Preparing By Oxidation Patents (Class 568/910)
  • Patent number: 10099979
    Abstract: The present invention generally relates to apparatuses, systems, and methods for oxidation of an alkane (e.g., methane) into an alcohol (e.g., methanol) in the presence of a catalyst.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: October 16, 2018
    Assignee: Massachusetts Institute of Technology
    Inventors: Yuriy Román-Leshkov, Karthik Narsimhan
  • Patent number: 9682899
    Abstract: This invention relates to the conversion of substantially-saturated hydrocarbon to higher-value hydrocarbon products such as aromatics and/or oligomers, to equipment and materials useful in such conversion, and to the use of such conversion for, e.g., natural gas upgrading.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: June 20, 2017
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Juan D. Henao, Paul F. Keusenkothen, Abhimanyu O. Patil
  • Patent number: 9682900
    Abstract: This disclosure relates to the conversion of methane to higher molecular weight (C5+) hydrocarbon, including aromatic hydrocarbon, to materials and equipment useful in such conversion, and to the use of such conversion for, e.g., natural gas upgrading.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: June 20, 2017
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Paul F. Keusenkothen, Juan D. Henao, Abhimanyu O. Patil, Guang Cao
  • Patent number: 9556092
    Abstract: A method includes a step of supplying a first heated hydrocarbon-containing gas stream to a reactor. An oxygen-containing gas stream is separately supplied to the reactor to partially oxidize the hydrocarbon-containing gas stream. The oxygen-containing gas is optionally prepared by passing air through one or more membranes to increase the oxygen content. One or more of the desired liquid oxygenated hydrocarbons are condensed and/or separated from the resulting product stream. Non-hydrocarbon gases are selectively removed from the product stream to enrich the gaseous hydrocarbon fraction using a scrubber and/or a membrane. The remaining gaseous hydrocarbon products from the product stream are mixed with a fresh hydrocarbon-containing gas stream after one cycle of the reaction. Characteristically, the process uses at least one membrane to increase oxygen content of the oxygen containing gas and/or to remove non-hydrocarbon gases from the product stream as set forth above.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: January 31, 2017
    Assignee: GAS TECHNOLOGIES LLC
    Inventors: Evan Michael Visser, Ian Lawrence Gaffney, Walter Briedenstein
  • Patent number: 9193641
    Abstract: Process and system that include the conversion of alkyl bromides to higher molecular weight hydrocarbons in circulating catalyst reactor-regenerator systems. Alkyl bromides may be reacted over a catalyst in at least one conversion reactor to produce at least an effluent stream comprising higher molecular weight hydrocarbons and hydrogen bromide. A portion of the catalyst may be removed from the conversion reactor. The portion of the catalyst may be contacted with a stripping gas to displace hydrocarbons from the portion of the catalyst. The portion of the catalyst may be contacted a first inert gas. The portion of the catalyst may be contacted with oxygen to form a regenerated catalyst by removal of coke. The regenerated catalyst may be contacted with a second inert gas. At least a portion of the regenerated catalyst may be introduced into the conversion reactor.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: November 24, 2015
    Assignee: GTC Technology US, LLC
    Inventors: John J. Waycuilis, Raphael Thomas, Patrick K. Moore
  • Publication number: 20150133702
    Abstract: Methods and systems for removing volatile organic compounds from spent air are provided. The method can include oxidizing cumene in the presence of an oxidant to produce an oxidized product containing methanol and a spent air, separating the spent air from the oxidized product, contacting the spent air with an absorbent, an adsorbent, or a mixture thereof to remove at least a portion of any impurities in the spent air to produce a first purified air, and contacting the first purified air with a biological material to produce a treated air.
    Type: Application
    Filed: January 26, 2015
    Publication date: May 14, 2015
    Inventor: ERIC WING-TAK WONG
  • Patent number: 9024091
    Abstract: A method of making alcohols involves forming of alcohol esters from liquid alkane halides and a solution of metallic salts of organic acids to produce gaseous alcohol esters for reaction with magnesium or metal hydroxides to form the alcohol and the metal salt of the organic acids. In an improvement method liquid phase alcohol esters instead of gaseous alcohol esters are produced from liquid alkane halides and a solution of metal salts of organic acids whose alkane esters are less soluble in water than that of the alkane halide and treating of the alcohol ester formed with magnesium or metal hydroxides to form the alcohol and the metal salt of the organic acids.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: May 5, 2015
    Assignee: Sajet Development LLC
    Inventors: Jorge Miller, Luisa Kling Miller
  • Publication number: 20150087867
    Abstract: A method for the reduction of carbon dioxide and/or carbon dioxide derivatives to methanol comprises the step of hydrogenation carbon dioxide and/or carbon dioxide derivatives in the presence of a Ruthenium-phosphine complex.
    Type: Application
    Filed: April 16, 2013
    Publication date: March 26, 2015
    Inventors: Jürgen Klankermayer, Walter Leitner, Sebastian Wesselbaum, Thorsten Vom Stein
  • Publication number: 20150072400
    Abstract: Methods of cultivating autotrophic microorganisms, particularly microalgae or diatoms, in a bioreactor by entraining a culture of the microorganisms in a tenuous, gelated, thixotrophic carrier medium having nutrients therefor and moving the medium along a passage at a sufficiently slow speed to enable laminar flow which in cross section is closed and which has transparent walls through which the culture is irradiated to enable photosynthesis. The method includes effecting convective turnover of the culture and medium as they flow along the passage by differentially heating the medium laterally relative to the flow direction so as to produce a generally helical flow of the culture and medium. Also described are processing methods, both physical and chemical, performed underground e.g.
    Type: Application
    Filed: May 5, 2014
    Publication date: March 12, 2015
    Inventor: William Severn Clarke
  • Publication number: 20140303400
    Abstract: A process for the complete or partial oxygenation of hydrocarbons comprises contacting a C1-C8 hydrocarbon, molecular oxygen, and hydrogen peroxide, in the presence of water and a heterogeneous catalyst, under conditions suitable to convert the C1-C8 hydrocarbon to at least one corresponding C1-C8 oxygenate product, wherein the heterogeneous catalyst provides confinement and contains both Brønsted-Lowry acid centers and Lewis acid centers. The reaction may be carried out at a temperature ranging from 2° C. to 90° C. The use of molecular oxygen increases the economic attractiveness of the process while also improving yield.
    Type: Application
    Filed: October 3, 2012
    Publication date: October 9, 2014
    Applicant: UNIVERSITY COLLEGE CARDIFF CONSULTANTS LIMITED
    Inventors: Graham J. Hutchings, Michael M. Forde, Jose A. Lopez - Sanchez, Nikolaos Dimitratos
  • Patent number: 8846989
    Abstract: A method of making alcohols involves forming of alcohol esters from liquid alkane halides and a solution of metallic salts of organic acids to produce gaseous alcohol esters for reaction with magnesium or metal hydroxides to form the alcohol and the metal salt of the organic acids. In an improvement method liquid phase alcohol esters instead of gaseous alcohol esters are produced from liquid alkane halides and a solution of metal salts of organic acids whose alkane esters are less soluble in water than that of the alkane halide and treating of the alcohol ester formed with magnesium or metal hydroxides to form the alcohol and the metal salt of the organic acids.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: September 30, 2014
    Assignee: Sajet Development LLC
    Inventors: Jorge Miller, Luisa Kling Miller
  • Publication number: 20140275643
    Abstract: A method for removing formaldehyde from a blend of partially oxygenated hydrocarbons is provided. The method including a step of reacting a hydrocarbon-containing gas with an oxygen-containing gas in a reaction vessel to form first product blend. The first product blend includes a blend of partially oxygenated compounds that include formaldehyde. The blend of partially oxygenated compounds is provided to a reactive scrubbing station where it is contacted with a reactive scrubbing liquid to form a reactive liquid-formaldehyde compound. The reactive liquid-formaldehyde compound is then removed from the first blend of partially reactive compounds.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: GAS TECHNOLOGIES LLC
    Inventors: Krishna K. Rao, Evan Michael Visser, Ian Lawrence Gaffney, Walter Breidenstein
  • Patent number: 8759593
    Abstract: A method of reclaiming alcohols from purification residue includes hydrolyzing a purification residue with an aqueous medium in the presence of (i) an acid and (ii) an oxidizing agent.
    Type: Grant
    Filed: September 17, 2012
    Date of Patent: June 24, 2014
    Assignee: Oxea Bishop LLC
    Inventors: Kenneth A. Windhorst, Oakley T. Cortez, Donald K. Raff
  • Patent number: 8664447
    Abstract: Provided is a process for effectively and efficiently oxidizing alkyl-containing molecules with the use of an oxygen-containing gas. An iridium metal catalyst complex with the iridium being coordinated with the nitrogen atoms of a benzimidazolyl-containing ligand is used as the catalyst. The process generates alcohols, ketones and aldehydes directly from alkyl-containing molecules and/or aromatic molecules.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: March 4, 2014
    Assignee: Rutgers, The State University of New Jersey
    Inventors: Alan Stuart Goldman, Robert Timothy Stibrany
  • Patent number: 8658844
    Abstract: Catalytic structures are provided comprising octahedral tunnel lattice manganese oxides ion-exchanged with metal cations or mixtures thereof. The structures are useful as catalysts for the oxidation of alkanes and may be prepared by treating layered manganese oxide under highly acidic conditions, optionally drying the treated product, and subjecting it to ion exchange.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: February 25, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Helge Jaensch, Wilfried J. Mortier
  • Patent number: 8629306
    Abstract: The invention relates to a process for preparing 1,6-hexanediol, preferably with at least 99.5% purity, which are especially virtually free of 1,4-cyclohexanediols, from a carboxylic acid mixture which is obtained as a by-product of the catalytic oxidation of cyclohexane to cyclohexanone/cyclohexanol with oxygen or oxygen-comprising gases and by water extraction of the reaction mixture, by hydrogenating the carboxylic acid mixture, esterifying and hydrogenating a substream to hexanediol.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: January 14, 2014
    Assignee: BASF SE
    Inventors: Rolf Pinkos, Daniel Breuninger, Gerd-Dieter Tebben
  • Patent number: 8617260
    Abstract: Techniques, systems, apparatus and material are disclosed for generating multi-purpose H2-dense fuel for isolating contaminants and storing energy. In one aspect, a method of producing a renewable multi-purpose biomaterial for isolating a hazardous contaminant from an environment and storing energy includes dissociating biomass waste using a thermochemical reaction to produce at least one of hydrocarbon and alcohol by applying waste heat recovered from an external heat source. The method includes dissociating the at least one of hydrocarbon and alcohol to generate carbon and hydrogen. Carbon dioxide emitted from an industrial process is harvested and reacted with the hydrogen to generate the hydrogen-dense fuel. A hazardous contaminant is dissolved in the hydrogen-dense fuel operating as a solvent to generate a liquid mixture that isolates the hazardous contaminant from the environment. The hazardous contaminant includes at least one of a carbon donor and a hydrogen donor.
    Type: Grant
    Filed: December 5, 2011
    Date of Patent: December 31, 2013
    Assignee: McAlister Technologies, LLC
    Inventor: Roy Edward McAlister
  • Patent number: 8609906
    Abstract: A process for preparing C1-C4-oxygenates from a reactant stream A which comprises essentially a C1-C4-alkane or a mixture of C1-C4-alkanes, by a) branching off a substream B of the reactant stream A and allowing it to react in a reactor with oxygen or an oxygenous gas stream C, which converts a portion of the C1-C4-alkane or a portion of the mixture which comprises C1-C4-alkanes to C1-C4-oxygenates, b) removing at least 90 mol % of the C1-C4-oxygenates formed from the product stream D resulting from step a) to form a remaining low boiler stream E, which comprises combining the low boiler stream E with the reactant stream A without further workup and without combination with the substream B down-stream of the branching site of the substream B.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: December 17, 2013
    Assignee: BASF SE
    Inventors: Annebart Engbert Wentink, Stefan Altwasser, Yan Li, Michael Krämer, Frank Rosowski, Catharina Horstmann
  • Publication number: 20130324761
    Abstract: A process for the complete or partial oxidation of hydrocarbons comprises contacting a C1-C8 hydrocarbon and hydrogen peroxide in the presence of a heterogeneous catalyst under conditions suitable to convert the C1-C8 hydrocarbon to at least one corresponding C1-C8 oxygenate product, wherein the heterogeneous catalyst provides confinement and contains both Brønsted-Lowry and Lewis acid centers. Examples include zeolites modified with selected metals or metal oxides. Including copper, either in the catalyst, in a second catalyst of similar description, or as a homogeneous salt, increases both selectivity and activity of the process, particularly where an iron-containing catalyst is used.
    Type: Application
    Filed: February 2, 2011
    Publication date: December 5, 2013
    Applicant: University College Cardiff Consulltants Limited
    Inventors: Graham John Hutchings, Jose Antonio Lopez-Sanchez, Ceri Hammond, Nikolaos Dimitratos, Nicholas Fracois Dummer
  • Publication number: 20130245324
    Abstract: Provided is a process for effectively and efficiently oxidizing alkyl-containing molecules with the use of an oxygen-containing gas. An iridium metal catalyst complex with the iridium being coordinated with the nitrogen atoms of a benzimidazolyl-containing ligand is used as the catalyst. The process generates alcohols, ketones and aldehydes directly from alkyl-containing molecules and/or aromatic molecules.
    Type: Application
    Filed: September 12, 2012
    Publication date: September 19, 2013
    Inventors: Alan Stuart Goldman, Robert Timothy Stibrany
  • Publication number: 20130237713
    Abstract: The present invention provides a process for preparing ethylene and/or propylene, comprising the steps of contacting a stream comprising C4+ olefins with a zeolite-comprising catalyst to retrieve an olefinic product stream comprising ethylene and/or propylene, and a C4+ hydrocarbon fraction, comprising paraffins, normal olefins and iso-olefins. The C4+ hydrocarbon fraction is subjected to an etherification process with wherein at least part of the iso-olefins are converted with methanol and/or ethanol to an tert-alkyl ether and an etherification product stream is retrieved and separated into an ether-enriched stream and an iso-olefin-depleted C4+ hydrocarbon stream. Part of the iso-olefin-depleted C4+ hydrocarbon stream from the process to purge part of the paraffinic C4+ hydrocarbons while another part of the iso-olefin-depleted C4+ hydrocarbon stream is recycled.
    Type: Application
    Filed: September 7, 2012
    Publication date: September 12, 2013
    Applicant: SHELL OIL COMPANY
    Inventors: Leslie Andrew CHEWTER, Rajaram RAMESH, Jeroen VAN WESTRENEN
  • Publication number: 20130237714
    Abstract: The present invention provides a process for preparing ethylene and/or propylene and an iso-olefin-depleted C4 olefinic product, comprising the steps of: a) providing a C4 hydrocarbon stream, comprising normal olefins and iso-olefins; b) subjecting the C4 hydrocarbon stream to an etherification process with methanol and/or ethanol wherein at least part of the iso-olefins are converted with methanol and/or ethanol to an tert-alkyl ether, and retrieving an etherification product stream; c) separating at least part of the etherification product stream into at least an ether-enriched stream and a first iso-olefin-depleted C4 olefinic product; d) converting at least part of the tert-alkyl ether in the ether-enriched stream to ethylene and/or propylene by contacting least part of the ether-enriched stream with a molecular sieve-comprising catalyst at a temperature in the range of from 350 to 1000° C. and retrieving a second olefinic product comprising ethylene and/or propylene.
    Type: Application
    Filed: September 7, 2012
    Publication date: September 12, 2013
    Applicant: SHELL OIL COMPANY
    Inventors: Sivakumar SADASIVAN VIJAYAKUMARI, Jeroen VAN WESTRENEN
  • Patent number: 8513472
    Abstract: There is provided a process for preparing 1,6-hexanediol by esterifying a carboxylic acid mixture resulted from oxidation of cyclohexane with oxygen, and then hydrogenating the esters, which substantially does not contain a compound leading to a high ester value.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: August 20, 2013
    Assignee: Ube Industries, Ltd.
    Inventors: Hirofumi Li, Tomoyuki Itou, Yoshiki Kawamura, Toshiyuki Matsushita
  • Publication number: 20130203984
    Abstract: In a process for oxidizing a hydrocarbon to a product comprising at least one of the corresponding hydroperoxide, alcohol, ketone, carboxylic acid and dicarboxylic acid, the hydrocarbon is contacted with an oxygen-containing compound in at least one oxidation zone in the presence of a catalyst comprising a cyclic imide having an imide group of formula (I): wherein X represents an oxygen atom, a hydroxyl group, or an acyloxy group and wherein the oxygen-containing compound supplied to said at least one oxidation zone has a water content of less than or equal to 0.6% by weight of the oxygen-containing compound.
    Type: Application
    Filed: August 16, 2011
    Publication date: August 8, 2013
    Inventors: Christopher L. Becker, Jihad M. Dakka, Franisco M. Benitez, Edmund J. Mozeleski
  • Patent number: 8440868
    Abstract: An alcohol such as methanol is produced from an alkane such as methane and oxygen in a single step process using a heterogeneous catalyst. The catalyst comprises the chloride salts of copper, potassium, lead and zinc.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: May 14, 2013
    Inventor: John E. Stauffer
  • Publication number: 20130090495
    Abstract: A process for the complete or partial oxidation of hydrocarbons comprises contacting a C1-C8 hydrocarbon and hydrogen peroxide in the presence of a heterogeneous catalyst under conditions suitable to convert the C1-C8 hydrocarbon to at least one corresponding C1-C8 oxygenate product, wherein the heterogeneous catalyst provides confinement and contains both Brønsted-Lowry and Lewis acid centers. Particularly useful catalysts may include, for example, metal-modified ZSM-5 and other zeolites.
    Type: Application
    Filed: June 25, 2010
    Publication date: April 11, 2013
    Inventors: Graham John Hutchings, Jose Antonio Lopez-Sanchez, Ceri Hammond, Nikolaos Dimitratos, Nicholas Fracois Dummer
  • Publication number: 20130053585
    Abstract: Fe2(dobdc) has a metal-organic framework with a high density of coordinatively-unsaturated FeII centers lining the pore surface. It can be effectively used to separate O2 from N2 and in a number of additional separation applications based on selective, reversible electron transfer reactions. In addition to being an effective O2 separation material, it can be used for many other processes, including paraffin/olefin separation, nitric oxide/nitrous oxide separation, acetylene storage, and as an oxidation catalyst.
    Type: Application
    Filed: August 24, 2012
    Publication date: February 28, 2013
    Applicant: The Regents of the University of California
    Inventors: Jeffrey R. LONG, Eric D. BLOCH, Leslie MURRAY
  • Publication number: 20130023701
    Abstract: The present disclosure provides a system for oxidizing methane, including a construct with at least one conduit for air access, and a layer of mineralized waste surrounding the at least one conduit. The present disclosure also provides a method for oxidizing methane, including putting the system for oxidizing methane into contact with the material to be oxidized.
    Type: Application
    Filed: May 28, 2010
    Publication date: January 24, 2013
    Applicant: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventors: Youcai Zhao, Dan Han
  • Patent number: 8304585
    Abstract: A method is provided for producing highly pure 1,6-hexanediol in which the contents of impurities such as 1,4-cyclohexanediol, 1,5-hexanediol, 1,2-cyclohexanediol, 1,7-pentanediol, 1,5-pentanediol and high boiling point components are significantly reduced.
    Type: Grant
    Filed: January 12, 2007
    Date of Patent: November 6, 2012
    Assignee: Ube Industries, Ltd.
    Inventors: Hirofumi Ii, Tomoyuki Ito, Yoshiki Kawamura, Toshiyuki Matsushita
  • Publication number: 20120259145
    Abstract: Methanol is produced from methane and oxygen in a single step process using a heterogeneous catalyst. The catalyst comprises the chloride salts of copper, potassium, lead and zinc.
    Type: Application
    Filed: April 6, 2011
    Publication date: October 11, 2012
    Inventor: John E. STAUFFER
  • Patent number: 8242300
    Abstract: The present invention relates to selective partial oxidation of methane in the absence of a solvent such as sulfuric acid or oleum.
    Type: Grant
    Filed: July 1, 2008
    Date of Patent: August 14, 2012
    Assignee: Dow Global Technologies LLC
    Inventors: Michael A. Gonzalez, Daniel R. Henton, David C. Molzahn
  • Publication number: 20120203035
    Abstract: This invention concerns processes for the oxidation of hydrocarbons such as methane to form alcohols such as methanol using heterogeneous gold-containing supported catalysts. Hydrogen peroxide is used as the oxidant. The hydrogen per-oxide can be made in situ.
    Type: Application
    Filed: October 29, 2009
    Publication date: August 9, 2012
    Applicant: Cardiff University
    Inventors: Jose Antoniol Lopez-Sanchez, Nikolaos Dimitratos, Robert L. Jenkins, Albert F. Carley, David J. Willock, Stuart H. Taylor, Graham John, Mohd Hasbi Ab. Rahim
  • Publication number: 20120201743
    Abstract: A process for preparing an oxygenate product by direct conversion of a C1-C3 alkane in either the gas or liquid phase, by contacting the selected alkane with hydrogen peroxide or a hydroperoxy species in the presence of a gold-based heterogeneous catalyst on a metal oxide support having a morphology of nanotubes, nanofibers, nanowires, or nanorods. The result is efficient conversion under mild conditions. The hydrogen peroxide or hydroperoxy species may themselves be prepared, in situ, by contacting a hydrogen source and oxygen in the presence of the same type of catalyst. The process may be particularly useful in the conversion of methane to methanol.
    Type: Application
    Filed: October 29, 2009
    Publication date: August 9, 2012
    Applicant: Imperial College of Science and Medicine
    Inventors: David Chadwick, Laura Torrente Murciano
  • Patent number: 8227647
    Abstract: A method comprising reacting an alkane gas with a halogen gas in a halogenations reactor to form a halogenation reaction product mixture comprising alkane halide and hydrogen halide mixture; mixing the halogenations reaction product mixture with a countercurrent flow of a metal organic salt thereby forming an extractor product mixture of a metal halide, organic salt, and organic acid separating the organic ester and organic acid mixture from the metal halide; oxygenating the metal halide to form a metal oxide and halide containing gasses; separating the metal oxide from the halide containing gasses; mixing the metal oxide with water to form a metal oxide slurry; mixing the metal oxide slurry with a countercurrent flow of the organic ester and organic acid mixture to form a raw product comprising alkanol, a metal organic salt is provided.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: July 24, 2012
    Assignee: Sajet Development LLC
    Inventors: Jorge Miller, Luisa Kling Miller
  • Patent number: 8217206
    Abstract: The present invention is a process for converting methane to methanol, comprising: feeding methane and gaseous air or oxygen or gaseous air enriched with oxygen to a reactor under an elevated pressure; said reactor having an internal surface, made of silica or coated with silica, surrounding a zone in which said gases react; and reacting said gases in said reaction zone at an elevated temperature at conditions effective to produce methanol and for valuable oxygenates. Advantageously the internal surface is made of quartz or coated with quartz Advantageously the internal surface, made of silica (advantageously quartz) or coated with silica (advantageously quartz), is treated with HF before the conversion of methane to methanol. Advantageously the reaction is carried out in the absence in said reaction zone of any added material which measurably affects the rate of the reaction or the yield of the product. Advantageously the reactor is operated under a pressure from 1 to 7.5 MPa.
    Type: Grant
    Filed: July 4, 2008
    Date of Patent: July 10, 2012
    Assignee: Total Petrochemicals Research Feluy
    Inventors: Hendrik De Winne, Pierre Jacobs, Bert Sels, Walter Vermeiren
  • Publication number: 20120088186
    Abstract: The invention relates to a catalyst, to the use thereof for the electrochemical conversion of methane to methanol and for the direct electrochemical conversion of methane to CO2. The invention also relates to an electrode, in particular for a fuel cell including such a catalyst, as well as to a method for manufacturing such an electrode. The invention further relates to a fuel cell including said catalyst or said electrode. The catalyst according to the invention includes a platinum precursor (II), and optionally a metal-ion precursor M supported by particles of a heteropolyanion (HPA). The invention can be used in particular in the field of the electrochemical oxidation of methane into methanol or CO2.
    Type: Application
    Filed: April 23, 2010
    Publication date: April 12, 2012
    Applicants: UNIVERSITE PARIS SUD XI, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventor: Yu-Wei Lu
  • Patent number: 8138381
    Abstract: The present invention provides a method for recovering a natural gas contaminated with high levels of carbon dioxide. A gas containing methane and carbon dioxide is extracted from a reservoir containing natural gas, where carbon dioxide comprises greater than 40 vol. % of the extracted gas. The extracted gas is scrubbed with a wash effective to produce a washed extracted gas containing less carbon dioxide than the extracted gas and at least 20 vol. % carbon dioxide. The washed extracted gas is oxidized with an oxygen containing gas in the presence of a partial oxidation catalyst to produce an oxidation product gas containing hydrogen, carbon monoxide, and carbon dioxide. The oxidation product gas is then utilized to produce a liquid methanol product.
    Type: Grant
    Filed: January 5, 2010
    Date of Patent: March 20, 2012
    Assignee: Shell Oil Company
    Inventors: Mahendra Ladharam Joshi, Jingyu Cui, Frederik Arnold Buhrman, Scott Lee Wellington, Stanley Nemec Milam, Rogier Maarten Kamerbeek
  • Patent number: 8083815
    Abstract: A process to prepare methanol and/or dimethylether from a solid carbonaceous feedstock comprising the steps of (a) feeding an oxygen-comprising gas and the carbonaceous feedstock to a burner 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 and a liquid slag whereby both the hot synthesis gas and the liquid slag flow downwardly relative to the burner, (c) cooling the hot synthesis gas by direct contact with a liquid water-containing cooling medium, (d) performing a water shift reaction on at least part of the synthesis gas, to obtain a synthesis gas effluent, (e) performing an oxygenate synthesis using the synthesis gas effluent of step (d), to obtain a methanol and/or dimethylether containing oxygenate effluent and a first liquid water-rich by-product, wherein at least part of the first liquid water-rich by-product is used in step (c), forming at least part of the liquid water-containing cooling medium.
    Type: Grant
    Filed: January 20, 2009
    Date of Patent: December 27, 2011
    Assignee: Shell Oil Company
    Inventors: Robert Van Den Berg, Leslie Andrew Chewter, Jeroen Van Westrenen, Ferry Winter
  • Patent number: 8063256
    Abstract: The invention provides a process for the preparation of an alkylene glycol from an alkene. The gas composition from an alkylene oxide reactor is contacted with lean absorbent in an alkylene oxide absorber in the presence of one or more catalysts that promote carboxylation. The lean absorbent comprises at least 50 wt % alkylene carbonate and less than 10 wt % water and is supplied to the alkylene oxide absorber at a temperature greater than 60° C. Alkylene oxide reacts with carbon dioxide in the absorber, forming alkylene carbonate, and fat absorbent comprising alkylene carbonate is withdrawn from the absorber. A portion of the fat absorbent is supplied to one or more hydrolysis reactors, wherein alkylene carbonate reacts with water in the presence of one or more hydrolysis catalysts. The product stream from the hydrolysis reactor is dehydrated and purified.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: November 22, 2011
    Assignee: Shell Oil Company
    Inventor: Eugene Marie Godfried Andre Van Kruchten
  • Patent number: 7968755
    Abstract: Methods and catalysts for producing alcohols, ethers, and/or alkenes from alkanes are provided. More particularly, novel caged, or encapsulated, metal oxide catalysts and processes utilizing such catalysts to convert alkanes to alcohols and/or ethers and to convert alcohols and/or ethers to alkenes are provided.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: June 28, 2011
    Assignee: Sajet Development LLC
    Inventors: Jorge Miller, Luisa Kling Miller
  • Patent number: 7915459
    Abstract: This invention discloses methods and processes for selectively converting hydrocarbons such as methane to materials such as alcohols or other materials containing more reactive functionalities.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: March 29, 2011
    Inventors: Roy A. Periana, William A. Goddard, III
  • 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: 20110021802
    Abstract: The present invention relates to selective partial oxidation of methane in the absence of a solvent such as sulfuric acid or oleum.
    Type: Application
    Filed: July 1, 2008
    Publication date: January 27, 2011
    Inventors: Michael A. Gonzalez, Daniel R. Henton, David C. Molzahn
  • Patent number: 7868201
    Abstract: A process for the oxidation of hydrocarbons comprises contacting the hydrocarbon with an oxygen-containing gas in the presence of a catalyst comprising a microporous solid support, preferably a zeolite, having from 8- to 12-ring open windows and comprising non-framework metal cations selected from manganese, iron, cobalt, vanadium, chromium, copper, nickel, and ruthenium, and mixtures thereof, providing that the oxygen-containing gas does not contain significant amounts of added hydrogen. The catalyst is novel and forms part of the invention. The process may be used for oxidation of alkanes, cycloalkanes, benzene and alkylbenzenes, and is suitable for use in regioselective terminal oxidation of straight chain alkanes and for selective oxidation/separation of p-dialkylbenzenes from an alkylbenzene mixture, for example, p-xylene from an isomeric mixture of xylenes.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: January 11, 2011
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Bi-Zeng Zhan, Bjorn Moden, Jihad Dakka, Jose Santiesteban, Sebastian C. Reyes, Enrique Iglesia
  • Patent number: 7838708
    Abstract: Improvements in previously disclosed methods of and apparatuses for converting alkanes, alkenes, and aromatics to olefins, alcohols, ethers, and aldehydes includes: safety improvements, use of alternative feedstocks, process simplification, improvements to the halogenation step, improvements to the reproportionation step, improvements to the solid oxide reaction, improvements to solid oxide regeneration, improvements in separations, maintenance, start-up, shut-down, and materials of construction.
    Type: Grant
    Filed: January 25, 2010
    Date of Patent: November 23, 2010
    Assignees: GRT, Inc., The Regents of the University of California
    Inventors: Jeffrey H. Sherman, Eric W. McFarland, Michael J. Weiss, Ivan Marc Lorkovic, Leroy E. Laverman, Shouli Sun, Dieter J. Schaefer, Galen D. Stucky, Peter C. Ford, Philip Grosso, Ashley W. Breed, Michael F. Doherty
  • Publication number: 20100280289
    Abstract: The present invention is a process for converting methane to methanol, comprising: feeding methane and gaseous air or oxygen or gaseous air enriched with oxygen to a reactor under an elevated pressure; said reactor having an internal surface, made of silica or coated with silica, surrounding a zone in which said gases react; and reacting said gases in said reaction zone at an elevated temperature at conditions effective to produce methanol and for valuable oxygenates. Advantageously the internal surface is made of quartz or coated with quartz Advantageously the internal surface, made of silica (advantageously quartz) or coated with silica (advantageously quartz), is treated with HF before the conversion of methane to methanol. Advantageously the reaction is carried out in the absence in said reaction zone of any added material which measurably affects the rate of the reaction or the yield of the product. Advantageously the reactor is operated under a pressure from 1 to 7.5 MPa.
    Type: Application
    Filed: July 4, 2008
    Publication date: November 4, 2010
    Applicant: TOTAL PETROCHEMICALS RESEARCH FELUY
    Inventors: Hendrik De Winne, Pierre Jacobs, Bert Sels, Walter Vermeiren
  • Publication number: 20100261125
    Abstract: The invention provides a method for rendering coal as an environmentally essentially carbon dioxide-neutral fuel. Carbon dioxide produced from coal combustion is captured, purified, combined with coalbed methane or any other natural methane or natural gas source, or with hydrogen, and reacted under reaction conditions sufficient to form methanol and/or dimethyl ether, which can be used as fuel or feedstock for derived synthetic hydrocarbons and products.
    Type: Application
    Filed: April 7, 2010
    Publication date: October 14, 2010
    Inventors: George A. Olah, G.K. Surya Prakash
  • Patent number: 7807045
    Abstract: A layered composition which can be used in various processes has been developed. The composition comprises an inner core such as a cordierite core and an outer layer comprising a refractory inorganic oxide, a fibrous component and an inorganic binder. The refractory inorganic oxide layer can be alumina, zirconia, titania, etc. while the fibrous component can be titania fibers, silica fibers, carbon fibers, etc. The inorganic oxide binder can be alumina, silica, zirconia, etc. The layer can also contain catalytic metals such as gold and platinum plus other modifiers. The layered composition is prepared by coating the inner core with a slurry comprising the refractory inorganic oxide, fibrous component, an inorganic binder precursor and an organic binding agent such as polyvinyl alcohol. The composition can be used in various hydrocarbon conversion processes.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: October 5, 2010
    Assignee: UOP LLC
    Inventors: Dean E. Rende, James E. Rekoske, Jeffery C. Bricker, Jeffrey L. Boike, Masao Takayama, Kouji Hara, Nobuyuki Aoi
  • Publication number: 20100152474
    Abstract: The present invention relates to a method of producing methanol from a methane source by oxidizing methane under conditions sufficient to a mixture of methanol and formaldehyde while minimizing the formation of formic acid and carbon dioxide. The oxidation step is followed by treatment step in which formaldehyde is converted into methanol and formic acid which itself can further be converted into methanol via catalytic hydrogenation of intermediately formed methyl formate.
    Type: Application
    Filed: February 23, 2010
    Publication date: June 17, 2010
    Inventors: George A. Olah, G.K. Surya Prakash
  • Patent number: 7718834
    Abstract: A method for preparing linear long chain fatty alcohols having 20 to 40 carbon atoms by a growth reaction of ethylene on aluminum compounds.
    Type: Grant
    Filed: June 22, 2005
    Date of Patent: May 18, 2010
    Inventor: Holger Ziehe