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| Number | Title | Issue Date |
| 7910784 | Process for the production of styrene monomer by improving energy efficiency and injecting a recycle gas into the EB vaporizer This invention relates to a process for the production of styrene monomer by the dehydrogenation or oxidative dehydrogenation of ethylbenzene in the presence of recycle gas and more particularly to a method of reducing the boiling point of liquid ethylbenzene feed i... | 03/22/2011 |
| 7663009 | Process for the manufacture of an alkenyl aromatic compound under low steam-to-oil process conditions An improved dehydrogenation process that comprises the dehydrogenation of dehydrogenatable hydrocarbons by the utilization of an iron oxide based dehydrogenation catalyst composition having a low titanium content under low steam-to-oil process conditions. ... | 02/16/2010 |
| 7595427 | Process for production of styrene by catalytic gas phase dehydrogenation of ethylbenzene Process for production of styrene by dehydrogenation of ethylbenzene in a reactor system comprising a dehydrogenation reactor and a fast riser catalyst regenerator. ... | 09/29/2009 |
| 7569738 | Method and apparatus for addition of aqueous solutions to high temperature processes Methods and systems for extending the life of a dehydrogenation catalyst are described herein. For example, one embodiment includes providing a reaction vessel loaded with a dehydrogenation catalyst with a feedstream via a conduit in operable communication with the ... | 08/04/2009 |
| 7435862 | 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 t... | 10/14/2008 |
| 7411101 | Production of alkylaromatic compounds A process for producing a monoalkylation aromatic product, such as ethylbenzene and cumene, utilizing an alkylation reactor zone and a transalkylation zone in series or a combined alkylation and transkylation reactor zone. ... | 08/12/2008 |
| 7294734 | Process for converting a hydrocarbon to an oxygenate or a nitrile This invention relates to a process for converting a hydrocarbon reactant to a product comprising an oxygenate or a nitrile, the process comprising: (A) flowing a reactant composition comprising the hydrocarbon reactant, and oxygen or a source of oxygen, and optiona... | 11/13/2007 |
| 7282619 | Method of operating a dehydrogenation reactor system Described is a method for operating and shutting down a dehydrogenation reactor that contains a volume of dehydrogenation catalyst. After termination of the introduction of a dehydrogenation feed into the dehydrogenation reactor that is operated under dehydrogenatio... | 10/16/2007 |
| 7271126 | Catalyst for the dehydrogenation of ethyl benzene to STYRENE prepared with a high purity iron precursor A method for producing a catalyst for use in the dehydrogenation of ethylbenzene to styrene is disclosed. The catalyst of the present invention comprises a high purity metal and at least one promoter in the form of solid oxides, oxide hydrates, hydroxides, hydroxyca... | 09/18/2007 |
| 7255845 | Process for conducting an equilibrium limited chemical reaction in a single stage process channel This invention relates to a process for conducting an equilibrium limited chemical reaction in a single stage process channel. A process for conducting a water shift reaction is disclosed. A multichannel reactor with cross flow heat exchange is disclosed. ... | 08/14/2007 |
| 7244868 | Process for the dehydrogenation of an unsaturated hydrocarbon A process for the catalytic dehydrogenation of a first unsaturated hydrocarbon to form a second unsaturated hydrocarbon which has one olefinically unsaturated bond more than the first unsaturated hydrocarbon and otherwise an unchanged carbon skeleton, which process ... | 07/17/2007 |
| 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 |
| 7226574 | Oxidation process using microchannel technology and novel catalyst useful in same A process is disclosed for converting a hydrocarbon reactant to a product comprising CO and H2. The process comprises: (A) flowing a reactant composition comprising the hydrocarbon reactant and oxygen or a source of oxygen through a microchannel reactor i... | 06/05/2007 |
| 7220390 | Microchannel with internal fin support for catalyst or sorption medium This invention relates to an apparatus, comprising: at least one process microchannel having a height, width and length, the height being up to about 10 mm, the process microchannel having a base wall extending in one direction along the width of the process microch... | 05/22/2007 |
| 7220700 | Catalyst and process for selective hydrogenation A selective hydrogenation catalyst composition comprises a support; a first metal component comprising rhodium; and a second metal component comprising a metal other than rhodium and selected from Groups 1 to 15 of the Periodic Table of Elements, wherein said first ... | 05/22/2007 |
| 7186395 | Iron oxides with a higher degree of refining Iron oxides are upgraded by calcining at from 700 to 1200° C. ... | 03/06/2007 |
| 7169960 | 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 productio... | 01/30/2007 |
| 7153801 | Aromatization catalyst and methods of making and using same A method of making a catalyst composition, comprising impregnating a large pore zeolite support with a platinum precursor and at least one organic ammonium halide precursor. In an embodiment, the ammonium halide precursor is represented by the formula N(R)4 | 12/26/2006 |
| 7125817 | Combined cracking and selective hydrogen combustion for catalytic cracking A catalyst system and process for combined cracking and selective hydrogen combustion of hydrocarbons are disclosed. The catalyst comprises (1) at least one solid acid component, (2) at least one metal-based component comprised of one or more elements from Group 3 a... | 10/24/2006 |
| 7122492 | Combined cracking and selective hydrogen combustion for catalytic cracking A catalyst system and process for combined cracking and selective hydrogen combustion of hydrocarbons are disclosed. The catalyst comprises (1) at least one solid acid component, (2) at least one metal-based component comprised of one or more elements from Groups 1 ... | 10/17/2006 |
| 7084180 | Fischer-tropsch synthesis using microchannel technology and novel catalyst and microchannel reactor The disclosed invention relates to a process for converting a reactant composition comprising H2 and CO to a product comprising at least one aliphatic hydrocarbon having at least about 5 carbon atoms, the process comprising: flowing the reactant compositi... | 08/01/2006 |
| 7029647 | Process for producing hydrogen peroxide using microchannel technology This invention relates to a process for making hydrogen peroxide in a microchannel reactor. The process comprises flowing a process feed stream and a staged addition feed stream in a process microchannel in contact with each other to form a reactant mixture comprisi... | 04/18/2006 |
| 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 |
| 7002052 | Integrated process for producing an alkenyl-substituted aromatic compound An integrated process of preparing a C2-5 alkenyl-substituted aromatic compound using a C6-12 aromatic compound and a C2-5 alkane as raw materials. The process involves feeding a C2-5 alkane, for example ethane, and a C | 02/21/2006 |
| 6969505 | Process for conducting an equilibrium limited chemical reaction in a single stage process channel This invention relates to a process for conducting an equilibrium limited chemical reaction in a single stage process channel. A process for conducting a water shift reaction is disclosed. A multichannel reactor with cross flow heat exchange is disclosed. ... | 11/29/2005 |
| 6958427 | Method for catalytic dehydrogenation of hydrocarbons using carbon dioxide as a soft oxidant The present invention relates to a method for catalytic dehydrogenation of alkylaromatic hydrocarbons and more particularly, to a method for catalytic dehydrogenation of alkylaromatic hydrocarbons using carbon dioxide as a soft oxidant in the presence of a heterogen... | 10/25/2005 |
| 6936743 | Method for extending catalyst life in processes for preparing vinyl aromatic hydrocarbons Disclosed is a method for extending the life of dehydrogenation catalysts used to prepare vinyl aromatic hydrocarbons. The catalysts, which typically include both iron oxide and potassium containing catalysis promoter, are exposed to additional potassium delivered u... | 08/30/2005 |
| 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 |
| 6884915 | Process for producing styrene The present invention is a process for producing styrene by dehydrogenation of ethylbenzene, which contains the steps of (i) feeding a raw material gas containing ethylbenzene and steam to a first dehydrogenating step to produce a reacted gas containing ethylbenzene... | 04/26/2005 |
| 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 |
| 6781024 | Dehydrogenation process Process for the catalytic dehydrogenation of a C2 or C3 alkyl aromatic in which a feedstock containing the alkyl aromatic and steam is supplied into the inlet of a tubular reactor containing a dehydrogenation catalyst. Within the reactor, the f... | 08/24/2004 |
| 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 |
| 6743959 | Method for the dehydrogenation of triisopropyl benzene and diisopropyl benzene An economical and industrial method for the dehydrogenation of triisopropyl benzene can be provided by carrying out the reaction employing a solid catalyst having an iron compound and potassium compound as major components or an iron compound, potassium compound, an... | 06/01/2004 |
| 6600082 | Process for dehydrogenating organic compounds in the presence of a supported bimetallic catalyst with a strong interaction between a group VIII metal and tin A process for dehydrogenating organic compounds, in particular paraffins and naphthenes, is carried out in the presence of a supported catalyst comprising a group VIII metal such as platinum, and tin, at least a portion of which interacts strongly with th... | 07/29/2003 |
| 6551958 | Catalyst for dehydrogenating ethyl benzene to produce styrene A process for the preparation of a catalyst comprising iron oxide, potassium oxide, a magnesium compound and a cerium compound, wherein the catalyst has one or more Fe/K phases K2 O.Fe2 O3 1:n, where n is a natural number ... | 04/22/2003 |
| 6544408 | Process and installation for the production of aromatic compounds in a fixed bed Process for the production of aromatic compounds, such as reforming, that uses at least one fixed catalyst bed with a base of platinum and 0.08% rhenium. In said process, before moving onto the bed, the feedstock undergoes a heat exchange with the effluen... | 04/08/2003 |
| 6531638 | Process for the preparation of catalytic systems for the oxidative dehydrogenation of alkylaromatics or paraffins Process for preparing catalytic systems consisting of: a vanadium oxide; a bismuth oxide; and a carrier consisting of magnesium oxide, comprising: preparing of solutions based on derivatives of the components of the catalytic system; mixing the solutions and option... | 03/11/2003 |
| 6525232 | Process and apparatus for endothermic reactions of organic compounds The invention provides process and apparatus for conducting an endothermic reaction of an organic compound in the presence of molecular hydrogen and of multicomponent solids. The process comprises contacting the compound with a solid catalyst for the endo... | 02/25/2003 |
| 6511593 | Homogeneous bed of catalyst and a process for transforming hydrocarbons into aromatic compounds using said bed The invention relates to a homogeneous bed of catalyst particles comprising at least one amorphous matrix, at least one noble metal, at least one additional metal M and at least one halogen, and in which, for a catalyst particle: CPt is the loc... | 01/28/2003 |
| 6486370 | 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 s... | 11/26/2002 |
