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| Number | Title | Issue Date |
| 7541504 | Octane improvement of a hydrocarbon stream The invention relates to methods for improving the octane number of a synthetic naphtha stream and optionally for producing olefins and/or solvents. In one embodiment, the method comprises aromatizing at least a portion of a synthetic naphtha stream to produce an ar... | 06/02/2009 |
| 7319180 | Paraffin alkylation A process for the alkylation of alkane with olefin or olefin precursor such as an oligomer of tertiary olefin comprising contacting a liquid system comprising acid catalyst, isoparaffin and olefin in concurrent downflow into contact in a reaction zone with a dispers... | 01/15/2008 |
| 7314601 | Processes for producing xylenes using isomerization and transalkylation reactions and apparatus therefor Processes for making xylene isomer use integrated transalkylation and isomerization reaction zones to enhance xylene recovery and enable reduction in capital costs and energy consumption. ... | 01/01/2008 |
| 7285698 | Method for manufacturing alkylate oil with composite ionic liquid used as catalyst The present invention pertains to a method for manufacturing alkylate oil using a composite ionic liquid as catalyst. A mixture of isobutane and C4 olefins is used as the raw material, and a composite ionic liquid is used as catalyst to carry out an alkylation react... | 10/23/2007 |
| 7250542 | Paraffin alkylation A process for the alkylation of alkane with olefin or olefin precursor such as an oligomer of tertiary olefin comprising contacting a liquid system comprising acid catalyst, isoparaffin and olefin in concurrent downflow into contact in a reaction zone with a dispers... | 07/31/2007 |
| 7249469 | Method for separating a multicomponent stream This invention relates to a method for separating a stream having benzene, toluene and alkyl benzene, said method comprising: feeding the stream into a first distillation column, wherein the stream comprises between about 60 mole percent to about 85 mole percent tol... | 07/31/2007 |
| 7161051 | Integration of a methanol synthesis system with a methanol to olefin reaction system Disclosed is a process for producing light olefins in an integrated methanol synthesis/MTO reaction system. The integrated system implements a shared separation system for separating oxygenate components from the respective methanol synthesis system and MTO reaction... | 01/09/2007 |
| 7150821 | High purity olefinic naphthas for the production of ethylene and propylene The present invention relates to an olefinic naphtha and a process for producing lower olefins from this naphtha. In the process of the present invention for producing lower olefins, preferably ethylene, at least a portion of a hydrocarbon asset is converted to synt... | 12/19/2006 |
| 7151198 | Integration of a methanol synthesis system with a methanol to olefin reaction system Disclosed is a process for producing light olefins in an integrated methanol synthesis/MTO reaction system. The integrated system implements a shared separation system for separating oxygenate components from the respective methanol synthesis system and MTO reaction... | 12/19/2006 |
| 7128827 | Integrated catalytic cracking and steam pyrolysis process for olefins Integration of gas oil and light olefin catalytic cracking zones with a pyrolytic cracking zone to maximize efficient production of petrochemicals is disclosed. Integration of the units in parallel allows production of an overall product stream with maximum ethylene... | 10/31/2006 |
| 7109389 | Process for the disproportionation and transalkylation of toluene and heavy aromatics A process for the disproportionation and transalkylation of toluene and the heavy aromatics comprises: subjecting a first stream of toluene, and a stream enriched in aromatics of nine carbon atoms to toluene disproportionation and transalkylation reactions in the pr... | 09/19/2006 |
| 6995296 | Paraffin alkylation A process for the alkylation of alkane with olefin or olefin precursor such as an oligomer of tertiary olefin comprising contacting a liquid system comprising acid catalyst, isoparaffin and olefin in concurrent downflow into contact in a reaction zone with a dispers... | 02/07/2006 |
| 6774273 | Process for selective disproportionation of toluene and disproportionation and transalkylation of toluene and C9+ aromatics The present invention relates to a process for the selective disproportionation of toluene and the disproportionation and transalkylation of toluene and C9+ aromatics to mainly solve the problems in the prior arts of the great amount of recycle... | 08/10/2004 |
| 6703535 | Process for upgrading fischer-tropsch syncrude using thermal cracking and oligomerization A process for upgrading a Fischer-Tropsch feedstock which comprises (a) recovering from a Fischer-Tropsch reactor a Fischer-Tropsch wax fraction and a Fischer-Tropsch condensate fraction, wherein the Fischer-Tropsch condensate fraction contains alcohols b... | 03/09/2004 |
| 6605206 | Process for increasing the yield of lubricating base oil from a Fischer-Tropsch plant A process for increasing the yield of C10 plus hydrocarbon products from a Fischer-Tropsch plant which comprises the steps of (a) separating a Fischer-Tropsch product into a wax fraction and a condensate fraction; (b) dewaxing the wax fraction ... | 08/12/2003 |
| 6497812 | Conversion of C1-C3 alkanes and fischer-tropsch products to normal alpha olefins and other liquid hydrocarbons Processes for converting C1 to C3 alkanes into high purity C6 to C24 normal alpha olefins and internal combustion engine grade fuels and/or lubricating oils comprising a sequence of fractionation and thermal cra... | 12/24/2002 |
| 6333442 | Process for the preparation of an aliphatic alkylate with a high octane number from a C4 cracking fraction An aliphatic alkylate with a high octane number is prepared from a C4 catalytic cracking or steam-cracking fraction that contains mainly isobutane, isobutene, butene-1 and butenes-2 by: (a) hydro-isomerizing said C4 fraction, obtaining a mixture that contains ... | 12/25/2001 |
| 5773675 | Method for eliminating carbon oxides in the hydrogen feed to a butane isomerization process A method for isomerizing at least a portion of a butane stream using a hydrogen stream containing more than 0.1 ppmv of carbon monoxide, carbon dioxide or a mixture thereof, the method comprising: charging the hydrogen stream containing at least 0.1 ppmv ... | 06/30/1998 |
| 5770781 | Method for eliminating carbon oxides in feeds to a C5 and C6 paraffin isomerization process A method for reducing the benzene content and isomerizing at least a portion of a C5 /C6 paraffinic stream using a hydrogen stream containing more than 0.1 ppmv of carbon monoxide, carbon dioxide or a mixture thereof, the method comp... | 06/23/1998 |
| 5660714 | Hydroconversion process utilizing a supported Ni-Cu hydroconversion catalyst Nickel-copper catalysts supported on an acidic carrier, preferably containing a binder, are used to hydroisomerize paraffins, particularly Fischer-Tropsch paraffins, boiling at 350° F.+ into lighter, more valuable products.... | 08/26/1997 |
| 5430217 | Integrated fluid coking paraffin dehydrogenation process An integrated fluid coking/paraffin dehydrogenation process. The fluid coking unit is comprised of a fluid coker reactor, a heater, and a gasifier. Solids from the fluidized beds are recycled between the coking zone and the heater and between the heater a... | 07/04/1995 |
| 5430216 | Integrated fluid coking paraffin dehydrogenation process An integrated fluid coking/paraffin dehydrogenation process. The fluid coking unit is comprised of a fluid coker reactor, a heater, and a gasifier. Solids from the fluidized beds are recycled between the coking zone and the heater and between the heater a... | 07/04/1995 |
| 5208403 | High VI lubricant blends from slack wax Lubricant compositions comprise blends or mixtures of low viscosity, 3-8 cS e.g. about 5 cS(100° C.), HVI lube basestock with higher viscosity, 15 cS+e.g. 30+ cS(100° C.) HVI PAO lube basestock produced from slack wax by thermal cracking to alpha olefin... | 05/04/1993 |
| 5200059 | Reformulated-gasoline production A process combination is disclosed to reduce the aromatics content and increase the oxygen content of a key component of gasoline blends. A naphtha feedstock having a boiling range usually suitable as catalytic-reforming feed is processed by selective iso... | 04/06/1993 |
| 5198097 | Reformulated-gasoline production A process combination is disclosed to reduce the aromatics content and increase the oxygen content of a key component of gasoline blends. A naphtha feedstock having a boiling range usually suitable as catalytic-reforming feed is processed by selective iso... | 03/30/1993 |
| 5171912 | Production of C5 + gasoline from butane and propane A process is disclosed that provides a high conversion of n-butane to C5 + gasoline by integrating the medium pore metallosilicate catalyzed process for fresh n-butane conversion to C5 + gasoline with a medium pore metallosilicate ca... | 12/15/1992 |
| 5100534 | Hydrocarbon cracking and reforming process An improved process for upgrading paraffinic naphtha to high octane fuel by contacting a naphtha feedstock, such as virgin naphtha feedstock stream containing predominantly C7 -C12 alkanes and naphthenes, with solid medium pore acid ... | 03/31/1992 |
| 5091074 | Process for producing gasoline components A process for producing gasoline components from a hydrocarbonaceous feed containing hydrocarbons comprising at least 4 carbon atoms is disclosed. The process comprises the following steps: a) separating feed into a heavy fraction containing hydrocarbons compr... | 02/25/1992 |
| 5026529 | Production of ethers from methanol Improved operating techniques and apparatus for converting methanol or the like to intermediate olefins and etherification products, such as methyl t-butyl ether, by extracting crude methanol feedstock with an olefinic liquid hydrocarbon stream containing... | 06/25/1991 |
| 5023389 | Process for preparing normally liquid oxygenate and hydrocarbonaceous products from a hydrocarbon feed containing linear- and branched olefins The invention relates to a process for preparing normally liquid hydrocarbon products such as middle distillates and methyl-t-butylether from a hydrocarbon feed containing linear and branched olefins (e.g. propane and butenes in light ends) comprising at ... | 06/11/1991 |
| 4956509 | Integrated paraffin upgrading and catalytic cracking processes A process is disclosed for decreasing the emission of airborne pollutants from an oil refinery and for upgrading a paraffinic feedstream to olefins and/or aromatics. Flue gas from a fluid catalytic cracking process catalyst regenerator is cooled to supply... | 09/11/1990 |
| 4831195 | Production of ethers from methanol Processes and apparatus for converting methanol or the like to intermediate olefins and etherification products, such as methyl t-butyl ether by extracting crude methanol feedstock with an olefinic liquid hydrocarbon stream containing C4 + iso-... | 05/16/1989 |
| 4497968 | Multistage process for converting olefins or oxygenates to heavier hydrocarbons A multistage technique for converting olefins to heavier hydrocarbons including a sorption prefractionation unit for separating olefinic feedstock into a sorbate stream rich in liquified olefins and a vapor stream rich in light olefins; a first stage cata... | 02/05/1985 |
| 4458096 | Process for the production of ethylene and propylene A process is described for producing ethylene and propylene in high selectivity from feed streams containing ethane and propane. The process involves separating the feed into ethane and propane fractions and subsequently cracking the ethane fraction to pr... | 07/03/1984 |
| 4413153 | Integrated process for making transportation fuels and lubes from wet natural gas The synthetic fuel slate of products derived from wet natural gas is expanded to include both aromatic gasoline from the methane rich dry gas portion via steam reforming to synthesis gas, the production of methanol from synthesis gas and the conversion of... | 11/01/1983 |
| 4324646 | Process for converting C4 olefinic cracking cuts to alkylate and gasoline A process is provided for selectively polymerizing isobutene in an olefinic C4 cut comprising isobutene and normal butenes by contacting the cut with a catalyst consisting essentially of silica-alumina; whereby at least 90% of the isobutene and... | 04/13/1982 |
| 4304947 | Catalytic alkylation of hydrocarbons An integrated process for the simultaneous alkylation of at least one isoparaffinic hydrocarbon with at least one C4 olefinic hydrocarbon and at least one isoparaffinic hydrocarbon with at least one olefinic hydrocarbon selected from the group ... | 12/08/1981 |
| 4301315 | Method of producing high octane alkylate gasoline A stream comprising isobutylene and n-butenes is processed to effect dimerization of the isobutylene, and the resulting isobutylene dimer is fed to an alkylation step.... | 11/17/1981 |
| 4244806 | Process for converting C4 olefinic cracking cuts to alkylate and gasoline A C4 olefinic cracking cut is subjected first to catalytic polymerization and then to fractionation: the resultant isobutene dimers and trimers fraction is hydrogenated, while the remainder is alkylated. The resultant product is a gasoline of h... | 01/13/1981 |
| 4079093 | Aromatic hydrocarbon alkylation process A process for the alkylation of an aromatic hydrocarbon with an olefinic hydrocarbon wherein a gaseous catalyst promoter is circulated through the alkylation zone effluent separation equipment including a first fractionation column. Part of the motive for... | 03/14/1978 |
