Abstract: A process for preparing propene from propane, comprising the steps: A) a feed gas stream a comprising propane is provided; B) the fed gas stream a comprising propane, if appropriate steam and, if appropriate, an oxygenous gas stream are fed into a dehydrogenation zone and propane is subjected to a dehydrogenation to propene to obtain a product gas stream b comprising propane, propene, methane, ethane, ethene, carbon monoxide, carbon dioxide, steam, if appropriate hydrogen and, if appropriate, oxygen; C) product gas stream b is cooled, if appropriate condensed and steam is removed by condensation to obtain a steam-depleted product gas stream c; D) product gas stream c is contacted in a first absorption zone with a selective, inert absorbent which selectively absorbs propene to obtain an absorbent stream d1 laden substantially with propene and a gas stream d2 comprising propane, methane, ethane, ethene, carbon monoxide, carbon dioxide and hydrogen; E) if appropriate, the absorbent stream d1 is decompressed t

Abstract: A process for the dehydrogenation of a paraffinic hydrocarbon compound, such as an alkane or alkylaromatic hydrocarbon compound to produce an unsaturated hydrocarbon compound, such as an olefin or vinyl aromatic compound or mixture thereof, in which a dehydrogenation catalyst contacts gaseous reactant hydrocarbons in a reactor at dehydrogenation conditions.

Abstract: A catalyst suitable for the dehydrogenation and hydrogenation of hydrocarbons comprises at least one first metal and at least one second metal bound to a support material. The at least one first metal comprises at least one transition metal, suitably a platinum group metal. The support material is provided with an overlayer such that acidic sites on the support material are substantially blocked. In a preferred embodiment the catalyst is also substantially chloride free. Method of preparing catalyst are also disclosed.

Abstract: A process is described for obtaining from an “FCC” initial C5 fraction which is enriched with isoprene and purified and usable for the selective polymerization of isoprene. A process is also described for obtaining an isoprene homopolymer from a polymerization medium comprising isoprene and at least one methyl butene, such as said “FCC” C5 fraction which is enriched with isoprene and purified. The process of obtaining the final fraction from the initial C5 fraction includes: a catalytic hydrogenation reaction of said initial C5 fraction by a palladium-based catalyst, which produces an intermediate C5 fraction comprising n-pentenes in a mass ratio which is less than 0.

Abstract: Metal catalysts comprising hollow forms or spheres are made of metal alloy and optionally activated. The metal catalysts can be used for the hydrogenation, dehydrogenation, isomerization reductive alkylation, reductive amination, and/or hydration reaction of organic compounds.

Abstract: A radial reactor for utilization for catalytic reactions of gaseous or liquid feed streams 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 ring-shaped layer of the catalyst bed, wherein the generally inert material includes a potassium-containing compound, such as potassium oxide, hydroxide, carbonate or bicarbonate.

Abstract: A solid acid-base catalyst contains vanadium pentoxide hydrate.

Abstract: A compound shown by the following formula: wherein each of R1a, R2a, R3a and R4a represents a substituent selected from a non-reactive atom, a non-reactive group, a hydroxyl group and an amino group, and at least two members selected from R1a, R2a, R3a and R4a are a hydroxyl group, a carboxyl group or an amino group; is subjected to an esterification reaction or an amidation reaction with a polymerizable unsaturated compound (e.g., an alcohol, a carboxylic acid, an amine) in the presence of a catalyst comprising an element selected from the Group 3 elements, such as a samarium compound, to obtain a polymerizable adamantane derivative having at least one polymerizable unsaturated group in high yield.

Abstract: Process for the production of linear alkylaromatic hydrocarbons comprising: a) dehydrogenating C10-C14 n-paraffins; b) selectively hydrogenating the diolefins produced during step (a); c) feeding stream (b) and an aromatic hydrocarbon to an alkylation unit; d) distilling the alkylated stream into its main constituents; e) subjecting a paraffinic stream containing aromatic by-products, leaving step (d), to a hydrogenation step; f) recycling the stream leaving step (e) to the dehydrogenation unit of step (a).

Abstract: A highly flexible process for preparing butene oligomers from field butanes. The process can be controlled to produce the desired oligomerization products by appropriate selection of the starting materials.

Abstract: Stoichiometric and catalytic chemical transformations may be carried out in solution using novel fluorous multiphase systems (FMS). The term "fluorous" is defined as a carbon-fluorine bond rich organic molecule. The FMS consists of a fluorous phase containing a fluorous solvent, typically a fluorocarbon or a fluorohydrocarbon and a reagent or a catalyst containing a sufficient number of fluorous moieties to render it preferentially soluble in the fluorous solvent without impairing the ability of the catalyst or reagent to be effective in the reaction and while maintaining the reaction in a liquid or fluid phase. The nonfluorous solvent may be any suitable organic or nonorganic solvent(s) with limited or no solubility in the fluorous solvent that is effective for dissolving the reactant(s) and most desirably, for separating the resulting product(s). Typically, such solvents have a Hildebrand solubility parameter of at least about 18.0 MPa1/2.

Abstract: A process combination is disclosed to selectively upgrade naphtha to obtain products suitable for further upgrading to reformulated fuels. A naphtha feedstock is hydrogenated to saturate aromatics, followed by selective isoparaffin synthesis to yield light and heavy naphtha and isobutane. The heavy naphtha may be processed by reforming, light naphtha may be isomerized, and isobutane may be upgraded by dehydrogenation, etherification and/or alkylation to yield gasoline components from the process combination suitable for production of reformulated gasoline.

Abstract: The present invention relates to a procedure for cleaning a sinter used for filtering a metal catalyst suspension. As taught by the invention, the sinter is treated with an aqueous solution of hydrogen peroxide for displacing the metal catalyst left in the pores of the sinter with the aid of the gas produced by the decomposition of the hydrogen peroxide, caused by the metal catalyst, until gas formation ceases, indicating that no significant quantities of metal catalysts are left in the sinter. Such hydrogen peroxide decomposition is produced by the so-called anthraquinone process, in which an anthraquinone derivative is dissolved in an organic solvent then reduced with the aid of hydrogen gas in the presence of a catalyst to the corresponding anthraquinone derivative; the catalyst is then separated from such solution by filtering. Then, such corresponding anthraquinone derivative is oxidized with air or oxygen, whereby it reverses to the state preceding hydrogenation, i.e.

Abstract: This invention relates to a novel synthetic crystalline molecular sieve composition, MCM-37, which may contain framework +3 valence element, e.g. aluminum, and +5 valence element, e.g. phosphorus or with an addition +4 valence element, e.g. silicon, and to use thereof as a support and in catalytic conversion of organic compounds. The crystalline composition of this invention can easily be converted to catalytically active material.

Abstract: A process is disclosed for the production of linear olefinic hydrocarbons. A feed stream of paraffins is fed to a catalytic dehydrogenation reaction zone. Liquid phase hydrocarbons withdrawn from the dehydrogenation reaction zone are passed through a diolefin selective hydrogenation zone. The effluent of the hydrogenation zone is stripped of light ends and passed into an olefin separation zone, which preferably employs a selective adsorbent. The paraffinic effluent of the separation zone is recycled to the dehydrogenation zone. The paraffinic recycle stream contains some monoolefins, but is essentially free of diolefins. Dehydrogenation catalyst life is lengthened by elimination of diolefins in total charge to dehydrogenation zone. Product quality and yield is improved.

Abstract: A process is disclosed for the production of hydrogenated aromatic compounds and mixtures thereof by thermal treatment of aromatic oils or mixtures, derived from coal or petroleum, wherein the improvement over the prior art resides in thermally treating aromatic oils of boiling range 280.degree.-450.degree. C., with residues from the processing of liquid coal conversion products and/or petroleum refining, for up to 10 hours in a temperature region between 200.degree. and 380.degree. C. and at a pressure of maximum 15 bar, with good inter-mixing of the reaction components, and thereafter separating the products by distillation from the pitch-like residue.