Chemistry of hydrocarbon compounds inventions 02/07

20070043246 - Conversion of sludges and carbonaceous materials: A process for the conversion of sludges and carbonaceous materials, the process characterised by the steps of: (a) Heating the material to be converted in a heating zone of a reactor in the absence of oxygen for the volatilisation of oil producing vapours, thereby producing both a vapour product and... Agent: Brian Kinnear Holland & Hart

20070043247 - Diisobutylene production: A method for forming diisobutylene from a hydrocarbon stream that contains acetylenics and a low concentration of isobutylene, comprising at least reducing the acetylenic content of the stream before catalytically oligomerizing the isobutylene to diisobutylene.... Agent: Lyondell Chemical Company

20070043248 - Process to produce low viscosity poly-alpha-olefins: This invention relates to a process to produce a polyalpha-olefin comprising: 1) contacting one or more alpha-olefin monomers having 3 to 24 carbon atoms with an unbridged substituted bis cyclopentadienyl transition metal compound having: 1) at least one non-isoolefin substitution on both cyclopentadientyl rings, or 2) at least two substitutions... Agent: Exxonmobil Chemical Company

20070043250 - Catalytic conversion of oxygenates to olefins: An oxygenate conversion catalyst useful in the conversion of oxygenates such as methanol to olefinic products may be improved by the use of a catalyst combination based on a molecular sieve in combination with a co-catalyst comprising a mixed metal oxide composition which has oxidation/reduction functionality under the conditions of... Agent: Exxonmobil Chemical Company

20070043251 - High silica chabazite, its synthesis and its use in the conversion of oxygenates to olefins: wherein X is a trivalent element, such as aluminum, boron, iron, indium, and/or gallium; Y is a tetravalent element such as silicon, tin, titanium and/or germanium; and n is greater than 100 and typically greater than 200, such as about 300 to about 4000, for example from about 400 to... Agent: Exxonmobil Chemical Company Law Technology

20070043249 - Synthesis of molecular sieves having the chabazite framework type and their use in the conversion of oxygenates to olefins: wherein R1, R2 and R3 are independently selected from the group consisting of alkyl groups having from 1 to 3 carbon atoms and hydroxyalkyl groups having from 1 to 3 carbon atoms; R4 is selected from the group consisting of 4- to 8-membered cycloalkyl groups, optionally substituted by 1 to... Agent: Exxonmobil Chemical Company

20070043252 - Catalyst and process for the production of olefins: A catalyst system capable of supporting combustion beyond the fuel rich limit of flammability comprising a catalytic component, a first support and a second support and wherein the catalytic component is present on both the first and the second support, and a process for the production of an olefin, said... Agent: Nixon & Vanderhye, PC

20070043253 - Process for separating meta-xylene from a feed of aromatic hydrocarbons by liquid phase adsorption using tetraline as a desorbant: The invention concerns a process for separating meta-xylene from a hydrocarbon feed comprising isomers containing 8 carbon atoms, comprising: a step for bringing said feed into contact with a faujasite type zeolite adsorbant, the percentage of water in the adsorbant being in the range 0 to 8% by weight and... Agent: Millen, White, Zelano & Branigan, P.C.

20070038006 - Processing of kerosene: A method of thickening liquid hydrocarbons comprises mixing the hydrocarbon with an essentially paraffin polyolefin polymer in solid form to yield a thickened homogenous solution. The hydrocarbon is preferably kerosene and the polymer may be a “Vistanex” polymer. The product may be used as a lamp oil but may also... Agent: Clark & Brody

20070038007 - Production of linear alkyl benzene: This invention relates to a process for producing linear alkyl benzene, the process including the steps of obtaining a hydrocarbon condensate containing olefins, paraffins and oxygenates from a low temperature Fischer-Tropsch reaction; a) fractionating a desired carbon number distribution from the hydrocarbon condensate to form a fractionated hydrocarbon condensate stream;... Agent: Indianapolis Office 27879 Brinks Hofer Gilson & Lione

20070038008 - Process for the selective hydrogenation of phenylacetylene: A process for the reduction of a phenylacetylene contaminant in the presence of a styrene monomer. A styrene monomer stream containing a minor amount of phenylacetylene is supplied to a hydrogenation reactor. A hydrogenation gas comprising hydrogen is also supplied to the hydrogenation reactor. The styrene monomer stream and the... Agent: David J. Alexander

20070038009 - Aromatics alkylation process: The invention relates to a process for producing alkylated aromatics, preferably ethylbenzene, in a multiple bed reactor in which at least two catalysts, each comprising a molecular sieve, are used in sequential beds. The first alkylation catalyst is selected to have a higher activity or alpha value than the subsequent... Agent: Exxonmobil Chemical Company Law Technology

20070038010 - Process for producing lower olefins by using multiple reaction zones: The present invention provides a process for producing lower olefins by catalytic cracking a feedstock comprising an olefins-enriched mixture containing C4 or higher olefins and optionally an organic oxygenate compound. The technical problem mainly addressed in the present invention is to overcome the defects presented in the prior art including... Agent: Birch Stewart Kolasch & Birch

20070038011 - Process for producing lower olefins from methanol or dimethylether: The present invention provides a process for producing lower olefins from methanol or dimethyl ether. The technical problem mainly addressed in the present invention is to overcome the defects presented in the prior art including high operation temperature, low yield and selectivity of lower olefins as the target products, and... Agent: Birch Stewart Kolasch & Birch

20070038012 - Process for separating meta-xylene from a feed of aromatic hydrocarbons by liquid phase adsorption: The invention concerns a process for separating meta-xylene from a hydrocarbon feed comprising isomers containing 8 carbon atoms, comprising: a step for bringing said feed into contact with a faujasite type zeolite adsorbant, the water content of the adsorbant being in the range 0 to 1% by weight and the... Agent: Millen, White, Zelano & Branigan, P.C.

20070032689 - Gas hydrate inhibitors: A method for inhibiting formation of hydrocarbon hydrates in mixtures of water and a hydrate-forming guest molecule involves adding a reaction product to the mixtures in an effective amount to inhibit formation of the hydrocarbon hydrates under conditions otherwise effective to form the hydrocarbon hydrates in the absence of the... Agent: Madan, Mossman & Sriram, P.C.

20070032690 - Zeolite catalyst and method of preparing and use of zeolite catalyst: A zeolite catalyst is prepared by treating a zeolite with a phosphorus compound to form a phosphorus-treated zeolite. The phosphorus-treated zeolite is heated to a temperature of about 300° C. or higher and combined with an inorganic oxide binder material to form a zeolite-binder mixture. The zeolite-binder mixture is heated... Agent: Grady K. Bergen

20070032691 - Dehydrogenation process: A process for adiabatic, non-oxidative dehydrogenation of hydrocarbons including passing a hydrocarbon feed stream through a catalyst bed, wherein the catalyst bed includes a first layer of a catalyst and second layer of a catalyst, wherein the catalyst of the first layer has high activity but a higher capacity for... Agent: Lynch, Cox, Gilman & Mahan, P.s.c.

20070032692 - Catalyst and process for selective hydroconversion of normal paraffins to normal paraffin-rich lighter products: A process and catalyst are suitable for hydroconverting heavy normal paraffins into lighter normal paraffin products with minimal formation of isoparaffins. The process and catalyst can be used on any feed that contains heavy normal paraffins such as waxy lubricant fractions, slack wax or Fischer Tropsch products. By selectively forming... Agent: Chevron Texaco Corporation

20070027350 - Process for producing olefin oligomer: A process for producing an olefin oligomer, which comprises the steps of (1) contacting a transition metal compound with a compound represented by the formula, R1R2A-G-AR3R4, to produce a contact product (i), (2) contacting an alumoxane compound with an organoaluminum compound to produce a contact product (ii), and (3) contacting... Agent: Akin Gump Strauss Hauer & Feld L.L.P.

20070027351 - Production of olefins: A process for converting a hydrocarbon feedstock to provide an effluent containing light olefins, the process comprising passing a hydrocarbon feedstock comprising a mixture of a first portion, containing one or more olfeins of C4 or greater, and a second portion, containing at least one C1 to C6 aliphatic hetero... Agent: Fina Technology Inc