, the multiple arms each having at least one aperture located in a lower portion thereof for discharging particulate material, wherein the rotor is rotatably positioned below and adjacent to the outlet end of the particle container to permit the flow of particulate material from the particle container to the rotor.

Abstract: A process for the removal of trace quantities of polynuclear aromatic compounds from the vapor effluent of a hydrocarbon dehydrogenation zone containing normally gaseous olefinic hydrocarbons, trace mononuclear aromatic compounds and trace polynuclear aromatic compounds by contacting the vapor effluent of a hydrocarbon dehydrogenation zone with a lean liquid absorption stream comprising at least one alkylated mononuclear aromatic compound to absorb at least a portion of the trace mononuclear aromatic compounds and the trace polynuclear aromatic compounds to produce a rich liquid absorption stream and a gaseous olefin-containing hydrocarbon stream having a reduced concentration of mononuclear aromatic compounds and polynuclear aromatic compounds. The rich liquid absorption stream is separated to produce a stream rich in mononuclear aromatic compounds, a stream rich in alkylated mononuclear aromatic compounds and a stream comprising polynuclear aromatic compounds.

Abstract: A hydroprocess catalyzed by a catalyst composition comprising a porous refractory oxide, a molybdenum component, a phosphorus component and an underbedded nickel component, the composition characterized by a Raman spectrum comprising at least one Raman band in each of the regions of (1) about 240 cm.sup.-1 to about 250 cm.sup.-1, and (2) about 595 cm.sup.-1 to about 605 cm.sup.-1. The catalyst is prepared by sequential incorporation of the nickel metal followed by the additional catalytic promoters including a molybdenum component and a phosphorus component.

Abstract: A process for the simultaneous conversion of waste lubricating oil and pyrolysis oil derived from organic waste to produce a synthetic crude oil by means of contacting the combined feed with a hot hydrogen-rich gaseous stream to increase the temperature of the combined feed to vaporize at least a portion of the distillable organic compounds contained therein which is immediately hydrogenated in a hydrogenation reaction zone. The resulting effluent from the hydrogenation reaction zone is then introduced into a hydroprocessing zone to produce higher hydrogen-content hydrocarbons and to remove heterogeneous components such as sulfur, oxygen, nitrogen and halide, for example. The resulting effluent is cooled and partially condensed to produce a gaseous stream containing hydrogen and gaseous water-soluble inorganic compounds and a liquid stream containing hydrocarbon compounds.

Abstract: A process for the production of motor fuel alkylate by reacting an alkene hydrocarbon, an alkane hydrocarbon and a hydrogen halide with a solid alkylation catalyst disposed in swing beds. The spent solid alkylation catalyst is regenerated in a highly integrated flow scheme associated with the alkylate recovery.

Abstract: A process for the removal of trace quantities of polynuclear aromatic compounds from the vapor effluent of a hydrocarbon dehydrogenation zone containing normally gaseous olefinic hydrocarbons, trace mononuclear aromatic compounds and trace polynuclear aromatic compounds by contacting the hot vapor effluent of a hydrocarbon dehydrogenation zone with a cold lean liquid absorption stream to absorb at least a portion of the trace polynuclear aromatic compounds to produce a rich liquid absorption stream and a gaseous olefin-containing hydrocarbon stream having a reduced concentration of polynuclear aromatic compounds.

Abstract: A process for treating a non-distillable halogenated organic feed stream wherein the feed stream is contacted with a hydrogen-rich gaseous stream at hydrodehalogenation conditions to produce a carbonaceous solid containing a reduced halogen content and hydrogen halide gas. The resulting carbonaceous solid is stripped with a second hydrogen-rich gas to recover additional hydrogen halide gas and to produce a carbonaceous solid which is suitable for other uses.

Abstract: A process for the dehydrogenation of a dehydrogenatable hydrocarbon by (1) contacting the dehydrogenatable hydrocarbon with a liquid alkali metal in a dehydrogenation zone to produce a stream containing a dehydrogenated hydrocarbon and an unconverted dehydrogenatable hydrocarbon, and an alkali metal hydride; (2) heating the alkali metal hydride to produce a heated liquid alkali metal and hydrogen; (3) recycling the heated liquid alkali metal to the dehydrogenation zone; (4) contacting the stream containing dehydrogenated hydrocarbon and unconverted dehydrogenatable hydrocarbon with a selective adsorbent to produce a stream containing dehydrogenated hydrocarbon and a stream containing an unconverted hydrogenatable hydrocarbon; (5) recycling the stream of the unconverted dehydrogenatable hydrocarbon to the dehydrogenation zone; and (6) recovering the stream containing dehydrogenated hydrocarbon.

Abstract: A process for the management of polynuclear aromatic compounds produced in a hydrocarbon dehydrogenation zone wherein the effluent from the hydrocarbon dehydrogenation zone is contacted with an adsorbent to reduce the concentration of polynuclear aromatic compounds. The resulting dehydrogenated hydrocarbon having a reduced concentration of polynuclear aromatic compounds is reacted with methanol to produce an ether. A portion of the ether is contacted with a spent bed of adsorbent to recover at least a portion of the polynuclear aromatic compounds adsorbed thereon to thereby regenerate the adsorbent.

Abstract: A process for the management of polynuclear aromatic compounds produced in a hydrocarbon dehydrogenation zone wherein the effluent from the hydrocarbon dehydrogenation zone containing dehydrogenated hydrocarbons, dehydrogenatable hydrocarbons and trace quantities of mononuclear and polynuclear aromatic hydrocarbons is admixed with a recycle stream containing mononuclear aromatic compounds and the resulting admixture is contacted with an adsorbent to reduce the concentration of mononuclear and polynuclear aromatic compounds and to produce a stream comprising dehydrogenated hydrocarbons and dehydrogenatable hydrocarbons. An off-line spent adsorbent containing mononuclear and polynuclear aromatic compounds is contacted with a hot hydrogen-rich gas to recover at least a portion of said mononuclear and polynuclear aromatic compounds to thereby regenerate the spent adsorbent.