Chemistry of hydrocarbon compounds inventions 05/08

20080125614 - Propylene polymer catalyst donor component: P

20080125615 - Method of separating dimethylnaphthalene isomers: Use of mordenite zeolite and zeolite Y as adsorbents enables a dimethylnaphthalene isomer mixture to be efficiently separated. A feedstock oil containing a dimethylnaphthalene isomer mixture including an α,α-isomer, an α,α-isomer, and a β,β-isomer is passed through an adsorbent layer (A) including mordenite zeolite together with a developing solvent. Subsequently,... Agent: Antonelli, Terry, Stout & Kraus, LLP

20080119673 - Process for heterogeneously catalyzed partial dehydrogenation of at least one hydrocarbon to be dehydrogenated: A process for heterogeneously catalyzed partial dehydrogenation of a hydrocarbon, in which a reaction gas mixture input stream comprising the hydrocarbon to be dehydrogenated is conducted through a fixed catalyst bed disposed in a shaft and the reaction gas mixture input stream is obtained in the shaft by metering an... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.c.

20080119674 - Reconditioning process for used hydrocarbon based stimulation fluid: A process treats a fluid stream of used fracturing fluid containing contaminants and forms a reconditioned fluid stream. Contaminants are removed by the combination of distillation, electrostatic agglomeration, decanting, and filtration. Optionally, the filtered fluid stream is treated in a clay tower to remove residual contaminants.... Agent: Sean W. Goodwin

20080119675 - Process and apparatus for treating a feed comprising butadiene: at least one complementary fractionation step, carried out in a zone which comprises a portion A, which is distinct from and not adjacent to the portion B of the pre-fractionation zone below the supply, in which the fraction drawn from a point in A is recovered with a C4/C5+ ratio... Agent: Millen, White, Zelano & Branigan, P.c.

20080119676 - Process for production of propylene and ethylbenzene from dilute ethylene streams: A process for producing propylene is provided which includes directing an ethylene stream from an ethylene reaction zone to a propylene reaction zone; directing a butene stream to the propylene reaction zone; reacting the ethylene stream with the butene stream in the propylene reaction zone to produce a propylene reaction... Agent: Dilworth & Barrese, LLP

20080119677 - Process and apparatus for alkylation of aromatic with olefin using impure aromatic recycle: Processes and apparatus for the alkylation of aromatic compound with mono-olefin aliphatic compound in the presence of solid alkylation catalyst use a lights distillation for obtaining desired selectivities to arylalkane in a energy efficient manner. The processes and apparatus offer the potential for debottlenecking existing arylalkane production facilities and reducing... Agent: Honeywell Intellectual Property Inc Patent Services

20080119678 - Olefin metathesis catalysts and related methods: The present invention provides methods for the synthesis of catalysts and precursors thereof. Methods of the invention may comprise combining a catalyst precursor and at least one ligand to generate a catalytically active species, often under mild conditions and in high yields. In some cases, a wide variety of catalysts... Agent: Wolf Greenfield & Sacks, P.c.

20080119679 - Process and draft control system for use in cracking a heavy hydrocarbon feedstock in a pyrolysis furnace: A process and control system for cracking a heavy hydrocarbon feedstock containing non-volatile hydrocarbons comprising heating the heavy hydrocarbon feedstock, mixing the heated heavy hydrocarbon feedstock with a dilution steam stream to form a mixture stream having a vapor phase and a liquid phase, separating the vapor phase from the... Agent: Exxonmobile Chemical Company Law Technology

20080119680 - Method for producing butadiene from n-butane: G) separating the gas stream f2 into a recycle stream g1 comprising n-butane and an offgas stream g2 comprising hydrogen, with or without carbon oxides and with or without inert gases, by contacting the gas stream f2 with a high-boiling absorbent and subsequently desorbing the gas constituents dissolved in the... Agent: Connolly Bove Lodge & Hutz, LLP

20080119681 - Process for the production of olefins by autothermal cracking: The present invention provides a process for the production of olefins by autothermal cracking of a liquid paraffinic hydrocarbon-containing feedstock in the presence of a molecular oxygen-containing gas, wherein said process comprises (a) providing a liquid paraffinic hydrocarbon-containing feedstock, (b) mixing said liquid paraffinic hydrocarbon-containing feedstock with a diluent comprising... Agent: Nixon & Vanderhye, Pc

20080114197 - Wet scrubbing and recycle of effluent-contaminating catalyst particles in an oxygenate-to-olefin process: The economics of a catalytic process using a fluidized conversion zone and a relatively expensive catalyst for converting an oxygenate to light olefins are substantially improved by recovering and recycling effluent contaminating catalyst particles from the product effluent stream withdrawn from the conversion zone which are present despite the use... Agent: Honeywell Intellectual Property Inc Patent Services

20080108857 - Synthesis of sapo-34 with essentially pure cha framework: A process for producing an ElAPO molecular sieve with essentially pure CHA framework is disclosed. When El is silicon the process allows for a broad range of silicon content, and produces a catalyst with a high selectivity for the conversion of methanol to olefins.... Agent: Honeywell Intellectual Property Inc Patent Services

20080103343 - Process for continuous production of hydrates: A system, process, and apparatus are provided for the efficient continuous production of hydrates. Gas separated from a well fluid is fed into a hydrate reactor that is submerged under the sea at a predetermined depth. The hydrates generated in the hydrate reactor are then transferred to a marine vessel... Agent: Chevron Corporation

20080103344 - Hydrogen production from biomass: Briefly described, embodiments of this disclosure include methods of generating hydrogen (H2) from a biomass and the like, are disclosed.... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20080103345 - Processes for converting oxygenates to olefins using aluminosilicate catalysts: The present invention relates to processes for forming mixed alcohols containing methanol and ethanol. The mixed alcohol can then be used as a feedstock for an oxygenate to olefin reaction system for conversion thereof to ethylene, propylene, and the like. In addition, the olefins produced by the oxygenate to olefin... Agent: Exxonmobil Chemical Company

20080103346 - Membrane separation of a metathesis reaction mixture: A process for separating a homogeneous metathesis catalyst and, optionally, one or more homogeneous metathesis catalyst degradation products from a metathesis reaction mixture containing in addition to said metathesis catalyst and said metathesis catalyst degradation product(s), one or more olefin metathesis products, one or more unconverted reactant olefins, and optionally,... Agent: The Dow Chemical Company