Chemistry of hydrocarbon compounds inventions 06/06

20060142623 - Polyethylene wax, lost wax composition for precision casting containing the same, and method for forming model for precision casting: Disclosed is a polyethylene wax defined by the features (i) to (iv): (i) said polyethylene wax is an ethylene homopolymer or a copolymer of ethylene and an α-olefin of 3 to 20 carbon atoms, (ii) a ratio (Mw/Mn) of the weight-average molecular weight (Mw) to the number-average molecular weight (Mn),...

20060142625 - Alkylated aromatic compositions, zeolite catalyst compositions and processes for making the same: The present invention is directed to novel alkylated aromatic compositions, zeolite catalyst compositions and processes for making the same. The catalyst compositions comprise zeolite Y and mordenite zeolite having a controlled macropore structure. The present invention is also directed to the preparation of the catalyst compositions and their use in...

20060142626 - Alkylated aromatic compositions, zeolite catalyst compositions and processes for making the same: The present invention is directed to novel alkylated aromatic compositions, zeolite catalyst compositions and processes for making the same. The catalyst compositions comprise zeolite Y and mordenite zeolite having a controlled macropore structure. The present invention is also directed to the preparation of the catalyst compositions and their use in...

20060142624 - Zeolite y alkylation catalysts: The present invention is directed to a zeolite Y catalyst having a controlled macropore structure. The present invention is also directed to a zeolite Y catalyst composite and a process for preparing the catalyst composite. The catalyst composite exhibits reduced deactivation rates during the alkylation process, thereby increasing the life...

20060142627 - Bicyclo compound, method for producing fused aromatic compound using the same and method for forming film of the same: There is provided a method for producing highly purified fused aromatic ring compounds with high yield by a simpler method. A method for producing a fused aromatic ring compound comprising irradiating the bicyclo compound containing at least one bicyclo ring represented by formula (1) in a molecule with light to...

20060142628 - Radial reactor loading of a dehydrogenation catalyst: A radial reactor for utilization for catalytic reactions of gaseous or liquid feedstreams including an annular catalyst bed, wherein the material contained within the catalyst bed includes an active catalyst material, contained within an outer ring-shaped layer of the catalyst bed, and a generally inert material, contained within an inner...

20060135828 - Method and reactor system for converting oxygenate contaminants in an mto reactor system product effluent to hydrocarbons: Disclosed is a method and reactor system for converting oxygenate and/or olefin contaminants in a methanol to olefin reactor system product effluent to hydrocarbons, including paraffin compounds, preferably over a sulphided catalyst of the type Nickel or Cobalt combined with Molybdenum or Tungsten. In one embodiment, the oxygenate-containing stream to...

20060135829 - Process for the hydrotreatment of an olefinic gasoline comprising a selective hydrogenation stage: The invention relates to a process for the hydrotreatment of an olefinic gasoline comprising at least one selective hydrogenation stage, and generally of simultaneous conversion of mercaptans by weight increase, in which the makeup hydrogen used in this stage or these stages has a reduced CO+CO2 content, preferably comprised between...

20060135830 - Selective hydrogenation of alpha-methyl-styrene to cumene: A process for the selective hydrogenation of alpha-methyl-styrene (AMS) to cumene in a two catalyst system is disclosed. A crude cumene feed stream containing up to 10% AMS by weight is supplied to the first reaction zone 112 and mixed with hydrogen in a first catalyst bed 118 containing a...

20060135831 - Dehydrogenation process: A process for the dehydrogenation of a C2 or C3 alkyl aromatic compound to a corresponding vinyl aromatic compound in a tubular reactor incorporating a spiral flow path. Preferred embodiments of the invention provide processes for the production of styrene or divinylbenzene by the catalytic dehydrogenation of ethylbenzene or diethylbenzene,...

20060135832 - Process and apparatus for oligomerization in multiple stages with single fractionation column: In an oligomerization process comprising at least two oligomerization reactors, at least portions of product streams from two reactors are separated in the same separator vessel. In an embodiment, a liquid product stream from the first oligomerization reactor is fed to a fractionation column and a side cut from the...

20060135833 - Method for the production of isobutene from commercial methyl tert-butyl ether: The invention relates to a process for preparing high-purity isobutene from industrial methyl tert-butyl ether (MTBE) and the economical utilization of the secondary streams....

20060135834 - Increasing ethylene and/or propylene production in an oxygenate to olefins reaction systems: This invention is directed to a process for converting oxygenate to olefin product at an increased prime olefin selectivity (i.e., increased ethylene and/or propylene content) compared to conventional systems. The increase in ethylene and/or propylene content of the produced olefin product is accomplished using a reaction system that has at...

20060135835 - Method and system for catalytically converting oxygenates and regenerating and stripping catalyst: A method of converting oxygenate-containing feedstock to light olefins comprises charging a reactor with catalyst, feeding the feedstock into the reactor, contacting the feedstock with the catalyst and converting the feedstock to olefins while depositing byproducts on catalyst resulting in spent catalyst, regenerating the spent catalyst by combustion gases, and...

20060135836 - Processes for lifting spent catalyst into a regenerator in an oxygenate to olefins reaction system: This invention provides processes for transporting catalyst, preferably in an oxygenate to olefins reaction system. In one embodiment, an oxygenate contacts molecular sieve catalyst particles in a reactor under conditions effective to form an effluent stream comprising light olefins and forming coked catalyst particles. At least a portion of the...

20060135837 - Catalyst comprising a metalic support and process for the production of olefins: A catalyst capable of supporting combustion beyond the fuel rich limit of flammability comprising a catalytic component and a metallic support wherein the support is a metallic structured packing comprising a multiplicity of open-ended channels and which has been loaded with a non metallic coating, and a process for the...

20060135838 - Catalyst and method for converting low molecular weight paraffinic hydrocarbons into alkenes: A process and catalyst for the partial oxidation of low molecular weight paraffinic hydrocarbons, such as methane, ethane, propane, naphtha, and natural gas condensates to form alkenes, such as ethylene, propylene and other valuable by-products. The process involves contacting the low molecular weight paraffinic hydrocarbon with the catalyst in the...

20060135839 - Alkylation process using chloroaluminate ionic liquid catalysts: p

20060135840 - Recovery and purification of ethylene: A process for the recovery and purification of ethylene and optionally propylene from a stream containing lighter and heavier components that employs an ethylene distributor column and a partially thermally coupled distributed distillation system....

20060129009 - Fuel, gas, combustion type power tool driven by the fuel gas, and compressed gas container for the combustion type power tool: A fuel gas has a gas including at least 40 weight % or more of 1-butene and propane, or at least 56 weight % or more of 1-butene and propylene. A combustion type power tool is driven by the fuel gas. A compressed gas container for a combustion type power...

20060129010 - Method for selective hydrogenation of polyunsaturated compounds into monounsaturated compounds using a homogeneous catalyst: A process for the selective hydrogenation of diolefinic compounds to mono-olefinic compounds uses a catalyst composition comprising at least one salt of a transition metal from groups IB, IIB, VB, VIB, VIIB and VIII of the periodic table, at least one ligand and at least one organometallic reducing agent, optionally...

20060129011 - Method and apparatus for reducing decomposition byproducts in a methanol to olefin reactor system: Disclosed is a method and apparatus for reducing the amount of metal catalyzed side-reaction byproducts formed in the feed vaporization and introduction system of a methanol to olefin reactor system by monitoring and/or maintaining the temperature of at least a portion of the feed vaporization and introduction system and/or of...

20060129012 - Vapor/liquid separation apparatus: A vapor/liquid separation apparatus for treating a flow of vapor/liquid mixtures of hydrocarbons and steam comprises a vertical drum with a side inlet to introduce hydrocarbon/steam mixtures, an overhead vapor outlet, and a lower section in communication with a cylindrical boot of less diameter than the drum, the boot comprising...

20060129013 - Specific functionalization and scission of linear hydrocarbon chains: The present invention relates generally to a method of producing single carbon number olefins and/or a narrow distribution of olefin products on demand and not as part of a distribution. The invention also relates to the olefins so produced, including, by way of example, 1-octene, and Cn-olefins. More specifically, in...

20060129014 - Alkylation process with settler effluent recycle: A system and/or process for increasing the isobutane to olefin ratio in an alkylation process/system is disclosed. The system and/or process includes provisions for charging a portion of the settler effluent as a feed to at least one reaction zone downflow from the first reaction zone of a multi-zone alkylation...

20060129015 - Process using microchannel technology for conducting alkylation or acylation reaction: The disclosed invention relates to a process, comprising: flowing a first reactant feed stream comprising a reactant substrate and a second reactant feed stream comprising an alkylating agent, an acylating agent or a mixture thereof, in a process microchannel in contact with each other to form a product comprising at...

20060129016 - Methods for controlling water content of sulfuric acid in a sulfuric acid catalyzed process: A method is provided for reducing the water content of a sulfuric acid catalyst in a sulfuric acid-catalyzed process carried out in a reactor comprising: (a) withdrawing a portion of catalyst from the acid settler, forming a withdrawn catalyst stream; (b) continuously adding an SO3-containing substance to the withdrawn catalyst...

20060129017 - Process for removing naphthalene from alkylaromatics: A process for the reduction of naphthalene in process streams containing alkylaromatic solvents. Naphthalene is contacted with alkylbenzenes in a distillation column reactor in the presence of transalkylation catalyst to produce alkylnaphthalenes which are concurrently separated by fractional distillation as bottoms and the alkylbenzenes are separated as overheads....

20060116539 - Use of monolith catalyst to prepare ethylbenzene: Disclosed is an alkylation reactor for preparing ethylbenzene. The reactor comprises a monolith catalyst system that includes a monolith support impregnated or co-formed with a catalyst suitable to catalyze the alkylation of benzene with ethylene. The catalyst may be selected from, for example, zeolites such as beta zeolite and MCM-22...

20060116540 - Conversion of oxygenates to light olefins using high-silica molecular sieve cha: A method is disclosed for converting oxygenates to light olefins by reacting the oxygenate at effective conditions over a catalyst comprising a molecular sieve having the CHA crystal structure and having a mole ratio of greater than 50 to 1500 of (1) an oxide selected from silicon oxide, germanium oxide...

20060116541 - Oxygenate conversion using boron-containing molecular sieve cha: A boron-containing molecular sieve having the CHA crystal structure and comprising (1) silicon oxide and (2) boron oxide or a combination of boron oxide and aluminum oxide, iron oxide, titanium oxide, gallium oxide and mixtures thereof is prepared using a quaternary ammonium cation derived from 1-adamantamine, 3-quinuclidinol or 2-exo-aminonorbornane as...

20060116542 - Metathesis catalyst and process: An olefin metathesis process and a catalyst composition suitable for such process comprising (a) rhenium, (b) one or more metal(s) from Columns 5 and 6 of the Periodic Table, and (c) a support made from an alumina; wherein surface area of the catalyst is at least 200 m2/g as determined...

20060116543 - Method and apparatus for steam cracking hydrocarbons: A method and apparatus for steam cracking hydrocarbons, which method consists in heating a mixture of hydrocarbons and steam to a desired temperature that is high enough to crack the hydrocarbons and transform them into olefins, the method being characterized in that the source of energy needed for heating the...

20060116544 - Process for producing olefin by catalytic cracking of hydrocarbon: A process for producing olefin by catalytic cracking of hydrocarbon material characterized in employing zeolite of penta-sil type comprising rare earth elements and at least one of manganese or zirconium as a catalyst. It enables to produce light olefin such as ethylene, propylene, and so on with selectively high yield...