Patents Assigned to Topsoe A/S
  • Corrosion resistance of high temperature alloys
    Publication number: 20020079023
    Abstract: A method for enhancing the protection of high temperature alloys containing iron, nickel and chromium against high temperature corrosion by carburization or metal dusting is achieved by depositing a thin layer of a metal selected from one or more of the noble metals, precious metals, metals from groups IVA, IVB, and group VA, VB of the Periodic Table and mixtures thereof with a thickness in the range of from 0.01 to 10 &mgr;m on the surface to be protected, and annealing the treated surface in an inert atmosphere at a predetermined temperature for a sufficient time to render the treated surface resistant to carburization or metal dusting.
    Type: Application
    Filed: October 22, 2001
    Publication date: June 27, 2002
    Applicant: Haldor Topsoe A/S
    Inventors: Ib Alstrup, Ib Chorkendorff
  • Process for the catalytic hydrotreating of silicon containing naphtha
    Publication number: 20020056665
    Abstract: Process for the catalytic hydrotreating of a hydrocarbon feed stock containing silicon compounds by contacting the feed stock in presence of hydrogen with a hydrotreating catalyst at conditions to be effective in the hydrotreating of the feed stock, the improvement of which comprises the step of moisturising the hydrotreating catalyst with an amount of water added to the feed stock between 0.01 and 10 vol %.
    Type: Application
    Filed: September 10, 2001
    Publication date: May 16, 2002
    Applicant: Haldor Topsoe A/S
    Inventors: Per Zeuthen, Lars Pleth Nielsen, Steffen Vissing Christensen, Joachim Jacobsen
  • Production of hydrogen and carbon monoxide containing synthesis gas by partial oxidation
    Publication number: 20020058005
    Abstract: A process for the preparation of a synthesis gas containing hydrogen and carbon monoxide by a combination of catalytic partial oxidation and further an autothermal reforming process, comprising
    Type: Application
    Filed: September 18, 2001
    Publication date: May 16, 2002
    Applicant: Haldor Topsoe A/S
    Inventors: Kim Aasberg-Petersen, Thomas Sandahl Christensen
  • Method for the removal of particulate matter from aqueous suspension
    Publication number: 20020053543
    Abstract: Method for the removal of particulate matter from aqueous suspension comprising steps of
    Type: Application
    Filed: August 23, 2001
    Publication date: May 9, 2002
    Applicant: Haldor Topsoe A/S
    Inventor: Niels Christiansen
  • Process for the autothermal reforming of a hydrocarbon feedstock containing higher hydrocarbons
    Patent number: 6375916
    Abstract: Process for preparation of a hydrogen and/or carbon monoxide rich gas by catalytic autothermal reforming of a hydrocarbon feedstock containing higher hydrocarbons in an autothermal reformer comprising the further steps of (a) passing the hydrocarbon feedstock through a reactor containing steam reforming catalyst to remove or reduce the contents of higher hydrocarbons in the hydrocarbon feedstock; (b) passing the effluent from the first reactor to an autothermal reformer; and (c) withdrawing from the autothermal reformer a product gas rich in hydrogen and carbon monoxide.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: April 23, 2002
    Assignee: Haldor Topsoe A/S
    Inventors: Thomas Sandahl Christensen, Jens-Henrik Bak Hansen, Peter Seier Christensen, Ivar Ivarsen Primdahl
  • Process for the preparation of mono alkyl aromatic compounds
    Publication number: 20020045788
    Abstract: Process for the mono alkylation of a hydrocarbon substrate containing aromatic hydrocarbon compounds comprising contacting the aromatic substrate with an alkylating agent consisting of a mixture of olefinic compounds and poly-alkylated aromatic compounds in presence of a fluorinated sulphonic acid.
    Type: Application
    Filed: August 20, 2001
    Publication date: April 18, 2002
    Applicant: Haldor Topsoe A/S
    Inventors: Sven I. Hommeltoft, Karsten Laurents
  • Hydrotreating catalyst particles
    Publication number: 20020045540
    Abstract: Hydrotreating catalyst containing one or more metal oxides and/or sulphides selected from Group VI-B and Group VIII of the Periodic Table supported on a porous refractory carrier, wherein the catalyst being in form of an angular extrudate with rounded edges.
    Type: Application
    Filed: August 23, 2001
    Publication date: April 18, 2002
    Applicant: Haldor Topsoe A/S
    Inventor: Jesper Bartholdy
  • High electrical power current limiter being useful in electrical power systems
    Publication number: 20020044037
    Abstract: A high electrical power current limiter comprising a high temperature superconducting sacrificial fuse in series with superconductive or normalconductive equipment to be protected, wherein the high temperature superconducting fuse has a critical current density being lower than a fault current.
    Type: Application
    Filed: June 13, 2001
    Publication date: April 18, 2002
    Applicant: Haldor Topsoe A/S
    Inventors: Jens Christiansen, Jorgen Gutzon Larsen
  • Process for the catalytic selective oxidation of a hydrocarbon compound in presence of mesoporous zeolite
    Publication number: 20020038057
    Abstract: Processes applying mesoporous titanium containing zeolite based catalysts for selective oxidation or epoxidation of hydrocarbons by peroxides.
    Type: Application
    Filed: September 21, 2001
    Publication date: March 28, 2002
    Applicant: Haldor Topsoe A/S
    Inventors: Iver Schmidt, Michael Brorson, Claus J.H. Jacobsen
  • PROCESS FOR THE INTEGRATED PREPARATION OF AMMONIA AND UREA
    Publication number: 20020035293
    Abstract: Process for the combined preparation of urea and ammonia reactant by steps of providing ammonia synthesis gas containing carbon dioxide and conversion of the synthesis gas to the ammonia reactant, reacting the ammonia reactant with the carbon dioxide in the synthesis gas to ammonium carbamate and to urea product, which process comprises further steps of
    Type: Application
    Filed: September 14, 2001
    Publication date: March 21, 2002
    Applicant: Haldor Topsoe A/S
    Inventor: Christian Speth
  • Method of preparing zeolite single crystals with straight mesopores
    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
  • Process of paraffin isomerisation and heteropoly acids supported on inert supports as isomerisation catalysts
    Publication number: 20020023859
    Abstract: A process for conversion of hydrocarbon feed by contacting the feed with a catalyst containing heteropoly acid supported on a carrier at reaction conditions being effective in the conversion of the feed, wherein the carrier is selected from substantially inert inorganic amorphous or crystalline material, which retains characteristic structure of the heteropoly acid as evidenced by vibration frequencies around 985 and 1008 cm−1, and which has a surface area larger than 15 m2/g excluding surface area in pores below 15 Å in diameter.
    Type: Application
    Filed: July 12, 2001
    Publication date: February 28, 2002
    Applicant: Haldor Topsoe A/S
    Inventors: Olga V. Masloboishchikova, Aleksandr V. Ivanow, Tatjana V. Vasina, Leonid M. Kustov, Peter Lehrmann, Simon Jacobsen, Jindrich Houzvicka
  • Process for the recovery of perfluorinated sulphonic acids from spent acid
    Patent number: 6340414
    Abstract: Process for the recovery of fluorinated sulphonic acid including the step of subjecting the spent acid to heat treatment with stepwise or continuously increasing temperature, withdrawing at least two fractions during the heat treatment; and recovering the fluorinated sulphonic acid from each fraction.
    Type: Grant
    Filed: July 7, 1999
    Date of Patent: January 22, 2002
    Assignee: Haldor Topsoe A/S
    Inventor: Sven Ivar Hommeltoft
  • Method of operating a compression ignition engine
    Patent number: 6340003
    Abstract: Method of operating a compression engine on dimethylether containing fuel obtained by conversion of methanol primary fuel, comprising the steps of: (a) pressurising the primary methanol fuel in its liquid form to a final engine injection pressure; (b) preheating the pressurised primary fuel by heat contained in engine exhaust gas; (c) introducing and converting the primary fuel at injection temperature of the engine and the injection pressure to dimethylether containing fuel by contact with a methanol dehydration catalyst; and (d) injection the dimethylether containing fuel at the injection pressure and temperature into the engine.
    Type: Grant
    Filed: December 11, 2000
    Date of Patent: January 22, 2002
    Assignee: Haldor Topsoe A/S
    Inventors: Peter Schoubye, Poul Erik Højlund Nielsen, Niels Jørgen Blom
  • Supported superconductor
    Patent number: 6339194
    Abstract: A supported superconductor device which is useful as a superconducting current lead or as a high voltage current regulator. The device is formed of a tubular support, with a layer of ceramic, glassy or glass ceramic material adhered to the inner wall of the tubular support, the layer of material embedding a superconducting layer centrally arranged within the material of the first layer, the material of the first layer having a minimum expansion coefficient and being reinforced with pore filling material.
    Type: Grant
    Filed: March 9, 1999
    Date of Patent: January 15, 2002
    Assignee: Haldor Topsoe A/S
    Inventors: Jørgen Gutzon Larsen, Jens Christiansen
  • Process for autothermal catalytical stream reforming
    Patent number: 6338833
    Abstract: Process for the preparation of a hydrogen and/or carbon monoxide rich gas from a hydrocarbon feedstock comprising partial oxidation of the feedstock with an oxidant supplied by permeation through a membrane and steam reforming of the feedstock in presence of a steam reforming catalyst being arranged on permeation side of the membrane, wherein steam reforming activity of catalyst is reduced at inlet region of the catalyst bed.
    Type: Grant
    Filed: February 23, 2000
    Date of Patent: January 15, 2002
    Assignee: Haldor Topsoe A/S
    Inventor: Kim Aasberg-Petersen
  • Process for catalytic ammonia production - preparation and recovery of ammonia synthesis catalyst
    Publication number: 20020004451
    Abstract: A catalyst active in ammonia synthesis with improved activity and a process for the recovery of useful components from the catalyst.
    Type: Application
    Filed: July 2, 2001
    Publication date: January 10, 2002
    Applicant: Haldor Topsoe A/S
    Inventors: Martin Muhler, Olaf Hinrichsen, Hubert Bielawa, Claus J. Jacobsen
  • Process for pre-reforming of oxygen-containing gas
    Patent number: 6335474
    Abstract: Process for the catalytic steam reforming of a hydrocarbon feed stock with a content of higher hydrocarbons and oxygen comprising the steps of catalytic pre-reforming the feed stock and steam reforming the pre-reformed feed stock, the pre-reforming step is carried out in presence of a fixed bed catalyst comprising at least a portion of a noble metal catalyst being active in oxidation of hydrocarbons to carbon oxides and conversion of higher hydrocarbons to methane, wherein the noble metal catalyst is supported on a carrier of MgO and/or MgAl2O4 spinel.
    Type: Grant
    Filed: August 16, 2000
    Date of Patent: January 1, 2002
    Assignee: Haldor Topsoe A/S
    Inventors: Martin Østberg, Jens-Henrik Bak Hansen, Poul Crik Iløjlund Nielsen, Kim Aasberg-Petersen
  • Process for the production of a hydrogen rich gas
    Publication number: 20010055560
    Abstract: Process for the production of a hydrogen rich gas without formation of hydrocarbons comprising water gas shift conversion of a gas containing carbon monoxide and steam at a temperature of between 400° C. and 850° C. in the presence of a catalyst, which catalyst comprises one or more of the elements Mg, Mn, Al, Zr, La, Ce, Pr, and Nd, being able to form basic oxides, and mixtures thereof.
    Type: Application
    Filed: April 23, 2001
    Publication date: December 27, 2001
    Applicant: Haldor Topsoe A/S
    Inventors: Niels C. Schiodt, Poul E. Nielsen, Peter Lehrmann, Kim Aasberg-Petersen
  • Process and reactor for the preparation of hydrogen and carbon monoxide rich gas
    Publication number: 20010048912
    Abstract: Process for suppression of soot formation in the preparation of hydrogen and/or carbon monoxide rich gas by partial oxidation of a hydrocarbon feedstock, comprising the steps of
    Type: Application
    Filed: January 3, 2001
    Publication date: December 6, 2001
    Applicant: Haldor Topsoe A/S
    Inventors: Ivar I. Primdahl, Thomas S. Christensen