Patents by Inventor Soren Dahl

Soren Dahl has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20120225956
    Abstract: A catalytic composition is provided for methanol production. The composition includes an alloy of at least two different metals M and M?, where M is selected from Ni, Pd, Ir, and Ru, and M? is selected from Ga, Zn, and Al. A molar ratio of M to M? is in the range of 1:10 to 10:1, and the alloy is configured to catalyze a reduction of CO2 to methanol.
    Type: Application
    Filed: March 2, 2012
    Publication date: September 6, 2012
    Applicant: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Felix Studt, Frank Abild-Pedersen, Jens K. Norskov, Soren Dahl, Irek Sharafutdinov, Christian F. Elkjaer
  • Patent number: 8202638
    Abstract: A fuel processing method for a solid oxide fuel cell stack comprising the steps of: (a) supplying a feed stream comprising ethanol to a methanation reactor containing catalytic material for the methanation of ethanol; (b) processing the feed stream in the methanation reactor under adiabatic conditions to produce an effluent fuel comprising methane; (c) transferring the effluent fuel comprising methane to the anode of a solid oxide fuel cell stack comprising at least one solid oxide fuel cell; (d) providing the cathode of the solid oxide fuel cell stack with an oxygen-containing gas; and (e) converting the fuel comprising methane and the oxygen-containing gas to electricity in the solid oxide fuel cell stack.
    Type: Grant
    Filed: September 27, 2005
    Date of Patent: June 19, 2012
    Assignee: Haldor Topsoe A/S
    Inventors: John Bøgild Hansen, Søren Dahl
  • Patent number: 8062617
    Abstract: Process for reducing nitrogen oxides to nitrogen in an exhaust gas comprising passing the exhaust gas in the presence of a reducing agent through a catalyst system comprising at least two catalyst beds, in which a first catalyst bed is an iron-beta-zeolite and a second catalyst bed downstream is silver supported on alumina.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: November 22, 2011
    Assignee: Haldor Topsøe A/S
    Inventors: Alexandr Stakhev, Søren Dahl, Ioannis Gekas, Pär L. T. Gabrielsson
  • Publication number: 20110070134
    Abstract: Process for reducing nitrogen oxides to nitrogen in an exhaust gas comprising passing the exhaust gas in the presence of a reducing agent through a catalyst system comprising at least two catalyst beds, in which a first catalyst bed is an iron-beta-zeolite and a second catalyst bed downstream is silver supported on alumina.
    Type: Application
    Filed: September 14, 2010
    Publication date: March 24, 2011
    Inventors: ALEXANDR STAKHEV, SØREN DAHL, IOANNIS GEKAS, PÄR L.T. GABRIELSSON
  • Patent number: 7585339
    Abstract: Process for selectively reforming ethanol to a hydrogen-rich product in the presence of at least one catalyst comprising a catalytically active material supported on a carrier, the process comprising the following steps in which the at least one catalyst is active: transferring a stream of ethanol and steam and a hydrogen-comprising stream, the molar ratio of ethanol to hydrogen being 0.2-1, to a dehydration/hydrogenation reactor for dehydrating ethanol to ethylene and for hydrogenating ethylene to produce an ethane-containing stream, adiabatically pre-reforming the ethane-comprising stream to a stream comprising methane, steam reforming the stream comprising methane to produce a mixture comprising hydrogen and carbon monoxide, converting the mixture comprising hydrogen and carbon monoxide from the steam reforming step under water gas shift conditions to produce a hydrogen-rich product stream.
    Type: Grant
    Filed: September 15, 2004
    Date of Patent: September 8, 2009
    Assignee: Haldor Topsoe A/S
    Inventors: Søren Dahl, Charlotte Stub Nielsen, Poul Erik Højlund Nielsen, Kim Aasberg-Petersen
  • Publication number: 20080152565
    Abstract: A method and apparatus for the removal of NO2 emission from a lean burn compression ignition engine, wherein NO2 containing engine exhaust gas is brought in contact with a catalyst being active in the reduction of NO2 to NO and comprising at least one platinum group metal with the proviso that the platinum metal is not platinum and at least one redox active metal oxide and thereby reducing NO2 contained in the exhaust gas to NO by reaction with CO, hydrocarbons and/or soot being present in the exhaust gas.
    Type: Application
    Filed: October 11, 2007
    Publication date: June 26, 2008
    Inventors: Soren Dahl, Keld Johansen, Soren Pehrson, Gurli Mogensen
  • Publication number: 20070093559
    Abstract: Catalytic process for oxidation or reduction of organic and inorganic compounds comprising contacting the compound under oxidation or reduction conditions with a supported catalyst consisting of nickel as the active catalytic component promoted with silver or gold, the silver or gold being present in an amount between 0.001% to 30% by weight calculated on the amount of nickel in the catalyst.
    Type: Application
    Filed: September 10, 2004
    Publication date: April 26, 2007
    Inventors: Jens Norskov, Jens Hyldtoft, Bjerne Clausen, Soren Dahl
  • Publication number: 20070072017
    Abstract: A fuel processing method for a solid oxide fuel cell stack comprising the steps of: (a) supplying a feed stream comprising ethanol to a methanation reactor containing catalytic material for the methanation of ethanol; (b) processing the feed stream in the methanation reactor under adiabatic conditions to produce an effluent fuel comprising methane; (c) transferring the effluent fuel comprising methane to the anode of a solid oxide fuel cell stack comprising at least one solid oxide fuel cell; (d) providing the cathode of the solid oxide fuel cell stack with an oxygen-containing gas; and (e) converting the fuel comprising methane and the oxygen-containing gas to electricity in the solid oxide fuel cell stack.
    Type: Application
    Filed: September 27, 2005
    Publication date: March 29, 2007
    Inventors: John Hansen, Soren Dahl
  • Publication number: 20060247419
    Abstract: The present invention relates to various uses of complementing proteins protein fragments to discover chemical compounds or drugs interfering with protein translocation/redistribution and/or protein interactions. The invention takes advantage of the fact that many interacting proteins reside in separate and distinct locations prior to the activation of the signaling pathways in which they play their part. The invention also takes advantage of interaction domains (FRBP, FKBP12) that can be induced to interact. Specifically disclosed are GFP (EGFP, F64L mutated EYFP) complementation.
    Type: Application
    Filed: April 22, 2003
    Publication date: November 2, 2006
    Applicant: BioImage A/S
    Inventors: Søren Dahl, Bernard Terry, Morten Praestegaard, Soren Jensby, Grith Hagel
  • Publication number: 20060220468
    Abstract: The present invention relates to a power converter for supply of electrical power to an aircraft on the ground. More specifically it relates to a power converter comprising a housing enclosing a frequency converter for provision of a stabilized multi-phase alternating output voltage to an aircraft through an output cable that is supplied from a cable drum integrated in the housing and facilitating connection to aircrafts with variable distances between their power sockets and the converter.
    Type: Application
    Filed: March 22, 2006
    Publication date: October 5, 2006
    Inventor: Soren Dahl
  • Patent number: 7087782
    Abstract: Process for the preparation of acrolein and/or acrylic acid by catalytic gas-phase selective oxidation reaction of propane, the process comprising contacting a reaction gas containing propane and an oxygen-containing gas over a mixed metal oxide solid catalyst supported on a TiO2—MoO3 porous support.
    Type: Grant
    Filed: April 25, 2005
    Date of Patent: August 8, 2006
    Assignee: Haldor Topsoe A/S
    Inventors: Georgij Vacheevich Isaguliants, Inna Pavlovna Belomestnykh, Søren Dahl
  • Patent number: 7078578
    Abstract: A process for the conversion of oxygenates to hydrocarbons comprising contacting a feed stream comprising oxygenates with a catalyst containing a microporous material under oxygenate conversion conditions, wherein the catalyst contains a crystalline microporous material with intra-crystalline mesopores. The invention also includes a composition for use in the above process.
    Type: Grant
    Filed: May 7, 2004
    Date of Patent: July 18, 2006
    Assignee: Haldor Topsoe A/S
    Inventors: Ton V. W. Janssens, Søren Dahl, Claus Hviid Christensen
  • Publication number: 20060057058
    Abstract: Process for selectively reforming ethanol to a hydrogen-rich product in the presence of at least one catalyst comprising a catalytically active material supported on a carrier, the process comprising the following steps in which the at least one catalyst is active: transferring a stream of ethanol and steam and a hydrogen-comprising stream, the molar ratio of ethanol to hydrogen being 0.2-1, to a dehydration/hydrogenation reactor for dehydrating ethanol to ethylene and for hydrogenating ethylene to produce an ethane-containing stream, adiabatically pre-reforming the ethane-comprising stream to a stream comprising methane, steam reforming the stream comprising methane to produce a mixture comprising hydrogen and carbon monoxide, converting the mixture comprising hydrogen and carbon monoxide from the steam reforming step under water gas shift conditions to produce a hydrogen-rich product stream.
    Type: Application
    Filed: September 15, 2004
    Publication date: March 16, 2006
    Inventors: Soren Dahl, Charlotte Nielsen, Poul Erik Nielsen, Kim Aasberg-Petersen
  • Publication number: 20050261522
    Abstract: Process for the preparation of acrolein and/or acrylic acid by catalytic gas-phase selective oxidation reaction of propane, the process comprising contacting a reaction gas containing propane and an oxygen-containing gas over a mixed metal oxide solid catalyst supported on a TiO2—MoO3 porous support.
    Type: Application
    Filed: April 25, 2005
    Publication date: November 24, 2005
    Inventors: Georgij Isaguliants, Inna Belomestnykh, Soren Dahl
  • Publication number: 20040254409
    Abstract: A process for the conversion of oxygenates to hydrocarbons comprising contacting a feed stream comprising oxygenates with a catalyst containing a microporous material under oxygenate conversion conditions, wherein the catalyst contains a crystalline microporous material with intra-crystalline mesopores. The invention also includes a composition for use in the above process.
    Type: Application
    Filed: May 7, 2004
    Publication date: December 16, 2004
    Inventors: Ton V.W. Janssens, Soren Dahl, Claus Hviid Christensen
  • Patent number: 6620402
    Abstract: Method of preparing zeolite single crystals with straight mesopores by applying a synthesis gel with zeolite precursor composition within the pore system and on the surface of a particulate matrix material template of carbon comprising the steps of: providing a templating material with a diameter of 2 to 50 nanometers and a length-to-diameter aspect ratio of at least 5, applying the zeolite precursor to the surface of the templating material using sequential impregnation, subjecting the precursor composition to crystallising conditions, and isolating porous single zeolite crystals with straight mesopores by removing the matrix template material.
    Type: Grant
    Filed: July 6, 2001
    Date of Patent: September 16, 2003
    Assignee: Haldor Topsoe A.S
    Inventors: Claus J. H. Jacobsen, Iver Schmidt, Søren Dahl, Konrad Herbst, Søren Pehrson
  • Publication number: 20020034471
    Abstract: Method of preparing zeolite single crystals with straight mesopores by applying a synthesis gel with zeolite precursor composition within the pore system and on the surface of a particulate matrix material template of carbon comprising the steps of:
    Type: Application
    Filed: July 6, 2001
    Publication date: March 21, 2002
    Applicant: Haldor Topsoe A/S
    Inventors: Claus J.H. Jacobsen, Iver Schmidt, Soren Dahl, Konrad Herbst, Soren Pehrson