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| Number | Title | Issue Date |
| 8309782 | Process for dehydrogenation in the presence of a bimetallic or multi-metallic catalyst that has an optimized bimetallicity index and an optimized hydrogen adsorption capacity The invention relates to a process for dehydrogenation of a hydrocarbon feedstock in the presence of a catalyst that comprises a noble metal M that is selected from the group that consists of platinum, palladium, rhodium, and iridium, at least one promoter X1 that i... | 11/13/2012 |
| 7790942 | Process for continuous heterogeneously catalyzed partial dehydrogenation of at least one hydrocarbon to be dehydrogenated A process for continuous heterogeneously catalyzed partial dehydrogenation of at least one hydrocarbon to be dehydrogenated in a reactor which is manufactured from a steel with specific elemental composition on its side in contact with the reaction gas, and also par... | 09/07/2010 |
| 7687676 | Dehydrogenation process with water and temperature control The activity of a dehydrogenation catalyst is improved by increasing the water concentration maintained in the reactants toward the start of the catalyst's life, but after the catalyst has deactivated to the extent that the temperature required to maintain the conve... | 03/30/2010 |
| 7683232 | Production of olefins having a functional group A process is disclosed for producing functionalized olefins from a fuel source including an organic compound including a functional group. Useful fuel sources include, for example, biofeedstocks (e.g., carbohydrates, triglycerides, polyols, and biodiesel). The proce... | 03/23/2010 |
| 7432406 | Dehydrogenation process using a noble metal on a tin containing zeolite catalyst A dehydrogenation process using an improved noble metal containing catalyst is disclosed. The catalyst comprises a non-acidic molecular sieve having a three-dimensional microporous framework structure of tin, aluminum and silicon tetrahedral oxide units. The non-aci... | 10/07/2008 |
| 7405338 | Dehydrogenation reactions in narrow reaction chambers and integrated reactors Methods of dehydrogenating hydrocarbons to yield unsaturated compounds are described. Reactor configurations useful for dehydrogenation are also described. Hydrocarbons can dehydrogenationed, for relatively long periods of time-on-stream, in a reaction chamber havin... | 07/29/2008 |
| 7402719 | Catalytic oxidative dehydrogenation, and microchannel reactors for catalytic oxidative dehydrogenation The invention provides methods of oxidative dehydrogenation (ODH). Conducting ODH in microchannels has unexpectedly been found to yield superior performance when compared to the same reactions at the same conditions in larger reactors. ODH methods employing a Mo—V... | 07/22/2008 |
| 7348462 | Process for preparing branched olefins from a paraffinic wax A process for preparing branched alkyl aromatic hydrocarbons, which process comprises contacting branched olefins with an aromatic hydrocarbon under alkylating conditions, which branched olefins have been obtained by a process which comprises dehydrogenating an isop... | 03/25/2008 |
| 7335802 | Methods of preparing branched aliphatic alcohols Systems and methods to produced branched aliphatic alcohols are described. Systems may include a dehydrogenation-isomerization unit, an olefin dimerization unit, an olefin isomerization unit, a hydroformylation unit, a dehydrogenation unit, a hydrogenation unit and/... | 02/26/2008 |
| 7329791 | Hydrogen transport membranes for dehydrogenation reactions A method of converting C2 and/or higher alkanes to olefins by contacting a feedstock containing C2 and/or higher alkanes with a first surface of a metal composite membrane of a sintered homogenous mixture of an Al oxide or stabilized or partial... | 02/12/2008 |
| 7321058 | Method for producing acrolein and/or acrylic acid Acrolein and/or acrylic acid are prepared from propane and/or propene by a process comprising the following steps: (a) separation of propane and/or propene from a propane- and/or propene-containing gas mixture by absorption in an absorbent, (b) separation of the pro... | 01/22/2008 |
| 7291761 | Partial dehydrogenation method using continuous heterogeneous catalysis A process for the continuous heterogeneously catalyzed partial dehydrogenation of a hydrocarbon in the gas phase and in the presence of molecular oxygen, in which part of the product gas is recirculated to the reaction zone, and a reactor for carrying out such a pro... | 11/06/2007 |
| 7271307 | Method for improving the performance of a dehydrogenation catalyst The present development relates to a modification of the Houdry process for the dehydrogenation of aliphatic hydrocarbons, whereby the dehydrogenation cycle is extended, or lengthened, and hydrogen gas is added into the reaction. The combination of the extended cycl... | 09/18/2007 |
| 7262334 | Catalytic partial oxidation of hydrocarbons A process for the production of a reaction product including a carbon containing compound. The process includes providing a film of a fuel source including at least one organic compound on a wall of a reactor, contacting the fuel source with a source of oxygen, form... | 08/28/2007 |
| 7256306 | Arylalkylsulfonic acids and methods for producing same This invention relates new and improved processes for the preparation of arylalkylsulfonic acids derived from aromatic or substituted aromatic molecules and AOS acid (generally a mixture of alkenesulfonic acid and sultones, produced from the sulfonation of alpha ole... | 08/14/2007 |
| 7244872 | Production of olefins Process for producing mono-olefins from a paraffin-containing hydrocarbon feed, comprising partially combusting a mixture of the hydrocarbon feed and a molecular oxygen-containing gas in contact with a catalyst capable of supporting combustion beyond the normal fuel... | 07/17/2007 |
| 7235684 | Process for preparing (branched-alkyl) arylsulfonates and a (branched-alkyl) arylsulfonate composition A process for preparing branched alkyl aromatic hydrocarbons, which process comprises contacting branched olefins with an aromatic hydrocarbon under alkylating conditions, which branched olefins have been obtained by a process which comprises dehydrogenating an isop... | 06/26/2007 |
| 7227049 | Ni catalysts and methods for alkane dehydrogenation Catalysts and methods for alkane oxydehydrogenation are disclosed. The catalysts of the invention generally comprise (i) nickel or a nickel-containing compound and (ii) at least one or more of titanium (Ti), tantalum (Ta), niobium (Nb), hafnium (Hf), tungsten (W), y... | 06/05/2007 |
| 7223897 | Process for the production of olefins A process for the production of an olefin from a hydrocarbon by autothermal cracking, which process comprises: partially combusting the hydrocarbon and an oxygen-containing gas in the presence of a catalyst, wherein the stoichiometric ratio of hydrocarbon to oxygen ... | 05/29/2007 |
| 7220701 | Catalyst and process for selective hydrogenation A selective hydrogenation catalyst composition comprises a rhodium component present in an amount such that the catalyst composition comprises less than 3.0% of rhodium by weight of the total catalyst composition; and an indium component present in an amount such th... | 05/22/2007 |
| 7164053 | Process for the production of olefins Process for the production of an olefin from a hydrocarbon, which process comprises contacting the hydrocarbon and a molecular oxygen-containing gas with a catalyst under auto-thermal conditions sufficient to produce the olefin. The catalyst comprises a component (a... | 01/16/2007 |
| 7145051 | Combined oxydehydrogenation and cracking catalyst for production of olefins A catalyst is provided comprising (1) at least one solid acid component, and (2) at least one metal-based component comprised of one or more element from Groups 1–3, one or more element from Groups 4–15 and one or more element from Groups 16 and 17 of the Period... | 12/05/2006 |
| 7087802 | Method for the dehydrogenation of hydrocarbons In a process for the heterogeneously catalyzed dehydrogenation in one or more reaction zones of one or more dehydrogenatable C2-C30-hydrocarbons in a reaction gas mixture comprising them, with at least part of the heat of dehydrogenation requir... | 08/08/2006 |
| 7087777 | Process for preparing a branched olefin, a method of using the branched olefin for making a surfactant, and a surfactant A process for preparing branched olefins comprising 0.5% or less quaternary aliphatic carbon atoms, which process comprises dehydrogenating an isoparaffinic composition over a suitable catalyst which isoparaffinic composition comprises paraffins having a carbon numb... | 08/08/2006 |
| 7071371 | Gel catalysts and methods for their use in catalytic dehydrogenation processes A gel composition substantially contained within the pores of a solid material is disclosed for use as a catalyst or as a catalyst support in dehydrogenation and dehydrocyclization processes. ... | 07/04/2006 |
| 7053257 | Process for preparing (branched-alkyl) arylsulfonates and a (branched-alkyl) arylsulfonate composition A process for preparing branched alkyl aromatic hydrocarbons, which process comprises contacting branched olefins with an aromatic hydrocarbon under alkylating conditions, which branched olefins have been obtained by a process which comprises dehydrogenating an isop... | 05/30/2006 |
| 7041866 | Solid-acid isomerization catalyst and process A catalyst and process is disclosed to selectively upgrade a paraffinic feedstock to obtain an isoparaffin-rich product for blending into gasoline. The catalyst comprises a support of a sulfated oxide or hydroxide of a Group IVB (IUPAC 4) metal, a first component co... | 05/09/2006 |
| 7012038 | Paraffin dehydrogenation catalyst One aspect of the invention relates to a dehydrogenation catalyst composite containing alumina, chromium oxide, lithium oxide, and sodium oxide. The invention also relates to methods of making the dehydrogenation catalyst composite. Another aspect of the invention r... | 03/14/2006 |
| 7001332 | Surgical deflector tool A suture deflector for retracting a body tissue by deflecting a surgical suture that is simultaneously attached to a body tissue and a surgical retractor. The suture deflector imparts a deflecting force on the surgical suture to retract a body tissue between a first... | 02/21/2006 |
| 6977322 | Isomerization catalyst and processes A catalyst and process is disclosed to selectively upgrade a paraffinic feedstock to obtain an isoparaffin-rich product for blending into gasoline. The catalyst comprises a support of a tungstated oxide or hydroxide of a Group IVB (IUPAC 4) metal, a first component ... | 12/20/2005 |
| 6969496 | Apparatus with increased yield and selectivity using side-by-side reaction zones An apparatus provides for increased feed throughput without loss of conversion or selectivity by increasing the catalyst volume in a final reactor of at least three reaction zones. The catalyst volume of the final reactor may be larger because the inner and outer sc... | 11/29/2005 |
| 6963018 | Integrated processes for olefin and polyolefin production Novel processes for the production of polyolefins, other polymers, and oxygenated compounds, such as polypropylene, polyethylene, polybutene-1, poly(isobutylene), polystyrene, poly(1,3-butadiene), ethylene oxide, propylene oxide, acrylonitrile, acrolein and others, ... | 11/08/2005 |
| 6930219 | Mesoporous material with active metals A process for treating organic compounds includes providing a composition which includes a substantially mesoporous structure of silica containing at least 97% by volume of pores having a pore size ranging from about 15 Å to about 30 Å and having a micropore vol... | 08/16/2005 |
| 6916756 | Regeneration of a dehydrogenation catalyst A process for regenerating a dehydrogenation catalyst comprises the steps (a)-(f): (a) flushing with inert gas at a pressure of from 0.5 to 2.0 bar and a gas hourly velocity of from 1000 to 50 000 h−1; (b) passing an oxygen-con... | 07/12/2005 |
| 6909009 | Alkane and alkane group dehydrogenation with organometallic catalysts Novel polynuclear organometallic complexes useful as catalysts for the reversible deshydrogenation of alkanes and alkane group are disclosed. The novel compounds comprise a first transition, a second transition metal p-bonded to an ?5-aromatic ligand, and a pincer l... | 06/21/2005 |
| 6858769 | Lithium aluminate layered catalyst and a selective oxidation process using the catalyst A catalyst for the selective oxidation of hydrogen has been developed. It comprises an inert core such as cordierite and an outer layer comprising a lithium aluminate support. The support has dispersed thereon a platinum group metal and a promoter metal, e.g. platin... | 02/22/2005 |
| 6841712 | Process for the dehydrogenation of ethylbenzene to styrene A process is described for the dehydrogenation of ethylbenzene to styrene in a fluid-bed reactor-regenerator system, which uses a catalyst based on iron oxide supported on a modified alumina and promoted with further metal oxides. ... | 01/11/2005 |
| 6831204 | MCrAlY supported catalysts for oxidative dehydrogenation of alkanes A new family of oxidative dehydrogenation catalysts having MCrAlY supports can be used in the production of olefins. Olefins are produced by heating a feed stream comprising at least an alkane and an oxidant to a temperature between 25° C. and 800° C.; contacting ... | 12/14/2004 |
| 6756517 | Lower alkane oxidative dehydrogenation catalysts and a process for producing olefins Lower alkenes of from 2 to 5 carbon atoms, such as propene, are produced by the vapor phase catalytic oxidative dehydrogenation of lower alkane, such as propane, using a mixed metal oxide catalyst of formula (1) as decribed, containing manganese and at least one add... | 06/29/2004 |
| 6756515 | Dehydrogenation process using layered catalyst composition This invention relates to a dehydrogenation process using a layered catalyst composition. The catalyst composition comprises an inner core such as alpha-alumina, and an outer layer bonded to the inner core composed of an outer refractory inorganic oxide such as gamm... | 06/29/2004 |
