Abstract: In the hydrocarbon-producing apparatus, a vapor-liquid separation tank of a second vapor-liquid separation unit is provided with a filling material layer. A vapor-liquid separation tank of the first vapor-liquid separation unit has a first return line. The vapor-liquid separation tank of the second vapor-liquid separation unit has a second return line. A light component of light oil discharged from a bottom of the vapor-liquid separation tank is returned to a portion between a top side above a return-location from the second return line within the vapor-liquid separation tank of the second vapor-liquid separation unit, and a line directly connected with a cooler installed on the first vapor-liquid separation unit through the first return line. A heavy component of light oil discharged from a bottom of the vapor-liquid separation tank of the second vapor-liquid separation unit is returned to the filling material layer through the second return line.

Abstract: A process and apparatus uses a flash drum to separate light hydrocarbons from heavy oligomerate from an oligomerization zone. The heavy oligomerate can bypass a fractionation column in the oligomerate recovery section and be recycled to the oligomerization zone or other zones. Costs are saved by avoiding repeatedly transporting and processing the heavier recycled oligomerate.

Abstract: A process and apparatus are disclosed for recovering a product stream by fractionation perhaps with compression of a C5? hydrocarbon stream. The C5? hydrocarbon stream may be taken from an overhead of a fractionation column. Fractionation includes a depentanizer column followed by a depropanizer column for producing a C4 and C5 stream. The recovered product stream may be oligomerized to produce larger oligomers. Oligomers may be delivered to a cracking reactor which may produce the C5? hydrocarbon stream.

Abstract: Processes suitable for purifying aromatic-containing feed streams, and processes using such purified streams are described, wherein the purification processes comprise: (a) providing a process feedstream comprising an aromatic component; and (b) bringing the process feedstream into contact with a first zeolite and a second zeolite; wherein the first zeolite has a mean pore size of 0.3 to 0.5 nm, and wherein the second zeolite has a mean pore size of 0.6 to 0.8 nm.

Abstract: A process for preparing poly alpha olefins from a Fisher-Tropsch product. The process comprising the steps of contacting a C5-C18 fraction of an alpha-olefinic hydrocarbon mixture produced from thermal cracking a C16-C40 Fisher-Tropsch product with an oligomerization catalyst under conditions to produce an oligomerized product; and fractionating the oligomerized product to obtain a fractionated product having an average carbon number greater than 30. A process for preparing lubricant base stocks from a Fisher-Tropsch product is also provided.

Abstract: This invention covers a process for dimerizing of isobutylene to Iso-octene and unique configuration is being disclosed, where the Feed is diluted to low level with recycle which has essentially no Iso-octene, dual catalyst system, new selectivator (IPA) and successive catalyst stages if needed to enhance the conversion. The process is very selective and provides higher isobutylene conversion. Additionally the invention also covers the hydrogenation of olefins to Paraffin, Iso-octene to Iso-octane product under moderate conditions and with dual or single catalyst system.

Abstract: The apparatus converts FCC olefins to heavier compounds. The heavier compounds are more easily separated from the unconverted paraffins. The heavier compounds can be recycled to an FCC unit or delivered to a separate FCC unit. Suitable conversion zones are oligomerization and aromatic alkylation zones.

Abstract: Nitrogen-containing Lewis bases act as poisons for molecular sieve catalysts used in oligomerisation reactions. A lowering of their presence in the feed prior to the contacting thereof with the molecular sieve brings a significant extension of catalyst life. Excessive elimination of these poisons may be disadvantageous. Lowering the levels of these catalyst poisons to more manageable concentrations is therefore preferred.

Abstract: Methods of oligomerizing hydrocarbons are disclosed. These methods include contacting olefins with an oligomerization catalyst in an oligomerization zone under oligomerization reaction conditions.

Abstract: This invention covers a process for making Octene from nix C4 Feed by a low cost highly selective multistage process. The multi staging of reactors essentially provides lower cost than conventional processes. Two options are provided in FIGS. 1 and 2 as regards to configuration based on the same catalyst but as can be seen that FIG. 1 configuration is low cost option with very high selectivity. The process provides conversion of butene to Octene >95% and product purity >96%. Product can be fractionated and can have a high purity Octene product by removing the trimers/polymers from the octene product. As mentioned due to the nature of the process configuration, one achieves high yield and selectivity with low cost.

Abstract: The present invention relates to a method for oligomerisation of ethylene to form linear alpha-olefins in an oligomerisation reactor in the presence of solvent and catalyst, wherein a reaction product containing unreacted ethylene and light linear alpha-olefins is discharged from the oligomerisation reactor and passed to at least one first direct cooling device for separating the reaction product into an ethylene rich gaseous fraction and a light linear alpha-olefins rich liquid fraction, wherein at least a portion of the light linear alpha-olefins rich liquid fraction is passed to a second cooling device for lowering the temperature thereof and is subsequently re-introduced into the first direct cooling device; and to a reactor system therefore.

Abstract: A multi component catalyst and catalytic cracking process for selectively producing C3 olefins. The catalyst comprises a first molecular sieve having an intermediate pore size, a second molecular sieve and, optionally a third molecular sieve having a large pore size. At least one of the channels of the second molecular sieve has a pore size index that is less than the pore size index of at least one channel of the first molecular sieve. The process is carried out by contacting a feedstock containing hydrocarbons having at least 5 carbon atoms is contacted, under catalytic cracking conditions, with the multi component catalyst. The catalyst finds application in the cracking of naphtha and heavy hydrocarbon feedstocks.

Abstract: The present invention relates to a process and apparatus for recovering product from reactor effluent of a reactor for a hydrocarbon feedstream. An indigenous C4 stream is used as lean oil in a demethanizer, which facilitates significant cost and operational savings. C4 bottoms from a downstream depropanizer is used as lean oil recycle.

Abstract: This invention is to a method of oligomerizing an olefin feed stream. The olefin feed stream contains at least one C2 to C12 olefin to obtain an olefin feed stream and has less than 1,000 ppm by weight oxygenated hydrocarbon. The olefin is oligomerized by contacting with an acid based oligomerization catalyst.

Abstract: This invention is to a method of oligomerizing an olefin feed stream. The olefin feed stream contains at least one C2 to C12 olefin to obtain an olefin feed stream and has from about 1,000 ppm to about 10 percent by weight oxygenated hydrocarbon. The olefin is oligomerized by contacting with an acid based oligomerization catalyst.

Abstract: Novel processes for the production of polyolefins, other polymers, and oxygenated compounds, such as polypropylene, polyethylene, polybutene-1, poly(isobutylene), polystyrene, poly(1,3-butadiene), ethylene oxide, propylene oxide, acrylonitrile, acrolein and others, within gas phase and slurry phase type reactors, from olefins produced via the catalytic dehydrogenation of corresponding paraffins and other monomers inside permeable catalytic membrane reactors or non-permeable conventional reactors. The developed processes can produce both homopolymers and copolymers depending on the operating conditions of the preceding dehydrogenation permreactor. The invented processes utilize integrated separation, recycling and re-reaction operations of the unconverted olefins, paraffins and other utilized monomers and hydrocarbon molecules.

Abstract: This invention is to a method of oligomerizing an olefin feed stream. The olefin feed stream contains at least one C2 to C12 olefin to obtain an olefin feed stream and has less than 1,000 ppm by weight oxygenated hydrocarbon. The olefin is oligomerized by contacting with an acid based oligomerization catalyst.

Abstract: A process for making a lube base stock wherein an olefinic feedstock is contacted with an oligomerization catalyst in a catalytic distillation unit to produce a product having a higher number average molecular weight than the olefinic feedstock. That product is separated zone in the catalytic distillation unit into a light byproduct fraction and a heavy product fraction that includes hydrocarbons in a lube base stock range.

Abstract: A process for making a lube base stock wherein a highly paraffinic feedstock is dehydrogenated to produce an olefinic feedstock. That olefinic feedstock is contacted with an oligomerization catalyst in an oligomerization zone to produce a product having a higher number average molecular weight than the olefinic feedstock. The product is separated into a light byproduct fraction and a heavy product fraction. The heavy product fraction comprises a lube base stock.

Abstract: A process for making a lube base stock wherein an olefinic feedstock is separated into a light olefin fraction and a medium olefin fraction. The light olefin fraction is contacted with a first oligomerization catalyst in a first oligomerization zone to produce a first product. Both the medium olefin fraction and the first product are contacted with a second oligomerization catalyst in a second oligomerization zone to produce a second product. The second product is separated into a light byproduct fraction and a heavy product fraction that includes hydrocarbons in the lube base stock range.

Abstract: A process is described in which butene oligomers are prepared from Fischer-Tropsch olefins, in which the butenes present in a C.sub.4 fraction of Fischer-Tropsch hydrocarbons are oligomerized to obtain dibutene. The dibutene can be fractionated in a fine distillation stage into di-n-butene and di-isobutene. In one embodiment of the process, the ethylene present in the Fischer-Tropsch olefins is dimerized and the dimerization mixture is recycled to the C.sub.4 fraction. In another embodiment, the isobutene present in the C.sub.4 fraction is reacted with an alcohol to give an alkyl tert-butyl ether, and only the remaining n-butene is oligomerized so that di-n-butene is formed as the sole dibutene.

Abstract: A novel process is provided which integrates the cracking of hydrocarbon containing feedstocks with the olefins purification and olefins derivative process utilizing dilute olefin feedstocks.

Abstract: A process for processing a cracked feed stream so as to provide a feed stream, having a requisite concentration of isobutylene and butene-1,to a polymerization unit for polymerization of isobutylene.

Abstract: There are disclosed a process for producing an oligomer by oligomerizing a raw material comprising an unsaturated bicyclo heptane derivative and/or an unsaturated bicyclo octane derivative, which comprises the step of restricting the contents of dienes contained in the raw material to at most 1% by weight; and a process wherein the raw material is subjected to solid acid treatment simultaneously with or prior to distillation and then to oligomerization. The above process can efficiently produce the oligomer well suited for use in a traction drive fluid having a low viscosity and exhibiting excellent performance over a wide temperature range.

Abstract: Olefins are oligomerized by passing a hydrocarbon feedstock mixture containing olefins of from 2 to 8 carbon atoms over a molecular sieve having a pore diameter of from greater than 4 angstroms to 15 angstroms, and then oligomerizing said olefins by passing the hydrocarbon feedstock over a nickel-containing catalyst at a temperature of from 0.degree.to 200.degree. C. and at a pressure of from 1 to 70 bar absolute.

Abstract: A improved process is provided for upgrading light olefins from hydrocarbon cracking, such as light crackate gas containing ethene, propene and other C.sub.1 -C.sub.4 lower aliphatics. The process comprises the steps of: maintaining an oligomerization reactor containing a fluidized bed of zeolite catalyst particles in a low severity reactor bed at oligomerization temperature conditions by passing hot olefinic gas upwardly through the fluidized catalyst bed under throughput rate conditions sufficient to convert at least 50 wt % of lower olefins to hydrocarbons in the C.sub.5 -C.sub.10 range; maintaining turbulent fluidized bed conditions through the fluidized bed by passing fresh ethene-rich feedstream gas upwardly through the fluidized catalyst bed and adding thereto sufficient recycled light byproduct gas to maintain a minimum gas velocity; cooling reaction effluent from the conversion zone to provide light gas byproduct and liquid hydrocarbon reaction product rich in C.sub.5 -C.sub.

Abstract: An improved catalytic process for converting an olefinic feedstock comprising ethylene and C.sub.3.sup.+ olefins to heavier liquid hydrocarbon product comprising the steps of:(a) prefractionating the olefinic feedstock to obtain a gaseous stream rich in ethylene and a liquid stream containing C.sub.3.sup.

Abstract: The separation and recovery of liquid hydrocarbons in a FCC gas plant is removed by integrating therewith an oligomerization reactor which produces liquid hydrocarbons from one of several olefinic streams within the gas plant.

Abstract: Separation and recovery of liquid hydrocarbons in a FCC gas plant is improved by integrating therewith a catalytic bed oligomerization reactor which produces predominantly olefinic liquid hydrocarbons from at least one olefinic stream within the gas plant.

Abstract: A continuous technique for upgrading light olefinic crackate gas from hydrocarbon cracking comprising methods and means for: (a) compressing and cooling a first portion of the light crackate gas to provide a first pressurized ethene-rich vapor stream and a first condensed crackate stream rich in C.sub.3.sup.+ aliphatics; (b) contacting said first ethene-rich vapor stream under pressure with a C.sub.5 + liquid sorbent stream in a gas-liquid contact absorber column under sorption conditions to selectively absorb a major amount of C.sub.3.sup.+ components; (c) recovering a second ethene-rich vapor stream overhead from the absorber column; (d) converting said second ethene-rich vapor stream in a reaction zone in once-through contact with a fluidized bed of said medium pore zeolite catalyst solid particles under oligomerization conditions to produce an olefinic hydrocarbon effluent stream rich in C.sub.

Abstract: An improved method for the separation of polymer from hydrocarbon solvent in a process for the manufacture of poly-.alpha.-olefins is disclosed. A solution of polymer and solvent at a temperature above 130.degree. C. and a pressure above atmospheric pressure is passed through pressure reduction means into a vessel. Solvent is flashed off and the polymer forms a pool of molten polymer. The temperature of the walls of the vessel above the pressure reduction means is maintained at least 10.degree. C., and especially at least 30.degree. C., above the temperature of the walls of the remainder of the vessel. The improved method is less susceptible to the formation of gel in the polymer.

Abstract: A process for converting normally gaseous olefins to higher hydrocarbons by catalytic oligomerization is disclosed wherein a feedstock comprising said olefins and containing a major amount of alkane diluent is contacted with a heterogeneous acid catalyst to produce said higher hydrocarbons.

Abstract: The invention relates to a process for the pretreatment of a light olefin fraction, or of a mixture of such fractions, for the purpose of selectively removing the isobutene and butadiene present.In accordance with the invention, the olefin fraction is contacted with boron trifluoride in the gas phase, under such conditions and for such a length of time that the isobutene and the butadiene will polymerize selectively, and the boron trifluoride and the isobutene and butadiene polymers obtained are then conventionally separated from the effluent.

Abstract: An improved catalytic process for converting an olefinic feedstock comprising ethylene and C.sub.3.sup.+ olefins to heavier liquid hydrocarbon product comprising the steps of:(a) prefractionating the olefinic feedstock to obtain a gaseous stream rich in ethylene and a liquid stream containing C.sub.3.sup.

Abstract: A continuous catalytic process for converting an olefinic feedstock comprising ethylene and C.sub.3.sup.+ olefins to heavier liquid hydrocarbon product comprising the steps of(a) prefractionating the olefinic feedstock to obtain a gaseous stream rich in ethylene and a liquid stream containing C.sub.3.sup.+ olefins;(b) vaporizing and contacting the liquid stream from the prefractionating step with hydrocarbon conversion oligomerization catalyst in a catalytic reactor system to provide a heavier hydrocarbon effluent stream comprising distillate, gasoline and lighter hydrocarbons;(c) fractionating the effluent stream to recover distillate, gasoline and lighter hydrocarbons separately;(d) recycling at least a portion of the recovered gasoline as a liquid sorption stream to prefractionating step (a); and(e) further reacting the recycled gasoline together with sorbed C.sub.3.sup.+ olefins in the catalytic reactor system of step (b).

Abstract: A process is provided whereby the dimer fraction obtained from a boron trifluoride catalyzed oligomerization process is reacted with an .alpha.-olefin in the presence of a phosphoric acid-modified boron trifluoride catalyst to produce higher oligomeric products typically having viscosities (210.degree. F.) in the 4 to 8 centistoke range.

Abstract: Mixed hydrocarbons of predominantly four carbon atoms each are subjected to etherification with methanol, to make ether from the tertiary olefin in the mixture; the unreacted hydrocarbons, after separation from the ether by distillation, are contaminated with methanol which is removed by absorption or extraction with a glycol before the hydrocarbons are subjected to further processing in which the methanol is detrimental.