Abstract: A process for the separation and recovery of the products stream resulting from the dehydrogenation of dehydrogenatable hydrocarbons which process utilizes an integrated system for the recovery of liquid olefin product by the use of a compression system, a pressure swing adsorption unit and a chiller system to concentrate the olefin product.

Abstract: An integrated process for the production of a hydrogenated distillable hydrocarbonaceous product from a temperature-sensitive hydrocarbonaceous stream containing a non-distillable component by the utilization of a hot hydrogen flash zone and a secondary separation zone to achieve a high yield of hydrogenated distillable hydrocarbonaceous product.

Abstract: A heat-exchange apparatus for separating a resin phase from a solvent solution containing a solvent, demetallized oil and resin which comprises: (a) at least one generally vertically positioned heat-exchange surface; (b) a means for directing the flow of the solvent solution in a downward direction over a portion of the heat-exchange surface thereby heating the solvent solution to precipitate a resin phase; (c) an outlet means to recover a solvent solution having a reduced concentration of resin which outlet means is located to essentially reverse the flow of the solvent solution having a reduced concentration of resin to a generally upward direction before exiting the heat-exchange apparatus; and (d) an outlet means to recover the resin phase from a lower portion of the heat-exchange apparatus.

Abstract: A catalyst prepared by the steps which comprise: (a) adding to an asphaltene-containing hydrocarbonaceous oil charge stock a metal compound, a heteropoly acid and water; (b) converting the metal compound and heteropoly acid within the charge stock by heating the oil to a temperature from about 120.degree. F. (43.degree. C.) to about 500.degree. F. (260.degree. C.) to produce at least one organometallic compound within the charge stock; and (c) converting the organometallic compound within the charge stock under hydroconversion conditions to produce the catalyst.

Abstract: A process for separating a resin phase from a solvent solution containing a solvent, demetallized oil and resin which process comprises: (a) passing the solvent solution over a portion of a generally vertically positioned heat-exchange surface thereby heating the solvent solution to precipitate a resin phase; (b) heating an upper portion of the vertically positioned heat-exchange surface with a circulating hot heat-exchange fluid; (c) passing at least a portion of the resin phase which is precipitated on the upper portion of the vertically positioned downwardly over a lower portion of the vertically positioned heat-exchange surface which lower portion is maintained at a lower temperature than the temperature of the upper portion; (d) recovering the solvent solution having a reduced concentration of resin; and (e) recovering a resin phase.

Abstract: A catalytic hydrocracking process which minimizes the fouling of the process unit with 11.sup.+ ring heavy polynuclear aromatic compounds by means of partially condensing the hydrocarbon effluent from the hydrocracking zone to produce an unconverted hydrocarbon stream comprising trace quantities of 11.sup.+ ring heavy polynuclear aromatic compounds and contacting the unconverted hydrocarbon stream with an adsorbent which selectively retains the 11.sup.+ ring heavy polynuclear aromatic compounds before the unconverted hydrocarbon stream is recycled to the hydrocracking zone.

Abstract: The present invention is a catalytic hydrocracking process which minimizes the fouling of the process unit with 11.sup.+ ring heavy polynuclear aromatic compounds by means of hydrogenating and converting at least a portion or slipstream of the hydrocarbon effluent from the hydrocracking zone containing trace quantities of 11.sup.+ ring heavy polynuclear aromatic compounds in a 11.sup.+ ring heavy polynuclear aromatic compound conversion zone containing a hydrogenation catalyst having a hydrogenation component at hydrogenation conditions to selectively reduce the concentration of 11.sup.+ ring heavy polynuclear aromatic compounds before the hydrocracking zone effluent is cooled below about 400.degree. F. At least a portion of the effluent from the 11.sup.+ ring heavy polynuclear aromatic compound conversion zone is cooled and separated to produce at least a portion of the unconverted recycle stream.

Abstract: A process for the preparation of a cumene feed for cumene oxidation from a fresh cumene stream and a recycle cumene stream containing trace quantities of at least one organic acid compound by means of introducing the fresh cumene stream and the recycle cumene stream containing trace quantities of an organic acid compound into a lower zone of a generally vertical elongated countercurrent contacting zone having a caustic/hydrocarbon contacting section in a lower portion of the countercurrent contacting zone and a water/hydrocarbon contacting section in an upper portion of the countercurrent contacting zone; introducing a water stream to provide water to the water/hydrocarbon contacting section; including an aqueous caustic scrubbing solution to provide caustic solution to the caustic/hydrocarbon contacting section; removing spent aqueous caustic solution from the countercurrent contacting zone; and removing and recovering a cumene feed from the countercurrent contacting zone.

Abstract: Processes are disclosed for purifying hydrocarbon feedstreams, e.g, natural gas, to remove carbonyl sulfide and other acid gases such as carbon dioxide and hydrogen sulfide. The processes employ a conversion step to convert carbonyl sulfide to hydrogen sulfide and carbon dioxide followed by an absorption step to remove the carbon dioxide and hydrogen sulfide from the feedstream. Carbonyl sulfide is converted to carbon dioxide and hydrogen sulfide in the presence of an aqueous alkaline solution which preferably has the same composition as the absorption solution used in the absorption step.

Abstract: A process for treating a hydrocarbonaceous feed stream containing a non-distillable component to produce a distillable hydrocarbonaceous product and a heavy product comprising the non-distillable component while minimizing thermal degradation of the hydrocarbonaceous feed stream which process comprises the steps of: (a) contacting the hydrocarbonaceous feed stream with a hot first hydrogen-rich gaseous stream having a temperature greater than the hydrocarbonaceous feed stream in a flash zone at flash conditions without indirect heat exchange thereby increasing the temperature of the hydrocarbonaceous feed stream and vaporizing at least a portion thereof to provide a hydrocarbonaceous vapor stream comprising hydrogen and a heavy product comprising the non-distillable component; (b) removing the hydrocarbonaceous vapor stream comprising hydrogen from the flash zone without contacting the vapor stream with hydrocarbonaceous liquid; (c) condensing at least a portion of the hydrocarbonaceous vapor stream comprisin

Abstract: A process for the dehydrogenation of a hydrocarbon selected from the group consisting of propane and butane in the presence of a catalyst comprising platinum and a carrier material. Reconditioning of catalyst particles containing platinum by transferring the catalyst particles through a combustion zone, a drying zone and a re-dispersion zone improves the process. Drying of the catalyst particles immediately after the combustion of coke improves the operation of a platinum re-dispersion zone. The lower moisture content in the re-dispersion zone allows the equilibrium reaction between hydrogen chloride and oxygen on the one hand, and water and chlorine on the other hand to be shifted to the production of chlorine. This shift of the equilibrium reaction can be further improved by maintaining an oxygen-enriched environment within the platinum re-dispersion zone. The use of a much lower chloride concentration in the re-dispersion zone reduces the emissions of hydrogen chloride from the regeneration zone.

Abstract: A process for the production of a hydrogenated hydrocarbonaceous product from a feedstock comprising organic compounds having a tendency to readily form polymer compounds by means of contacting the feed with a hydrogenated recycle liquid containing dissolved hydrogen in a first hydrogenation reaction zone operated at hydrogenation conditions selected to minimize a hydrogen-rich gaseous phase and to selectively hydrogenate organic compounds having a tendency to readily form polymer compounds and to produce a first hydrogenated stream comprising hydrocarbonaceous compounds and having a reduced concentration of polymer precursors. The resulting first hydrogenated stream is then contacted in a second hydrogenation zone with added hydrogen to produce hydrogenated stream comprising hydrogenated hydrocarbonaceous compounds.

Abstract: A gas absorber for removing at least one gaseous component from a flowing gas stream by contacting the gas stream with a lean liquid stream to absorb at least a portion of the gaseous component to produce a rich liquid stream comprising the gaseous component and a flowing gas stream having a reduced concentration of the gaseous component which absorber comprises: (a) a double wall forming an annulus having a means for restricting fluid flow into the bottom of the gas absorber from the bottom of the annulus and a means for passing fluid out of an upper section of the annulus into the gas absorber; (b) an inlet for the lean liquid stream having a locus in the upper end of the gas absorber; (c) an inlet for the flowing gas stream; (d) an outlet for the rich liquid stream having a locus in the lower end of the gas absorber; (e) an outlet for the flowing gas stream having a reduced concentration of the gaseous component; and (f) at least one inlet communicating with the lower end of the annulus which inlet is used

Abstract: A process for the removal of organic halide compounds from an effluent waste gas wherein the waste gas is sequentially compressed to separate water vapor and organic halide compounds, and to contact the resulting compressed gas having a reduced concentration of organic halide compounds with an adsorbent to produce an effluent waste gas containing essentially no detectable quantities of organic halide compounds.

Abstract: Aromatic hydrocarbons containing controlled proportions of xylene isomers and benzene may be produced by a process combining dehydrocyclodimerization of C.sub.2 -C.sub.5 aliphatic hydrocarbons, separation of benzene and toluene, and selective methylation.

Abstract: A process for treating a hydrocarbonaceous feed stream containing a non-distillable component to produce a distillable hydrocarbonaceous product and a heavy product comprising the non-distillable component while minimizing thermal degradation of the hydrocarbonaceous feed stream which process comprises the steps of: (a) contacting the hydrocarbonaceous feed stream with a hot first hydrogen-rich gaseous stream having a temperature greater than the hydrocarbonaceous feed stream in a flash zone at flash conditions without indirect heat exchange thereby increasing the temperature of the hydrocarbonaceous feed stream and vaporizing at least a portion thereof to provide a hydrocarbonaceous vapor stream comprising hydrogen and a heavy product comprising the non-distillable component; (b) removing the hydrocarbonaceous vapor stream comprising hydrogen from the flash zone without contacting the vapor stream with hydrocarbonaceous liquid; (c) condensing at least a portion of the hydrocarbonaceous vapor stream comprisin

Abstract: A process for the production of hydrogenated, distillable hydrocarbonaceous product from a feed comprising hydrocarbonaceous compounds and having a non-distillable component, and a feed comprising halogenated organic compounds by means of contacting the feed comprising hydrocarbonaceous compounds and having a non-distillable component with a hot hydrogen-rich gaseous stream to increase the temperature of this feed stream to vaporize at least a portion of the distillable hydrocarbonaceous compounds thereby producing a distillable hydrocarbonaceous product which is immediately hydrogenated in an integrated hydrogenation zone. The feed comprising halogenated organic compounds is contacted in a second hydrogenated hydrocarbonaceous product and at least one water-soluble inorganic halide compound.

Abstract: A catalytic hydrocracking process which minimizes the fouling of the process unit with 11.sup.+ ring heavy polynuclear aromatic compounds by means of hydrogenating and converting at least a portion of the recycle hydrocarbon liquid containing trace quantities of 11.sup.+ ring heavy polynuclear aromatic compounds in a 11.sup.+ ring heavy polynuclear aromatic compound conversion zone containing a zeolite hydrogenation catalyst having pore openings in the range from about 8 to about 15 Angstroms, a hydrogenation component and an intercalated clay component at hydrogenation conditions to selectively reduce the concentration of 11.sup.+ ring heavy polynuclear aromatic compounds.

Abstract: A process for treating an organic stream containing a non-distillable component to produce an organic vapor stream and a solid which process comprises the steps of: (a) contacting the organic stream containing a non-distillable component with a hydrogen-rich gaseous steam having a temperature greater than the organic stream in a flash zone at flash conditions thereby increasing the temperature of the organic stream and vaporizing at least a portion thereof to produce an organic vapor stream comprising hydrogen and a heavy stream comprising the non-distillable component; and (b) reacting at least a portion of the heavy stream comprising the non-distillable component in the presence of hydrogen in a pyrolysis zone to produce a thermally stabilized volatile organic stream comprising hydrogen and a solid.

Abstract: In a catalytic cracking process which includes contacting a hydrocarbon feedstock in a contacting zone in the presence of solid composition containing molecular sieve-containing catalyst capable of promoting hydrocarbon cracking at conditions effective to crack the hydrocarbon feedstock to lower boiling components, the improvement comprising conducting the contacting in the presence of at least one metal component, other than the catalyst, containing calcium and tin. A composition of matter comprising such catalyst and metal component is also disclosed.