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| Number | Title | Issue Date |
| 7429685 | Method for the isomerisation of a C5-C8 fraction involving two parallel reactors The invention relates to a method of isomerising a charge comprising hydrocarbons containing between 5 and 8 carbon atoms per molecule. According to the invention, said charge is separated into at least two fractions: fraction A mostly comprising hydrocarbons contai... | 09/30/2008 |
| 7404301 | LNG facility providing enhanced liquid recovery and product flexibility A single LNG facility, and operating method therefor, capable of efficiently producing LNG products that meet the varying specifications of different LNG markets. ... | 07/29/2008 |
| 7332072 | Process to prepare a waxy raffinate A process to prepare a waxy raffinate product by (a) hydrocracking/hydroisomerizing a Fischer-Tropsch derived feed, wherein weight ratio of compounds having at least 60 or more carbon atoms and compounds having at least 30 carbon atoms in the Fischer-Tr... | 02/19/2008 |
| 7300565 | Process to prepare a microcrystalline wax and a middle distillate fuel The invention relates to a process to prepare a microcrystalline wax and a middle distillate fuel by (a) hydrocracking/hydroisomerizing a Fischer-Tropsch product, wherein the weight ratio of compounds having at least 60 or more carbon atoms and compound... | 11/27/2007 |
| 7285206 | Process to prepare a lubricating base oil and a gas oil A process to prepare a lubricating base oil and a gas oil by (a) hydrocracking/hydroisomerizing a Fischer-Tropsch product, wherein weight ratio of compounds having at least 60 or more carbon atoms and compounds having at least 30 carbon atoms in the Fischer-T... | 10/23/2007 |
| 7270739 | Fractionating and further cracking a Cfraction from a naphtha feed for propylene generation The present invention relates to a process for selectively producing C3 olefins from a catalytically cracked or thermally cracked naphtha stream by fractionating the naphtha feed to obtain at least a C6 rich fraction and feeding the C6 | 09/18/2007 |
| 7267759 | Fractionating and further cracking a Cfraction from a naphtha feed for propylene generation The present invention relates to a process for selectively producing C3 olefins from a catalytically cracked or thermally cracked naphtha stream by fractionating the naphtha feed to obtain a C6 fraction and feeding the C6 fraction ei... | 09/11/2007 |
| 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 |
| 7241375 | Heavy hydrocarbon composition with utility as a heavy lubricant base stock A heavy hydrocarbon composition with utility as a heavy hydrocarbon base stock comprising at least 95 wt % paraffin molecules, of which at least 90 wt % are isoparaffin, containing hydrocarbon molecules having consecutive numbers of carbon atoms, is a liquid at 100Â... | 07/10/2007 |
| 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 |
| 7141157 | Blending of low viscosity Fischer-Tropsch base oils and Fischer-Tropsch derived bottoms or bright stock A process for preparing Fischer-Tropsch derived lubricating base oils by blending a Fischer-Tropsch distillate fraction having a viscosity of 2 or greater but less than 3 cSt at 100 degrees C. with a Fischer-Tropsch derived bottoms fraction; lubricating base oil com... | 11/28/2006 |
| 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 |
| 7083713 | Composition of lubricating base oil with high monocycloparaffins and low multicycloparaffins A composition of lubricating base oil having a weight percent of all molecules with at least one aromatic function less than 0.30, a weight percent of all molecules with at least one cycloparaffin function greater than 10, and a ratio of weight percent of molecules ... | 08/01/2006 |
| 7045055 | Method of operating a wormgear drive at high energy efficiency This invention is directed to a method of operating a wormgear drive at high energy efficiency comprising filling an oil reservoir with a wormgear lubricant comprising an isomerized Fischer-Tropsch derived distillate fraction having a low traction coefficient and op... | 05/16/2006 |
| 7019186 | Process for the preparation of 2,6-dimethylnaphthalene A highly selective process is described for preparing 2,6-dimethylnaphthalene which comprises reacting a naphthalene hydrocarbon selected from naphthalene, methylnaphthalenes, dimethylnaphthalenes, trimethylnaphthalenes, polymethylnaphthalenes, and/or their mixtures... | 03/28/2006 |
| 7019182 | Method of hydrocarbon preservation and environmental protection Gas phase hydrocarbons resulting from the operation of offshore petroleum wells are converted into corresponding liquid products which are mixed with liquid phased hydrocarbons resulting from operation of the offshore petroleum well for delivery therewith. ... | 03/28/2006 |
| 7015369 | Method for producing propylene from methanol A process for producing propylene from methanol, wherein methanol vapor is reacted on a first catalyst to obtain a first vapor mixture containing dimethyl ether (DME), which is reacted on a form-selective zeolite catalyst disposed as bed in at least two series-conne... | 03/21/2006 |
| 6962895 | Lubricating compositions This invention relates to a lubricating composition comprising at least about 30% by weight at least one mineral oil, having a kinematic viscosity of less than about 8 cSt at 100° C., (A) from about 15% to about 40% by weight of at least one polymer, and (B) up to ... | 11/08/2005 |
| 6784330 | Process for integrating a methanol conversion unit with an FCC unit A process for treating methane-containing natural gas is provided which comprises: i) converting methane to methanol at or near a site of natural gas production; ii) transporting the methanol to a refinery remote from said site of production, said refinery producing... | 08/31/2004 |
| 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 |
| 6632971 | Process for converting natural gas to higher value products using a methanol refinery remote from the natural gas source A process for treating methane-containing natural gas is provided which comprises: i) converting methane to methanol at or near a site of natural gas production; ii) transporting the methanol to a refinery remote from said site of production, said refiner... | 10/14/2003 |
| 6627779 | Lube base oils with improved yield The invention provides methods for preparing a blended lube base oils comprising at least one highly paraffinic Fischer Tropsch lube base stocks and at least one base stock composed of alkylaromatics, alkylcycloparaffins, or mixtures thereof. The use of b... | 09/30/2003 |
| 6583186 | Method for upgrading Fischer-Tropsch wax using split-feed hydrocracking/hydrotreating The present invention is directed to a method for hydroprocessing Fischer-Tropsch products. The invention in particular relates to an integrated method for producing liquid fuels from a hydrocarbon stream provided by Fischer-Tropsch synthesis. The method ... | 06/24/2003 |
| 6339181 | Multiple feed process for the production of propylene This invention relates to a process to produce propylene from a hydrocarbon feed stream, preferably a naphtha feed stream, comprising C5 and C6 components wherein a light portion having a boiling point range of 120° C. or less is introduced into a reacto... | 01/15/2002 |
| 6255546 | Functional fluid with low Brookfield Viscosity A functional fluid of low Brookfield Viscosity comprising a mixture of hydrocracked base stocks, optionally a minor amount of solvent neutral base stock, and additives.... | 07/03/2001 |
| 6166281 | Alkylation of benzene to form linear alkylbenzenes using fluorine-containing mordenites This invention is directed to a fluorine-containing mordenite catalyst and use thereof in the manufacture of linear alkylbenzene (LAB) by alkylation of benzene with an olefin. The paraffin may have from about 10 to 14 carbons. The fluorine-containing mord... | 12/26/2000 |
| 6004452 | Process for converting hydrocarbon feed to high purity benzene and high purity paraxylene A process is provided for producing high purity benzene and high purity paraxylene from a hydrocarbon feed. In one aspect, the process comprises: (a) reforming a hydrocarbon feed using either a monofunctional catalyst or a bifunctional catalyst to provide... | 12/21/1999 |
| 5990370 | Steam cracking of ethane-rich and propane-rich streams This invention relates to a process for cracking hydrocarbon feedstock comprising a mixture of ethane and propane by (a) subjecting the feedstock to a fractionation process so as to separate the feedstock into an ethane rich stream and a propane rich stre... | 11/23/1999 |
| 5958218 | Two-stage hydroprocessing reaction scheme with series recycle gas flow Hydrocarbon feedstocks are hydroprocessed in parallel reactors, while hydrogen flows in series between the reactors. A first hydrocarbon feedstock and a hydrogen-rich recycle gas stream are introduced to a first reactor, where a first reactor effluent str... | 09/28/1999 |
| 5679117 | Refining process and apparatus A process of producing high octane hydrocarbons includes the steps of preparing a mixture of substantially ethanol and butane or natural gasoline, or low octane gasoline, the mixture having room temperature and atmospheric pressure, adjusting the pressure... | 10/21/1997 |
| 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 |
| 5649281 | Alkylation with separate alkylation of isobutane with pentenes A process is provided to react a feedstock comprising isobutane with pentenes in the presence of sulfuric acid catalyst to produce a high octane alkylate as well as a higher octane isopentane gasoline blending component. A method to reduce sulfuric acid c... | 07/15/1997 |
| 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 |
| 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 |
| 5227554 | Isomerization process A process for the isomerization of C4 and higher molecular weight hydrocarbons, preferably C4 to C6 paraffins with high C6 cyclics content. A C5 to C6 hydrocarbon stream is isomerized in a ... | 07/13/1993 |
| 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 |
| 5177285 | Process for wet aromatic alkylation and dry aromatic transalkylation A process for the production of alkylaromatic hydrocarbons uses a high water content in an alkylation zone and a low water content in a transalkylation zone to improve yields improve process yields and catalyst life. An aromatic feed and an acyclic feed a... | 01/05/1993 |
