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| Number | Title | Issue Date |
| 7579511 | Process for making cyclohexylbenzene Provided is a process for making cyclohexylbenzene. The process includes the following steps: (a) contacting benzene and hydrogen in the presence of a first catalyst under hydroalkylation conditions sufficient to form a first effluent stream having cyclohexylbenzene... | 08/25/2009 |
| 7411101 | Production of alkylaromatic compounds A process for producing a monoalkylation aromatic product, such as ethylbenzene and cumene, utilizing an alkylation reactor zone and a transalkylation zone in series or a combined alkylation and transkylation reactor zone. ... | 08/12/2008 |
| 7339086 | Process for the hydrogenation of branched olefins deriving from the dimerization of isobutene A process is described for the hydrogenation of olefinic streams containing sulfurated compounds, obtained starting from hydrocarbon cuts containing isobutene (by means of selective dimerization), characterized by fractionating said streams in one or more distillati... | 03/04/2008 |
| 6864398 | Conversion of syngas to distillate fuels An integrated process for producing high value products, including for example distillate fuel, from syngas is disclosed. The integrated process of the present invention produces high value products from a Fischer Tropsch with minimal production of low value product... | 03/08/2005 |
| 6700027 | Process for the oligomerization of olefins in Fischer-Tropsch condensate using chromium catalyst and high temperature A process for increasing the yield of C10 plus hydrocarbon products from a Fischer-Tropsch plant which comprises (a) recovering a Fischer-Tropsch condensate fraction boiling below about 700 degrees F. from the Fischer-Tropsch plant, wherein sai... | 03/02/2004 |
| 6646172 | Preparation of propene A multistage process for preparing propene, in which the first stage is the reaction of 1-butene, 2-butene and isobutene to give propene, 2-pentene and 2-methyl-2-butene in the presence of a metathesis catalyst comprising at least one compound of a metal ... | 11/11/2003 |
| 6613108 | Process for producing a fuel component The invention relates to process for dimerizing olefinic hydrocarbon feedstock, to hydrocarbon compositions and to fuel components produced by the process. According to the invention, fresh olefinic hydrocarbon feedstock is fed to a reaction zone of a sys... | 09/02/2003 |
| 6596912 | Conversion of methane to C4+ aliphatic products in high yields using an integrated recycle reactor system This invention relates to processes and systems for the conversion of methane in high yields to C4+ hydrocarbons. The principal steps of the recycle process include reacting methane and O2 in an oxidative coupling reactor over a Mn/N... | 07/22/2003 |
| 6479721 | Alkylation process operating at low olefin ratios A process for the alkylation of aromatics with olefins using a solid catalyst is disclosed, wherein the olefin ratio and/or the maximum olefin concentration in the alkylation catalyst, bed is maintained less than an upper limit. Such operation can decreas... | 11/12/2002 |
| 6433240 | Preparation of propene and, if desired, 1-butene Propene and, if desired, 1-butene are prepared by first reacting 1-butene and 2-butene to give propene and 2-pentene in the presence of a metathesis catalyst containing at least one compound of a metal of transition group VIb, VIIb or VIII of the Periodic... | 08/13/2002 |
| 6376731 | Selective olefin oligomerization A process is provided for the production of a gasoline blending fraction rich in isooctane by the dimerization of isobutylene using tertiary butyl alcohol modifier and lower alkane diluent; advantageously the isobutylene is derived from the dehydration of... | 04/23/2002 |
| 6339179 | Production of alkyl aromatics by passing transalkylation effluent to alkylation zone and to product recovery zone A process for producing alkyl aromatics using a transalkylation reaction zone and an alkylation reaction zone is disclosed. One portion of the transalkylation reaction zone effluent passes to an alkylation reaction zone where an aromatic substrate is alky... | 01/15/2002 |
| 6150578 | Recovery process for wet aromatic alkylation and dry aromatic transalkylation A separation arrangement for a cumene process that operates with a relatively wet feed to an alkylation zone and relatively dry feed to a transalkylation zone reduces utilities and capital expenses for the separation and recycle of distinct wet and dry co... | 11/21/2000 |
| 6096934 | Oxidative coupling of methane with carbon conservation A process for converting methane to ethane and ethylene through oxidative coupling of methane and carbon conservation has been developed. The process begins by contacting methane and an oxygen-containing stream with an oxidative coupling catalyst that is ... | 08/01/2000 |
| 6096935 | Production of alkyl aromatics by passing transalkylation effluent to alkylation zone A process for producing alkyl aromatics using a transalkylation reaction zone and an alkylation reaction zone is disclosed. The transalkylation reaction zone effluent passes to the alkylation reaction zone where aromatics in the transalkylation reaction z... | 08/01/2000 |
| 6031143 | Process for the production of styrene Process for the production of styrene which comprises: a) feeding to an alkylation unit a stream of benzene and a stream of recycled product containing ethylene; b) mixing the stream at the outlet of the alkylation unit, containing ethylbenzene, with a stream ... | 02/29/2000 |
| 6018086 | Process for preparing 2,6-dialkylnaphthalene The present invention relates to a process of preparing dialkylnaphthylenes and polyalkylenenaphthyleneates.... | 01/25/2000 |
| 5998684 | Recovery process for wet aromatic alkylation and dry aromatic transalkylation A separation arrangement for a cumene process that operates with a relatively wet feed to an alkylation zone and relatively dry feed to a transalkylation zone reduces utilities and capital expenses for the separation and recycle of distinct wet and dry co... | 12/07/1999 |
| 5959168 | Zeolite-based ethylabenzene process adaptable to an aluminum chloride-based ethylbenzene plant A zeolite-based ethylbenzene process which is suitable for retrofitting aluminum chloride-based ethylbenzene plants. The process involves alkylating benzene with ethylene in an alkylation zone in the presence of zeolite beta or Y or an MCM zeolite so as t... | 09/28/1999 |
| 5902917 | Alkylaromatics production There is provided a process for producing alkylaromatics, especially ethylbenzene and cumene, wherein a feedstock is first fed to a transalkylation zone and the entire effluent from the transalkylation zone is then cascaded directly into an alkylation zon... | 05/11/1999 |
| 5877372 | Isobutylene oligomerization using isooctane diluent A process is provided for the production of a gasoline blending fraction rich in isooctane by the dimerization of isobutylene using tertiary butyl alcohol modifier and isoalkane diluent; advantageously the isobutylene is derived from the dehydration of te... | 03/02/1999 |
| 5847253 | Alkylation-transalkylation process using stripping to produce a dry transalkylation feed A process for the production of alkylaromatic hydrocarbons that operates with a high water content in an alkylation zone and a low water content in a transalkylation zone is disclosed. An aromatic feed and an acyclic feed are first passed through the alky... | 12/08/1998 |
| 5811608 | Process for oligomer production and saturation A process for the production of saturated oligomers by the oligomerization of light olefins to heavier olefins and the saturation of the heavy olefins is improved by the recycle of the heavy paraffins to the oligomerization zone. The recycle of the heavy ... | 09/22/1998 |
| 5811623 | Isomerization of olefins by alkylation and dealkylation of aromatic hydrocarbons A isomerization process for C4 to C15 olefins carried out by the reaction of C4 to C15 olefins, having a first skeletal distribution, with aromatic compounds under alkylation conditions to produce an alkylated a... | 09/22/1998 |
| 5600046 | Combination dehydrocyclodimerization and dehydrogenation process for producing aromatic and olefin products This invention deals with a process for converting aliphatic C2 -C6 hydrocarbons into C6+ aromatics and C3= /C4= olefins. The process involves combining dehydrocyclodi... | 02/04/1997 |
| 5523508 | Process for linear alpha-olefin production: eliminating wax precipitation Linear alpha-olefin formation via oligomerization of ethylene using transition metal catalysis leads to a Schultz-Flory distribution of oligomers. At modest temperatures formation of heavy oligomers which are waxy solids only partly soluble in the LAO pro... | 06/04/1996 |
| 5475175 | Process for the production of alkylate gasoline from FCC light aliphatics This invention provides a process for upgrading hydrocarbon feedstock comprising the steps of: (i) recovering a C4 -rich aliphatic stream from a catalytic cracking process; (ii contacting said C4 -rich aliphatic stream with an isomerizati... | 12/12/1995 |
| 5446223 | Alkylation of organic aromatic compounds The aging rate of the catalyst in a process for the concurrent alkylation of aromatic with olefin and distillation of reaction components (reactants and products) in a distillation column reactor in a catalyst bed wherein the catalyst also serves as the d... | 08/29/1995 |
| 5434325 | Process for the production of tertiary butylethylbenzene The present invention provides an alkylation process which is highly selective towards the production of para-tertiarybutylethylbenzene in high yield and in high para isomer content, while minimizing the development of unwanted by-products and impurities ... | 07/18/1995 |
| 5401893 | Combination dehydrocyclodimerization and dehydrogenation process for producing aromatic and olefin products This invention deals with a process for converting aliphatic C2 -C6 hydrocarbons into C6+ aromatics and C3= /C4= olefins. The process involves combining dehydrocyclodi... | 03/28/1995 |
| 5380425 | Over alkylation and catalytic cracking for benzene conversion A process for producing a low benzene content gasoline is disclosed. Catalytic reforming produces a benzene rich reformate which is fractionated to yield a benzene rich C6 fraction which is then over-alkylated, preferably with C2/C3 olefins from an FCC, t... | 01/10/1995 |
| 5210350 | Method of preparing an alkylated aromatic product with an alkylation zeolite and a dealkylation zeolite A method of preparing an alkylated aromatic product (12) by alkylation of an aromatic compound (1), the alkylation producing several alkylated aromatic products, this method being characterized by the following points: (a) the aromatic compound (1) is rea... | 05/11/1993 |
| 5177279 | Integrated process for converting methanol to gasoline and distillates An integrated process for the conversion of methanol feed to gasoline and distillate range liquid hydrocarbons comprising the steps of splitting the methanol feed into two portions, contacting the first portion of the methanol feed with a medium-pore shap... | 01/05/1993 |
| 5146032 | Integrated process for converting methanol to gasoline and distillates An integrated process comprising the steps of pressurizing a C3+ olefin hydrocarbon stream and a methanol feed and contacting the C3+ hydrocarbon stream and methanol feed in a first reaction zone with a medium-p... | 09/08/1992 |
| 5059744 | Reactor and recovery system for upgrading lower olefins An improved olefin upgrading technique and fixed-bed reactor system has been developed for increasing production of premium heavy hydrocarbons, such as distillate fuel, from lower olefinic feedstock. During recovery and recycle of intermediate range hydro... | 10/22/1991 |
| 4935568 | Multistage process for oxygenate conversion to hydrocarbons A continuous multistage process for preparing gasoline and/or distillate range hydrocarbons from lower molecular weight oxygenate feedstock wherein hydrocarbon yield is increased by recovering a vapor stream rich in ethene from an oxygenates conversion st... | 06/19/1990 |
| 4879428 | Upgrading lower olefins An improved olefin upgrading technique has been developed for increasing production of premium heavy hydrocarbons, such as distillate fuel, from lower olefinic feedstock. During recovery and recycle of intermediate range hydrocarbons products, a process h... | 11/07/1989 |
| 4788365 | High octane gasoline and distillates from oxygenates An integrated process for the conversion of methanol to high octane gasoline and distillate. Methanol is converted to olefins in the presence of zeolite type catalyst. C4 and C5 olefin fraction is converted to MTBE and TAME in the pr... | 11/29/1988 |
| 4746761 | Process for coverting methanol to alkyl ethers A multistage process for producing isoalkyl ethers from lower aliphatic oxygenate feedstock, such as methanol. Feedstock is catalytically converted in a primary catalyst stage at elevated temperature in contact with zeolite catalyst to predominantly C | 05/24/1988 |
| 4684757 | Process for converting methanol to alkyl ethers, gasoline, distillate and alkylate liquid hydrocarbons A multistage process for producing ethers from lower aliphatic oxygenate feedstock, such as methanol. Feedstock is catalytically converted in a primary catalyst stage at elevated temperature in contact with zeolite catalyst to predominantly C2 ... | 08/04/1987 |
