Gaseous Oxygen Utilized In The Preliminary Reaction Patents (Class 518/703)
  • Publication number: 20110294907
    Abstract: In various implementations, methanol is produced using a (CO+H2) containing synthesis gas produced from a combined PDX plus EHTR or a combined ATR plus EHTR at a pressure of 70 bar to 100 bar at the correct stoichiometric composition for methanol synthesis so that no feed gas compressor is required for the feed to the methanol synthesis reactor loop.
    Type: Application
    Filed: May 25, 2011
    Publication date: December 1, 2011
    Applicant: GTLpetrol LLC
    Inventor: Rodney J. Allam
  • Patent number: 8053481
    Abstract: A Fischer-Tropsch process for producing diesel fuel or diesel blending stock with a high cetane number, in a concentration of 65-90 wt % at pressures below 200 psia, using a cobalt catalyst with a rhenium and/or ruthenium promoter. The catalyst is a cobalt catalyst with crystallites having an average diameter greater than 16 nanometers, and the resulting hydrocarbon product after a rough flash, contains less than 10 wt % waxes (>C23).
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: November 8, 2011
    Assignee: WM GTL, Inc.
    Inventor: Conrad Ayasse
  • Publication number: 20110257276
    Abstract: Higher molecular weight hydrocarbon compounds or oxygenates are produced from a gas comprising methane in a process comprising the steps of generating synthesis gas (“syngas”) comprising carbon monoxide and hydrogen by reaction of a gas comprising methane with steam and/or an oxidant gas comprising oxygen, producing higher molecular weight hydrocarbon compounds or oxygenates in a syngas conversion process, removing offgas comprising unreacted hydrogen and unreacted carbon monoxide from said syngas conversion process and separating cryogenically unreacted hydrogen from said offgas or from a gas derived therefrom to produce separated hydrogen product that is substantially free of unreacted carbon monoxide and a first cryogenic liquid comprising unreacted carbon monoxide. The unreacted hydrogen is preferably separated from the offgas in a liquid methane wash column.
    Type: Application
    Filed: January 14, 2011
    Publication date: October 20, 2011
    Applicant: GTLPetrol LLC
    Inventors: Rodney Allam, Andrew Weaver, Vincent White, David B. Byard
  • Publication number: 20110196049
    Abstract: A process and a system are disclosed for producing methanol from synthesis gas. The synthesis gas is a stream containing H2, CO, and CO2 that is created using a nitrogen containing oxidant stream, such as air. The synthesis gas is then reacted through a conventional reactor system to create methanol. Unreacted synthesis gas is recycled back through the reactor system. The disclosed methanol production process can be mounted and operated on a seagoing vessel.
    Type: Application
    Filed: August 13, 2010
    Publication date: August 11, 2011
    Inventor: Lowell D. Fraley
  • Patent number: 7989507
    Abstract: The present invention is directed to a method for utilizing CO2 waste comprising recovering carbon dioxide from an industrial process that produces a waste stream comprising carbon dioxide in an amount greater than an amount of carbon dioxide present in starting materials for the industrial process. The method further includes producing hydrogen using a renewable energy resource and producing a hydrocarbon material utilizing the produced hydrogen and the recovered carbon dioxide.
    Type: Grant
    Filed: May 20, 2008
    Date of Patent: August 2, 2011
    Assignee: Siemens Aktiengesellschaft
    Inventor: Bruce W. Rising
  • Patent number: 7989511
    Abstract: A process and apparatus for preparing a synthesis gas suitable for feeding to a suitable hydrocarbon production reactor, such as a Fischer Tropsch reactor is described. According to one aspect, the process and apparatus utilize heat exchangers that thermally integrate the reaction steps such that heat generated by exothermic reactions, e.g., combustion, are arranged closely to the heat sinks, e.g., cool methane, water and air, to minimize heat loss and maximize heat recovery. Effectively, this thermal integration eliminates excess piping throughout, reduces initial capital and operating costs, provides built-in passive temperature control, and improves synthesis gas production efficiencies.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: August 2, 2011
    Assignee: Texaco Inc.
    Inventors: Daniel Glenn Casey, Lixin You, Curtis Lee Krause, Kevin Hoa Nguyen
  • Patent number: 7989509
    Abstract: In various implementations, various feed gas streams which include hydrogen and carbon monoxide may be processed for conversion to product streams. For example, the feed gas stream may be processed using the Fischer-Tropsch process. Unconverted hydrogen and carbon monoxide can be recycled using an off-gas catalytic reformer and a gas turbine exhaust gas heat exchanger that will perform preheating duties.
    Type: Grant
    Filed: June 19, 2009
    Date of Patent: August 2, 2011
    Assignee: GTLpetrol LLC
    Inventor: Rodney J. Allam
  • Patent number: 7932296
    Abstract: Systems and methods for producing syngas are provided. A first hydrocarbon can be partially oxidized in the presence of an oxidant and one or more first catalysts at conditions sufficient to partially combust a portion of the first hydrocarbon to provide carbon dioxide, non-combusted first hydrocarbon, and heat. The non-combusted first hydrocarbon can be reformed in the presence of the heat generated in the partial oxidation step and the one or more first catalysts to provide a first syngas. Heat can be indirectly exchanged from the first syngas to a second hydrocarbon to reform at least a portion of the second hydrocarbon in the presence of steam and one or more second catalysts to provide a second syngas. A syngas, which can include the at least a portion of the first syngas, at least a portion of the second syngas, or a mixture thereof can be converted to provide one or more Fischer-Tropsch products, methanol, derivatives thereof, or combinations thereof.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: April 26, 2011
    Assignee: Kellogg Brown & Root LLC
    Inventors: Avinash Malhotra, David P. Mann
  • Patent number: 7919065
    Abstract: A gasification plant and methods for producing ammonia, Fischer-Tropsch fuels, electrical power, and/or sulfur from carbon-bearing feedstocks including coal and/or petroleum coke. Methods for production of desired relative amounts of ammonia and Fischer-Tropsch liquid hydrocarbons by adjusting the amount of synthesis gas bypassing the Fischer-Tropsch reactor. The multi-product and integrated plants may be used to reduce the amount of CO2 vented into the atmosphere during the production of these products.
    Type: Grant
    Filed: April 21, 2010
    Date of Patent: April 5, 2011
    Assignee: Rentech, Inc.
    Inventors: Peter S. Pedersen, Dennis L. Yakobson
  • Patent number: 7910787
    Abstract: An apparatus and method of producing methanol includes reacting a heated hydrocarbon-containing gas and an oxygen-containing gas in a reactor; to provide a product stream comprising methanol; and transferring heat from the product stream to the hydrocarbon-containing gas to heat the hydrocarbon containing gas. After removing methanol and CO2 from the product stream, unprocessed hydrocarbons are mixed with the hydrocarbon containing gas for reprocessing through the reactor. Reactor byproducts are injected into the ground to increase the output of a hydrocarbon producing well.
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: March 22, 2011
    Assignee: Gas Technologies LLC
    Inventors: Nathan A Pawlak, Walter Breidenstein, Robert W. Carr
  • Patent number: 7910629
    Abstract: The GTL process of the invention comprises: reacting a combustible carbonaceous material in a syngas reactor, preferably an autothermal reformer, under conditions to produce a synthesis gas; contacting the synthesis gas with an F-T catalyst to form liquid products and a tail gas; separating the tail gas from the liquid products; separating CO2 from the light products in the tail gas; recovering the light products as additional products for sale or other use and utilizing at least a portion of the separated CO2 as a feed stream to the syngas reactor.
    Type: Grant
    Filed: September 25, 2007
    Date of Patent: March 22, 2011
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Moses K. Minta, Edward L. Kimble, Russ H. Oelfke, Eric D. Nelson, Ross Mowrey, Albrecht Goethe
  • Patent number: 7897649
    Abstract: An improved, economical alternative method to supply steam and methane to a steam methane reformer (SMR) is accomplished by a combination of procedures, wherein product gas from a steam hydro-gasification reactor (SHR) is used as the feedstock for the SMR by removing impurities from the product stream from the SHR with a gas cleanup unit that operates substantially at process pressures and at a temperature above the boiling point of water at the process pressure, is located between the SHR and SMR.
    Type: Grant
    Filed: July 16, 2007
    Date of Patent: March 1, 2011
    Assignee: The Regents of the University of California
    Inventors: Joseph M. Norbeck, Chan Seung Park
  • Patent number: 7892511
    Abstract: Systems and processes for producing one or more products from syngas are provided. A feedstock can be gasified in the presence of an oxidant to provide a syngas comprising carbon dioxide, carbon monoxide, and hydrogen. At least a portion of the syngas can be combusted to provide an exhaust gas. At least a portion of the exhaust gas can be introduced to a channel having one or more reaction zones at least partially disposed therein, wherein the one or more reaction zones are in indirect heat exchange with the exhaust gas, wherein the one or more reaction zones comprises one or more catalyst-containing tubes. A reactant can be reacted in at least one of the one or more reaction zones to provide one or more reactor products.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: February 22, 2011
    Assignee: Kellogg Brown & Root LLC
    Inventor: Richard B. Strait
  • Publication number: 20110036013
    Abstract: A process for the production of synthesis gas by gasification with the aid of air or oxygen or oxygen-saturated air as well as water vapor, a solid or liquid carbon-bearing fuel material being fed to a reactor, is shown. The fuel material is converted with the aid of air or oxygen or oxygen-saturated air and water vapor at an elevated temperature into a synthesis gas essentially consisting of hydrogen, carbon dioxide and carbon monoxide; the reaction also yields mineral slag droplets which are removed from the reactor separately from the synthesis gas obtained, and the synthesis gas being discharged from the reactor in any random direction desired; the vaporous alkalis contained in the synthesis gas come into contact with a getter ceramic material so that they separate from the synthesis gas and hence, the synthesis gas can be sent to a slag separation device without previous cooling step and the slag droplets being withdrawn from the said device as liquid slag.
    Type: Application
    Filed: December 22, 2008
    Publication date: February 17, 2011
    Applicant: UHDE GMBH
    Inventors: Domenico Pavone, Michael Rieger, Ralf Abraham
  • Patent number: 7879919
    Abstract: A process for producing hydrocarbons from natural gas includes, in a cryogenic separation stage, cryogenically separating the natural gas to produce at least a methane stream and natural gas liquids, in a reforming stage, reforming the methane stream to produce a synthesis gas which includes at least CO and H2, and in a Fischer-Tropsch hydrocarbon synthesis stage, converting at least some of the CO and H2 into a Fischer-Tropsch product which includes hydrocarbons. A Fischer-Tropsch tail gas which includes at least CO and H2, methane and heavier than methane hydrocarbons, is separated from the Fischer-Tropsch product in a Fischer-Tropsch product separation stage. At least a portion of the Fischer-Tropsch tail gas is recycled to the cryogenic separation stage, where the Fischer-Tropsch tail gas is cryogenically separated into two or more streams.
    Type: Grant
    Filed: December 12, 2006
    Date of Patent: February 1, 2011
    Assignee: Sasol Technology (Proprietary) Limited
    Inventors: Werner Siegfried Ernst, Jacobus Francois Van Tonder
  • Patent number: 7866060
    Abstract: This invention discloses systems and methods for conversion of high moisture waste materials to dry or low moisture products for recycle or reuse. The equipment systems comprise a gas turbine generator unit (preferred heat source), a dryer vessel and a processing unit, wherein the connection between the gas turbine and the dryer vessel directs substantially all the gas turbine exhaust into the dryer vessel and substantially precludes the introduction of air into the dryer vessel and wherein the processing unit forms the dried material from the dryer vessel into granules, pellets or other desired form for the final product. Optionally, the systems and methods further provide for processing ventilation air from manufacturing facilities to reduce emissions therefrom.
    Type: Grant
    Filed: April 7, 2006
    Date of Patent: January 11, 2011
    Assignee: EarthRenew, Inc.
    Inventors: Christianne Carin, Brian N. Gorbell, Christianne Carin, legal representative, Alvin W. Fedkenheuer, John S. Jonasson, Alexander Starosud
  • Patent number: 7863341
    Abstract: The present invention discloses a process for the preparation of syngas from two sources with different hydrogen: carbon ratios, the first source having a low hydrogen:carbon ratio including any one or a combination of coal, brown coal, peat, bitumen and tar sands, and the second source having a high hydrogen:carbon ratio including any one or a combination of natural gas, associated gas and coal bed methane. The sources are converted to syngas and then combined to provide syngas with an optimum hydrogen:carbon monoxide ratio for use in a Fischer-Tropsch process.
    Type: Grant
    Filed: July 18, 2006
    Date of Patent: January 4, 2011
    Assignee: Shell Oil Company
    Inventor: Arold Marcel Albert Routier
  • Patent number: 7855235
    Abstract: A method to start a steady state process for producing normally gaseous, liquid and solid hydrocarbons comprises providing a synthesis gas and catalytically converting the synthesis gas into normally gaseous, liquid or solid hydrocarbons. The process involves using at least a portion of the gaseous hydrocarbons produced as a recycle stream to which hydrogen is added prior to its reintroduction into the reactors and as the activity of the catalyst converting the synthesis gas proceeds from start-up towards a steady state, the amount of recycle stream is reduced.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: December 21, 2010
    Assignee: Shell Oil Company
    Inventor: Robert Martijn Van Hardeveld
  • Patent number: 7846979
    Abstract: Process for the production of liquid hydrocarbons from a feedstock that comprises at least one elementary feedstock from the group of biomass, coal, lignite, petroleum residues, methane, and natural gas, comprising: at least one stage a) for gasification of the feedstock by partial oxidation and/or steam reforming to produce a synthesis gas SG; a stage b) for separating CO2 from SG and a portion of the effluent of the subsequent stage c); the mixing of a portion of the CO2 that is separated with a gas of an H2/CO ratio of more than 3; a stage c) for partial conversion with hydrogen, thermal or thermocatalytic, of the CO2 that is present in said first mixture according to the reaction: CO2+H2?CO+H2O in a specific reaction zone that is separated from said gasification zone or zones; a stage d) for Fisher-Tropsch synthesis on a synthesis gas that comprises at least a portion of SG and at least a portion of the CO that is produced by the conversion of CO2 into hydrogen.
    Type: Grant
    Filed: August 7, 2007
    Date of Patent: December 7, 2010
    Assignee: IFP Energies Nouvelles
    Inventors: Alexandre Rojey, Reynald Bonneau, Nicolas Boudet
  • Patent number: 7829601
    Abstract: The invention is directed to a process for preparing a mixture comprising CO and H2 by operating a partial oxidation process of a solid carbonaceous feed, which process comprises the steps of: (a) supplying the solid carbonaceous feed and an oxygen-containing stream to a burner, wherein a CO2 containing transport gas is used to transport the solid carbonaceous feed to the burner; (b) partially oxidizing the carbonaceous feed in the burner wherein a gaseous stream comprising CO and H2 is being discharged from said burner into a reaction zone, wherein the temperature in the reaction zone is from 1200 to 1800° C.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: November 9, 2010
    Assignee: Shell Oil Company
    Inventors: Johannes Everdinus Gerrit Ploeg, Jacobus Hendrikus Scheerman
  • Publication number: 20100280135
    Abstract: A Renewable Fischer Tropsch Synthesis (RFTS) process produces hydrocarbons and alcohol fuels from wind energy, waste CO2 and water. The process includes (A) electrolyzing water to generate hydrogen and oxygen, (B) generating syngas in a reverse water gas shift (RWGS) reactor, (C) driving the RWGS reaction to the right by condensing water from the RWGS products and separating CO using a CuAlCl4-aromatic complexing method, (D) using a compressor with variable stator nozzles, (E) carrying out the FTS reactions in a high-temperature multi-tubular reactor, (F) separating the FTS products using high-pressure fractional condensation, (G) separating CO2 from product streams for recycling through the RWGS reactor, and (H) using control methods to maintain temperatures of the reactors, electrolyzer, and condensers at optima that are functions of the flow rate. The RFTS process may also include heat engines, a refrigeration cycle utilizing compressed oxygen, and a dual-source organic Rankine cycle.
    Type: Application
    Filed: March 19, 2008
    Publication date: November 4, 2010
    Applicant: DOTY SCIENTIFIC, INC.
    Inventor: F. David Doty
  • Publication number: 20100273899
    Abstract: The present invention provides several variations for converting biomass, and other carbon-containing feedstocks, into syngas. Some variations include pyrolyzing or torrefying biomass in a devolatilization unit to form a gas stream and char, and gasifying the char. Other variations include introducing biomass into a fluid-bed gasifier to generate a solid stream and a gas stream, followed by a partial-oxidation or reforming reactor to generate additional syngas from either, or both, of the solid or gas stream from the fluid-bed gasifier. Hot syngas is preferably subjected to heat recovery. The syngas produced by the disclosed methods may be used in any desired manner, such as conversion to liquid fuels (e.g., ethanol).
    Type: Application
    Filed: April 21, 2010
    Publication date: October 28, 2010
    Applicant: Range Fuels, Inc.
    Inventor: John D. WINTER
  • Patent number: 7820140
    Abstract: A method for the thermo-neutral reforming of liquid hydrocarbon fuels which employs a Ni—Ce2O—Pt—Rh catalyst having dual functionalities to achieve both combustion and steam reforming.
    Type: Grant
    Filed: December 23, 2005
    Date of Patent: October 26, 2010
    Assignee: Saudi Arabian Oil Company
    Inventors: Tomoyuki Inui, Bashir Osama Dabbousi, Ahmeed Shakeel, Fahad Ibrahim Al-Muhaish, Mohammed Abdul Bari Siddqui
  • Patent number: 7820726
    Abstract: A process for the production of normally gaseous, normally liquid and optionally normally solid hydrocarbons from a light hydrocarbonaceous feed gas stream, which feed gas stream includes sulphur compounds and carbon dioxide, the process comprising the steps of: (i) removing at least most of the sulphur compounds from the feed gas stream by an aqueous amine process in one or more reactors, optionally followed by on or more further treatment processes; (ii) controlling where necessary the amount of carbon dioxide in the feed gas stream in step (i) so as to be in the range 0.25-2.0 v/v&, preferably 0.5-1.5 v/v %, of the processed feed stream; (iii) using the feed gas stream of step (ii) to provide synthesis gas; and (iv) catalytic converting the synthesis gas of step (iii) at an elevated temperature and pressure to obtain the normally gaseous, normally liquid and optionally normally solid hydrocarbons.
    Type: Grant
    Filed: May 11, 2006
    Date of Patent: October 26, 2010
    Assignee: Shell Oil Company
    Inventors: Anthony Malcolm Rigby, Jill Hui Chiun Chieng, Gijsbert Jan Van Heeringen, Hans Michiel Huisman
  • Patent number: 7812060
    Abstract: A method of treating off-gas from a Fischer-Tropsch reaction comprises recovering the off-gas and hydrogenating a portion of the olefins present in the off-gas and converting a portion of the carbon monoxide present in the off-gas to carbon dioxide or methane. The treated off-gas is then fed to a hydrogen manufacturing unit such as a steam reformer to form hydrogen that can be used elsewhere in the process.
    Type: Grant
    Filed: November 24, 2005
    Date of Patent: October 12, 2010
    Assignee: Shell Oil Company
    Inventors: Frederik Willem Hendrik Gimpel, Gerard Grootveld
  • Patent number: 7799834
    Abstract: A process and a system are disclosed for producing methanol from synthesis gas. The synthesis gas is a stream containing H2, CO, and CO2 that is created using a nitrogen containing oxidant stream, such as air. The synthesis gas is then reacted through a conventional reactor system to create methanol. Unreacted synthesis gas is recycled back through the reactor system. The disclosed methanol production process can be mounted and operated on a seagoing vessel.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: September 21, 2010
    Assignee: Starchem Technologies, Inc.
    Inventor: Lowell D. Fraley
  • Patent number: 7795317
    Abstract: The invention provides a process to prepare a Fischer-Tropsch synthesis product from a gaseous mixture of hydrocarbons comprising methane, ethane and optional higher carbon number hydrocarbons comprising the steps of: (a) pre-reforming the hydrocarbon mixture adiabatically, (b) heating the gaseous mixture obtained in step (a) to a temperature greater than 650° C., (c) performing a non-catalyzed partial oxidation by contacting the heated mixture of step (b) yielding a reactor effluent having a temperature of between 1100 and 1500° C.
    Type: Grant
    Filed: March 6, 2007
    Date of Patent: September 14, 2010
    Assignee: Shell Oil Company
    Inventors: Jacobus Eilers, Robert Schouwenaar
  • Patent number: 7795318
    Abstract: A multi-stage process for the production of hydrocarbon products from syngas, each stage of the process comprising one or more syngas conversion reactors in which syngas is partially converted into hydrocarbon products at conversion conditions, each conversion reactor having a syngas entry stream system which system combines two or more entry streams of syngas and which system delivers the combined syngas to the syngas conversion reactor, the syngas entry system combining at least one entry stream of syngas being a syngas stream obtained in a partial oxidation process (for the first stage) or an exit stream of syngas from the previous stage, together with a reformed syngas (for all stages except the first stage), with another syngas stream being a recycle stream from the conversion reactor and a syngas exit stream system which discharges an exit stream of syngas from the reactor, the exit stream partly being used as the recycle stream to the syngas entry system as mentioned above, and, in the case that there
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: September 14, 2010
    Assignee: Shell Oil Company
    Inventor: Robert Martijn Van Hardeveld
  • Patent number: 7790775
    Abstract: A process for use in equilibrium exothermic gas phase reactions comprising the steps of (a) providing a recycle stream with the addition of make-up gas, to form a feed gas stream; (b) heating the feed gas stream; (c) passing the heated feed gas stream to a first reactor containing a catalyst for the exothermic gas phase reactions at conditions suitable for the reaction; (d) removing a product stream comprising product and unreacted gases from the first reactor; (e) cooling and partially condensing the product stream to form a gas phase and a liquid phase; (f) separating the liquid phase containing the desired product from the product stream and removing said liquid phase; (g) separating the gas phase from the product stream to form a gas stream; (h) optionally mixing the gas stream from the product stream with additional make-up gas; (i) heating the gas stream; (j) passing the heated gas stream to a final reactor containing a catalyst for the exothermic gas phase reactions at conditions suitable for the react
    Type: Grant
    Filed: August 10, 2005
    Date of Patent: September 7, 2010
    Assignee: Davy Process Technology Limited
    Inventor: Simon Robert Early
  • Publication number: 20100216898
    Abstract: The invention concerns a method and a plant for producing hydrocarbon based fuels from waste and biomass including wood and/or other cellulose containing biomass, where biomass and/or waste is gasified in anaerobic conditions, heating the formed syngas in for decomposition and subsequent condensation in anaerobic conditions, subjecting the heat treated biosyngas to cleaning measures for removing elements/compounds which are poisonous towards the catalysts of the Fischer-Tropsch synthesis, and passing the cleaned heat treated biosyngas through a Fischer-Tropsch synthesis for production of biofuels.
    Type: Application
    Filed: June 27, 2008
    Publication date: August 26, 2010
    Inventor: Erik Tønseth
  • Patent number: 7781490
    Abstract: 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 reaction can then be used as monomers for a polymerization of olefin-containing polymers and/or oligomers.
    Type: Grant
    Filed: March 9, 2007
    Date of Patent: August 24, 2010
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: James R. Lattner, Michel Molinier, Kun Wang
  • Publication number: 20100204348
    Abstract: A gasification plant and methods for producing ammonia, Fischer-Tropsch fuels, electrical power, and/or sulfur from carbon-bearing feedstocks including coal and/or petroleum coke. Methods for production of desired relative amounts of ammonia and Fischer-Tropsch liquid hydrocarbons by adjusting the amount of synthesis gas bypassing the Fischer-Tropsch reactor. The multi-product and integrated plants may be used to reduce the amount of CO2 vented into the atmosphere during the production of these products.
    Type: Application
    Filed: April 21, 2010
    Publication date: August 12, 2010
    Applicant: RENTECH, INC.
    Inventors: Peter S. PEDERSEN, Dennis L. YAKOBSON
  • Patent number: 7772292
    Abstract: A method of producing synthesis gas for methanol synthesis that comprises the steps of: (a) obtaining a hydrogen stream that has greater than 5 mol % methane from an external process; (b) feeding into a reforming reactor: (i) a feed gas that comprises methane, (ii) water in a specified amount, (iii) oxygen in a specified amount, and (iv) the hydrogen stream in a specified amount; (c) reacting the feed gas, water, oxygen and the hydrogen stream in the reactor; and (d) withdrawing from the reactor the synthesis gas that is at a specific temperature, has less than 3 mol % methane, and has a stoichiometric number of from 1.9 to 2.3.
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: August 10, 2010
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Christopher David William Jenkins, James R. Lattner, Michael J. Veraa, Keith H. Kuechler
  • Publication number: 20100179232
    Abstract: The present invention relates to processes and continuous processes for preparing gaseous products, and in particular, methane via the catalytic gasification of carbonaceous feedstocks in the presence of steam. In one aspect of the invention, the processes comprise at least partially combusting a first carbonaceous feedstock with an oxygen-rich gas stream, a recycle steam stream, and an aqueous make-up stream in an oxygen-blown gasifier, under suitable temperature and pressure, to generate a first gas stream comprising hydrogen, carbon monoxide and superheated steam; and reacting a second carbonaceous feedstock and the first gas stream in a catalytic gasifier in the presence of a gasification catalyst under suitable temperature and pressure to form a second gas stream comprising a plurality of gaseous products comprising methane, carbon dioxide, hydrogen, carbon monoxide and hydrogen sulfide.
    Type: Application
    Filed: October 23, 2009
    Publication date: July 15, 2010
    Applicant: GREATPOINT ENERGY, INC.
    Inventors: Earl T. Robinson, Vincent G. Reiling, Pattabhi K. Raman, Eli Gal
  • Patent number: 7744751
    Abstract: The present invention provides a process for producing reagents for a chemical reaction by introducing a fuel containing hydrocarbons into a flash distillation process wherein the fuel is separated into a first component having a lower average molecular weight and a second component having a higher average molecular weight. The first component is then reformed to produce synthesis gas wherein the synthesis gas is reacted catalytically to produce the desire reagent.
    Type: Grant
    Filed: September 15, 2008
    Date of Patent: June 29, 2010
    Assignee: Battelle Memorial Institute
    Inventors: Darrell R. Herling, Chris L. Aardahl, Robert T. Rozmiarek, Kenneth G. Rappe, Yong Wang, Jamelyn D. Holladay
  • Patent number: 7741377
    Abstract: A process to prepare a paraffinic hydrocarbon from a solid carbonaceous feedstock, preferably coal by performing the following steps, (a) feeding an oxygen comprising gas and the carbonaceous feedstock to a burner positioned horizontal and firing into a reactor vessel, (b) performing a partial oxidation of the carbonaceous feedstock in said burner to obtain a stream of hot synthesis gas which flows upwardly relative to the burner and a liquid slag which flows downwardly relative to the burner, (c) cooling the hot synthesis gas by first cooling the gas to a temperature of between 500 and 900° C. by injecting a gaseous or liquid cooling medium into the synthesis gas and subsequently second cooling the gas in to below 500° C.
    Type: Grant
    Filed: November 1, 2007
    Date of Patent: June 22, 2010
    Assignee: Shell Oil Company
    Inventors: Robert Erwin Van Den Berg, Franciscus Gerardus Van Dongen, Thomas Paul Von Kossak-Glowczewski, Hendrik Jan Van Der Ploeg, Pieter Lammert Zuideveld
  • Patent number: 7732499
    Abstract: A method for the production of syngas from methanol feedstock is disclosed. The methanol feed (110) is supplied to a partial oxidation reactor (112) with oxygen (114) and optionally steam (116) to yield a mixed stream (118) of hydrogen, carbon monoxide, and carbon dioxide. The carbon dioxide (122) is separated out and the hydrogen and carbon monoxide mixture (124) is fed to a cold box (126) where it is separated into hydrogen-rich and carbon monoxide-rich streams (130, 128). The separated carbon dioxide (122) can be recycled back to the partial oxidation reactor (112) as a temperature moderator if desired. The carbon monoxide-rich stream (128) can be reacted with methanol (134) in an acetic acid synthesis unit (132) by a conventional process to produce acetic acid (136) or an acetic acid precursor. Optionally, an ammonia synthesis unit (144) and/or vinyl acetate monomer synthesis unit (156) can be integrated into the plant.
    Type: Grant
    Filed: January 27, 2009
    Date of Patent: June 8, 2010
    Assignee: Acetex (Cyprus) Limited
    Inventor: Daniel Marcel Thiebaut
  • Publication number: 20100120926
    Abstract: The present invention relates to processes for preparing gaseous products, and in particular, methane via the catalytic gasification of carbonaceous feedstocks in the presence of steam. The processes comprise using at least one methanation step to convert carbon monoxide and hydrogen in the gaseous products to methane and do not recycle carbon monoxide or hydrogen to the catalytic gasifier.
    Type: Application
    Filed: September 18, 2009
    Publication date: May 13, 2010
    Applicant: GREATPOINT ENERGY, INC.
    Inventors: Earl T. Robinson, Avinash Sirdeshpande, Eli Gal, Vincent G. Reiling, Nicholas Charles Nahas
  • Patent number: 7704412
    Abstract: Partial oxidation process of liquid and/or gaseous fuels, by means of a catalytic system, preferably consisting of oxides, nitrides or oxynitrides containing one or more elements selected from Rh, Ru, Ir, Pt, Ni, Fe, Co, Cr and Cu, comprising the following steps: —premixing and, upon start-up, preheating the reagents consisting of natural gas, oxygen or air or air enriched in oxygen, optionally vapour and/or CO2, to temperatures ranging from 150 to 600° C., below the flash-point values, so that the surface rate of the reaction gases is maintained above the flame rate and the temperature of the reagent mixture in the area preceding the catalytic bed is below its flash point; —reacting the reagent mixture in the reaction zone by interaction of the catalyst, activating it at temperatures ranging from 150 to 600° C. and at space velocities ranging from 50,000 to 5,000,000 Nl reagents/L cat×h, reaching temperatures ranging from 600 to 1350° C.
    Type: Grant
    Filed: May 21, 2003
    Date of Patent: April 27, 2010
    Assignee: Eni S.p.A.
    Inventors: Luca Basini, Alessandra Guarinoni
  • Patent number: 7683232
    Abstract: 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 process is preferably carried out by partial oxidation. The overall process can be carried out autothermally.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: March 23, 2010
    Assignee: Regents of the University of Minnesota
    Inventors: Lanny D. Schmidt, Ramanathan Subramanian
  • Publication number: 20100056648
    Abstract: The present invention relates generally to processes and systems for the production of liquefied petroleum gas (LPG). More specifically, embodiments of the present invention relate to improved methods and systems for the direct reaction of synthesis gas (syngas) to liquefied petroleum gas.
    Type: Application
    Filed: July 24, 2009
    Publication date: March 4, 2010
    Inventors: Joseph W. Schroer, Drow Lionel O'Young, Vaibhav Kelkar, Kaoru Fujimoto, Hiroshi Kaneko
  • Patent number: 7655703
    Abstract: A method and apparatus for converting organic waste feed streams into usable liquid fuels by adjusting the ratio of carbon dioxide, carbon monoxide, and hydrogen in the effluent gas of a high temperature waste treatment system. A pressure swing adsorption (PSA) unit is used to remove carbon dioxide from the effluent gas of a high temperature waste treatment system, while leaving carbon monoxide and hydrogen, thereby producing a gas stream amenable to the production of methanol and other liquid fuels using commercially available catalytic reactors.
    Type: Grant
    Filed: January 26, 2007
    Date of Patent: February 2, 2010
    Assignee: Inentec LLC
    Inventor: James A. Batdorf
  • Publication number: 20100022669
    Abstract: The present invention includes a method for converting renewable energy source electricity and a hydrocarbon feedstock into a liquid fuel by providing a source of renewable electrical energy in communication with a synthesis gas generation unit and an air separation unit. Oxygen from the air separation unit and a hydrocarbon feedstock is provided to the synthesis gas generation unit, thereby causing partial oxidation reactions in the synthesis gas generation unit in a process that converts the hydrocarbon feedstock into synthesis gas. The synthesis gas is then converted into a liquid fuel.
    Type: Application
    Filed: October 7, 2009
    Publication date: January 28, 2010
    Inventors: Daniel R. Cohn, Jeffrey E. Surma, Leslie Bromberg
  • Publication number: 20100022668
    Abstract: In various implementations, various feed gas streams which include hydrogen and carbon monoxide may be processed for conversion to product streams. For example, the feed gas stream may be processed using the Fischer-Tropsch process. Unconverted hydrogen and carbon monoxide can be recycled using an off-gas catalytic reformer and a gas turbine exhaust gas heat exchanger that will perform preheating duties.
    Type: Application
    Filed: June 19, 2009
    Publication date: January 28, 2010
    Applicant: GTLpetrol LLC
    Inventor: Rodney J. Allam
  • Publication number: 20100022667
    Abstract: The invention relates to a method for the disposal and utilisation of waste materials of all types, in which the waste materials are compressed in batches to form compact packets and pass through temperature treatment zones, synthesis gas being produced, and the synthesis gas is converted in a subsequent reaction into hydrocarbon molecules for the production of fuel.
    Type: Application
    Filed: August 24, 2007
    Publication date: January 28, 2010
    Applicant: Thermoselect AG
    Inventor: Günter H. Kiss
  • Publication number: 20100016454
    Abstract: The present invention provides a process, that has a reduced level of CO2 emissions, for the conversion of hydrocarbons into alcohol(s) in the presence of a catalyst.
    Type: Application
    Filed: October 17, 2007
    Publication date: January 21, 2010
    Inventors: Benjamin Patrick Gracey, Michael Keith Lee
  • Patent number: 7645807
    Abstract: Production of biodiesel from vegetable and animal oils with conversion of a by-product crude glycerol stream to methanol. The crude glycerol stream is combined with superheated steam and oxygen to produce a synthesis gas that is then passed to a methanol synthesis reaction zone to produce methanol.
    Type: Grant
    Filed: July 3, 2007
    Date of Patent: January 12, 2010
    Assignee: G.D.O. Inc.
    Inventors: Duane Goetsch, Ian S. Machay, Lloyd R. White
  • Patent number: 7642294
    Abstract: A process is provided to make ethylene and propylene from a carbonaceous feedstock. The process comprises preparing a gaseous mixture of carbon monoxide and hydrogen from a feedstock. A Fischer Tropsch synthesis is then performed on the gaseous mixture to obtain a Fischer Tropsch product along with unconverted carbon monoxide and hydrogen. The Fischer Tropsch product in admixture with the unconverted carbon monoxide and hydrogen from the previous step is then subjected to terminal cracking to form ethylene and propylene.
    Type: Grant
    Filed: October 6, 2005
    Date of Patent: January 5, 2010
    Assignee: Shell Oil Company
    Inventors: Emil Eduard Antonius Cruijsberg, Jan Lodewijk Maria Dierickx, Arend Hoek, Johannes Marie Gemma Van Schijndel, Jeroen Van Westrenen
  • Patent number: 7642293
    Abstract: An apparatus and method of producing methanol includes reacting a heated hydrocarbon-containing gas and an oxygen-containing gas in a reactor; to provide a product stream comprising methanol; and transferring heat from the product stream to the hydrocarbon-containing gas to heat the hydrocarbon containing gas. After removing methanol and CO2 from the product stream, unprocessed hydrocarbons are mixed with the hydrocarbon containing gas fro reprocessing through the reactor.
    Type: Grant
    Filed: February 10, 2006
    Date of Patent: January 5, 2010
    Assignee: Gas Technologies LLC
    Inventors: Nathan A Pawlak, Vladimir Ivanovich Vedeneev
  • Patent number: 7619012
    Abstract: A method and apparatus for converting carbonaceous material to a stream of methane and carbon monoxide rich gas by heating the carbonaceous material in a fluidized bed reactor using hydrogen, as fluidizing medium, and using steam, under reducing conditions at a temperature and pressure sufficient to generate a stream of methane and carbon monoxide rich gas but at a temperature low enough and/or at a pressure high enough to enable the carbonaceous material to be fluidized by the hydrogen. In particular embodiments, the carbonaceous material is fed as a slurry feed, along with hydrogen, to a kiln type reactor before being fed to the fluidized bed reactor.
    Type: Grant
    Filed: July 16, 2007
    Date of Patent: November 17, 2009
    Assignee: The Regents of the University of California
    Inventors: Joseph M. Norbeck, Chan Seung Park, Surinder P. Singh