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| Number | Title | Issue Date |
| 7655704 | Hydrocarbon synthesis process using an alkali promoted iron catalyst This invention relates to a high temperature Fischer-Tropsch (HTFT) hydrocarbon synthesis process comprising the conversion of a feed of H2 and at least one carbon oxide to hydrocarbons containing at least 30% on a mass basis hydrocarbons with five or mor... | 02/02/2010 |
| 7598295 | Use of a source of chromium with a precipitated catalyst in a Fischer-Tropsch reaction According to the present invention there is provided the use of a source of chromium in combination with a precipitated iron catalyst in a high temperature Fischer-Tropsch process to convert CO and H2 to hydrocarbons and possibly oxygenates thereof. In th... | 10/06/2009 |
| 7393876 | Fischer-tropsch catalysts Catalyst compositions and methods for F-T synthesis which exhibit high CO conversion with minor levels (preferably less than 35% and more preferably less than 5%) or no measurable carbon dioxide generation. F-T active catalysts are prepared by reduction of certain o... | 07/01/2008 |
| 7393877 | Process for the conversion of a synthesis gas to hydrocarbons in the presence of beta-SiC and effluent from this process In a process for the conversion of carbon monoxide to C2+ hydrocarbons in the presence of hydrogen and of a catalyst comprising a metal and a support comprising silicon carbide, the support comprises more than 50% by weight of silicon carbide i... | 07/01/2008 |
| 7342051 | Introduction of an acid in a Fischer-Tropsch process A three-phase low temperature Fischer-Tropsch (LTFT) process wherein CO and H2 are converted to hydrocarbons and possibly oxygenates thereof by contacting the CO and H2 with an iron-based Fischer-Tropsch catalyst in a LTFT reactor in the presen... | 03/11/2008 |
| 7300959 | Fischer-Tropsch process using a Fischer-Tropsch catalyst and zeolite Y Fischer-Tropsch process for the conversion of carbon monoxide and hydrogen to C5+ hydrocarbon mixtures in which process use is made of Fischer-Tropsch catalyst particles and particles comprising zeolite Y with a water adsorption capacity (25° ... | 11/27/2007 |
| 7259286 | Attrition resistant bulk iron catalysts and processes for preparing and using same An attrition resistant precipitated bulk iron catalyst is prepared from iron oxide precursor and a binder by spray drying. The catalysts are preferably used in carbon monoxide hydrogenation processes such as Fischer-Tropsch synthesis. These catalysts are suitable fo... | 08/21/2007 |
| 7230035 | Catalysts for the conversion of methane to synthesis gas The present invention relates to improved catalyst compositions, as well as methods of making and using such compositions to prepare synthesis gas and ultimately C5+ hydrocarbons. In particular, preferred embodiments of the present invention comprise cata... | 06/12/2007 |
| 7157501 | Fischer-tropsch process using a fischer-tropsch catalyst and a zeolite-containing catalyst Fischer-Tropsch process for the conversion of carbon monoxide and hydrogen to C5+ hydrocarbon mixtures in which process use is made of Fischer-Tropsch catalyst particles and fluid catalytic cracking (FCC) catalyst particles. The FCC catalyst ca... | 01/02/2007 |
| 7115669 | Minimizing the volume or maximizing the production rate of slurry bubble reactors by using large gas flow rates and moderate single pass conversion A gas-agitated multiphase reactor system that is effective for enabling maximum reactor productivity or minimizing reactor volume comprising at least two stages with or without recycle, wherein inlet gas superficial velocity is at least 20 cm/sec at Fischer-Tropsch ... | 10/03/2006 |
| 7105706 | Process for the preparation of an alkoxylated alcohol composition Process for the preparation of an alkoxylated alcohol composition comprising one or more alkoxylated alcohols wherein the process comprises the steps of: (a) reacting carbon monoxide with hydrogen under Fischer-Tropsch reaction con... | 09/12/2006 |
| 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 |
| 7045554 | Method for improved Fischer-Tropsch catalyst stability and higher stable syngas conversion The present invention is generally related towards methods for preparing and using a more stable synthesis catalysts. In particular, the present invention is directed towards treating synthesis catalysts with low levels of oxygen to deactivate the smaller more unsta... | 05/16/2006 |
| 7012103 | Commercial fischer-tropsch reactor A process for producing hydrocarbons comprises providing a multi-tubular reactor having at least 100 tubes units containing a catalyst, each tube being between 2 and 5 meters tall and in thermal contact with a cooling fluid; feeding hydrogen and carbon monoxide to e... | 03/14/2006 |
| 7012104 | Fischer-Tropsch processes and catalysts made from a material comprising boehmite A hydrothermally-stable catalyst, method for making the same, and process for producing hydrocarbon, wherein the catalyst is used in synthesis gas conversion to hydrocarbons. In one embodiment, the method comprises depositing a compound of a catalytic metal selected... | 03/14/2006 |
| 7011809 | Attrition resistant gamma-alumina catalyst support A γ-alumina catalyst support having improved attrition resistance produced by a method comprising the steps of treating a particulate γ-alumina material with an acidic aqueous solution comprising water and nitric acid and then, prior to adding any catalytic materi... | 03/14/2006 |
| 7001579 | Method for producing highly purified, granular silicium The invention relates to a method for producing granular silicon by thermal decomposition of a gas containing silicon in a fluidized bed, said decomposition occurring in the presence of free-flowing mobile elements. Preferably, said free-flowing mobile elements beco... | 02/21/2006 |
| 7001927 | Water removal in Fischer-Tropsch processes A method for water removal in hydrocarbon product reactors operating at Fischer-Tropsch conditions. The water removal decreases the concentration of water in the reactor. In one embodiment, a method of reducing the concentration of water in a Fischer-Tropsch reactor... | 02/21/2006 |
| 6992114 | Control of COemissions from a Fischer-Tropsch facility by use of multiple reactors CO2 emissions from Fischer-Tropsch facilities are controlled by using multiple reactors. A process for the conversion of syngas using multiple Fischer-Tropsch reactors comprises reacting at least a portion of a first syngas in a first Fischer-Tropsch reac... | 01/31/2006 |
| 6992112 | Selective removal of oxygen from syngas The present invention is an improvement in the preparation of liquid hydrocarbons from natural gas/methane, oxygen and/or steam. In particular, the present invention relates to processes for the production of synthesis gas, reducing the oxygen concentration from the... | 01/31/2006 |
| 6958363 | Hydrogen use in a GTL plant The present invention provides a process for managing hydrogen in a hydrocarbon gas to liquid plant. The process includes passing a syngas feed stream produced by a partial oxidation reactor to a Fischer-Tropsch reactor, thereby converting the syngas to hydrocarbon ... | 10/25/2005 |
| 6956063 | Method for reducing water concentration in a multi-phase column reactor The present invention relates to a method and apparatus for water removal in multi-phase reactors operating at Fischer-Tropsch conditions. In a preferred embodiment of the present invention, a method of reducing the concentration of water in a multi-phase reactor fo... | 10/18/2005 |
| 6951893 | Heat treated Fischer-Tropsch catalyst particles The invention provides heat treated self-supported precipitated iron-based Fischer-Tropsch catalyst particles. The particles of the present invention are breakage resistant and exhibit superior synthesis performance. The invention also provides a method for producin... | 10/04/2005 |
| 6946493 | Managing hydrogen in a gas to liquid plant The present invention provides a process for managing hydrogen in a hydrocarbon gas to liquid plant. The process includes feeding a syngas stream produced by a partial oxidation reactor to a Fischer-Tropsch reactor, thereby converting the syngas to hydrocarbon liqui... | 09/20/2005 |
| 6933324 | Method for performing a Fischer-Tropsch process using an iron-containing layered material A method for performing a Fischer-Tropsch process using as a catalyst (precursor) an iron-containing layered material selected from the group consisting of layered materials in which iron is present in the layered structure as divalent and/or trivalent metal (group ... | 08/23/2005 |
| 6914082 | Slurry bubble reactor operated in well-mixed gas flow regime A gas-agitated multiphase reactor system for the synthesis of hydrocarbons gives high catalyst productivity and reactor capacity. The system includes operating a multi-phase reactor in the well-mixed gas flow regime, with a Peclet number less than 0.175 and a single... | 07/05/2005 |
| 6903141 | Slurry-phase skeletal iron catalyst process for synthesis gas conversion to hydrocarbons A continuous process is disclosed for the production of hydrocarbon liquids and wax by Fischer-Tropsch conversion of synthesis gas in contact with promoted skeletal iron catalyst particles in a slurry reactor. Wax product is readily separated from the skeletal iron ... | 06/07/2005 |
| 6864293 | Production of liquid and, optionally, gaseous products from gaseous reactants A process for producing liquid and, optionally, gaseous products from gaseous reactants includes feeding, at a low level, gaseous reactants into a slurry bed, allowing the gaseous reactants to react as they pass upwardly through the slurry bed, withdrawing any gaseo... | 03/08/2005 |
| 6855737 | Fischer-tropsch process A process for the production of liquid hydrocarbon products from synthesis gas in a system comprising a reaction zone and a gas separation zone wherein the process comprises: a) in the reaction zone, contacting synthesis gas at elevated temperature and pressure with... | 02/15/2005 |
| 6844370 | Hydrocarbon synthesis catalyst and process According to the present invention there is provided a hydrocarbon synthesis catalyst comprising a precipitated iron product and a catalyst promotor. The catalyst has a surface area of below 60 m2 per gram of catalyst in the reduced form or below 100 m | 01/18/2005 |
| 6809123 | Production of hydrogen and higher hydrocarbons A carbon-bearing feedstock is reacted with oxygen and water in a partial oxidation reactor to produce a mixture of hydrogen and carbon monoxide. The hydrogen is removed as a first product and the remaining carbon monoxide is reacted with steam over a bifunctional ca... | 10/26/2004 |
| 6787577 | Process for the production of highly branched Fischer-Tropsch products and potassium promoted iron catalyst Process for increasing the branching in products from a slurry-type Fischer-Tropsch unit by use of potassium promoted iron-based catalyst, an integrated process for increasing the yield of lubricating base oils, and an iron-based Fischer-Tropsch catalyst composition... | 09/07/2004 |
| 6777452 | Promoted skeletal iron catalysts for Fischer-Tropsch synthesis processes Promoted skeletal iron catalysts are provided which contain 70-90 wt % iron together with promoters 0-5.0 wt. % copper, 0.1-10.0 wt. % manganese, and 0.1-3.0 wt. % potassium, with the balance being aluminum. The catalysts are prepared by mixing the metal chips or po... | 08/17/2004 |
| 6774149 | How to convert carbon monoxide into synthetic petroleum by a process of catalytic hydrogenation called COpetrolisation The process called COpetrolisation uses two catalysts instead of one, converting CO into C7H16. Addition of a NaCl catalyst to a FeO catalyst improves the efficiency of Fischer's process because the salt catalyst retains humidity. Furthermore, chlorine opens chemica... | 08/10/2004 |
| 6765026 | Process for carbon monoxide hydrogenation A process for the preparation of a catalyst useful for conducting carbon monoxide hydrogenation reactions, particularly Fischer-Tropsch reactions; the catalyst compositions, use of the catalyst compositions for conducting such reactions, and the products of these re... | 07/20/2004 |
| 6740683 | Chemicals from synthesis gas This invention relates to a process for selectively producing linear alcohols, olefins and paraffins from hydrogen-poor carbonaceous fuels such as coal, petroleum coke, or heavy residue oil in a Fischer-Tropsch reactor. The process includes producing synthesis gas, ... | 05/25/2004 |
| 6716886 | Fischer-tropsch catalyst enhancement (JSS-0005) A process of enhancing both the activity and the methane selectivity of a Dispersed Active Metal (“DAM”) hydrogenation catalyst is disclosed wherein the DAM undergoes low temperature oxidation in a slurry phase to form a stable, unique oxidized catalyst precurso... | 04/06/2004 |
| 6716790 | Heat treated Fischer-Tropsch catalyst particles The invention provides heat treated self-supported precipitated iron-based Fischer-Tropsch catalyst particles. The particles of the present invention are breakage resistant and exhibit superior synthesis performance. The invention also provides a method for producin... | 04/06/2004 |
| 6689819 | Supported cobalt-based catalyst A supported cobalt-based catalyst, characterized in that the carrier has an average particle diameter, measured by Coulter LS230, ranging from 70 to 250 μm, a surface area higher than 175 m2 /g and a pore volume higher than 0.35 cm3... | 02/10/2004 |
| 6627666 | Fischer-Tropsch synthesis using industrial process off gas feedstreams A process is described in which the waste gas from the production of acetylene is employed in the Fischer-Tropsch synthesis of hydrocarbon liquids. The process consists of the steps of collecting the waste gas, compressing it to the proper pressure, passi... | 09/30/2003 |
