Patents by Inventor Poul Erik Højlund Nielsen

Poul Erik Højlund Nielsen 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: 20200095193
    Abstract: The invention relates to a process for producing a product gas comprising acetonitrile and/or hydrogen cyanide from a feed stream comprising ammonia and methanol over a solid catalyst comprising a support, a first metal and a second metal on the support, wherein the first metal and the second metal are in the form of a chemical compound, wherein the first metal is Fe, Ru or Co and the second metal is Sn, Zn, or Ge. The pressure is ambient pressure or higher and the temperature lies in a range from about 400° C. to about 700° C. Thus, the process for producing acetonitrile and/or hydrogen cyanide from ammonia and methanol may be catalyzed by a single catalyst and may be carried out in a single reactor. The invention also relates to a catalyst, a method for activating a catalyst and use of a catalyst for catalysing production of acetonitrile and/or hydrogen cyanide from ammonia and methanol.
    Type: Application
    Filed: February 1, 2018
    Publication date: March 26, 2020
    Applicant: HALDOR TOPSØE A/S
    Inventors: Poul Erik HØJLUND NIELSEN, Rasmus Munksgård NIELSEN, Brian Kjærgaard OLSEN
  • Publication number: 20190144376
    Abstract: In a process for the synthesis of a nitrile by endothermic catalyzed reaction of ammonia with a hydrocarbon using heating obtained by passing an alternating current through a metallic coil, the endothermic reaction between ammonia and the hydrocarbon takes place in a reactor with direct inductive heating in the reaction zone. The heating is extremely fast, which makes the reaction practically instantaneous.
    Type: Application
    Filed: April 24, 2017
    Publication date: May 16, 2019
    Applicant: HALDOR TOPSØE A/S
    Inventors: Poul Erik HØJLUND NIELSEN, Burcin TEMEL MCKENNA, John Bøgild HANSEN, Rasmus Munksgård NIELSEN
  • Publication number: 20190112187
    Abstract: In a process for producing hydrogen or syngas by methanol cracking, whereby methanol is catalytically decomposed into hydrogen and carbon monoxide in an endothermal reaction, said reaction takes place in a reactor with direct inductive heating in the reaction zone. The heating is obtained by passing an alternating current through a metallic coil located inside the reactor or by using induction heated catalyzed hardware in the shape of a ferromagnetic structure, which is coated with an oxide impregnated with the catalytically active phase.
    Type: Application
    Filed: April 24, 2017
    Publication date: April 18, 2019
    Applicant: HALDOR TOPSØE A/S
    Inventors: Peter Mølgaard MORTENSEN, Martin ØSTBERG, Poul Erik HØJLUND NIELSEN
  • Publication number: 20190091664
    Abstract: The invention relates to a catalyst material comprising a support, a first metal and a second metal on said support. The first and second metals are in the form of a chemical compound. The first metal is Fe, Co or Ni, and the second metal is selected from the group consisting of Sn, Zn and In. The invention also relates to a process for the preparation of hydrogen cyanide (HCN) from methane (CH4) and ammonia (NH3), wherein the methane and ammonia are contacted with a catalyst according to the invention.
    Type: Application
    Filed: November 30, 2018
    Publication date: March 28, 2019
    Inventors: Burcin Temel McKenna, Poul Erik Højlund Nielsen
  • Publication number: 20190054453
    Abstract: A catalyst for the dehydrogenation of alkanes to alkenes comprises a catalytically active material supported on a carrier, wherein the catalytically active material is a metallic sulfide (MeS) comprising Fe, Co, Ni, Cu, Mo or W or any combination of two or more metals selected from Pb, Sn, Zn, Fe, Co, Ni, Cu, Mo and W. The catalyst is regenerated in several steps. The dehydrogenation is carried out at a temperature between 450 and 650° C. and a pressure from 0.9 bar below ambient pressure to 5 bar above ambient pressure.
    Type: Application
    Filed: March 7, 2017
    Publication date: February 21, 2019
    Applicant: HALDOR TOPSØE A/S
    Inventors: Poul Erik HØJLUND NIELSEN, Rasmus Munksgård NIELSEN, Lived J. LEMUS-YEGRES
  • Publication number: 20190047921
    Abstract: A catalyst for the dehydrogenation of alkanes to alkenes comprises lead(II) sulfide (PbS) as catalytically active material supported on a carrier. The dehydrogenation is carried out at a temperature between 500 and 650° C. and at a pressure from 0.5 bar below ambient pressure to 5 bar above ambient pressure.
    Type: Application
    Filed: March 7, 2017
    Publication date: February 14, 2019
    Applicant: HALDOR TOPSØE A/S
    Inventors: Poul Erik HØJLUND NIELSEN, Rasmus Munksgård NIELSEN, Lived J. LEMUS-YEGRES
  • Patent number: 10150715
    Abstract: Process for dehydrogenation of alkanesor alkylbenzenes by using metal sulfide catalyst under the presence of small amounts of hydrogen sulfide.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: December 11, 2018
    Assignee: Haldor Topsoe A/S
    Inventors: Poul Erik Højlund Nielsen, John Bøgild Hansen
  • Publication number: 20180311630
    Abstract: A reactor system for dehydrogenation of alkanes in a given temperature range upon bringing a reactant stream including alkanes into contact with a catalytic mixture. The reactor system includes a reactor unit arranged to accommodate the catalytic mixture, where the catalytic mixture includes catalyst particles and a ferromagnetic material. The catalyst particles are arranged to catalyze the dehydrogenation of alkanes. The ferromagnetic material is ferromagnetic at least at temperatures up to an upper limit of the given temperature range. The reactor system moreover includes an induction coil arranged to be powered by a power source supplying alternating current and being positioned so as to generate an alternating magnetic field within the reactor unit upon energization by the power source, whereby the catalytic mixture is heated to a temperature within the temperature range by means of the alternating magnetic field. Also, a catalytic mixture and a method of dehydrogenating alkanes.
    Type: Application
    Filed: October 24, 2016
    Publication date: November 1, 2018
    Applicant: HALDOR TOPSØE A/S
    Inventors: Poul Erik HØJLUND NIELSEN, Rasmus Munksgård NIELSEN, John Bøgild HANSEN, Burcin TEMEL MCKENNA
  • Publication number: 20180243711
    Abstract: A reactor system for carrying out an endothermic catalytic chemical reaction in a given temperature range upon bringing a reactant into contact with a catalyst material. The reactor system includes a reactor unit arranged to accommodate catalyst material including one or more ferromagnetic macroscopic supports susceptible for induction heating where the one or more ferromagnetic macroscopic supports are ferromagnetic at temperatures up to an upper limit of the given temperature range. The one or more ferromagnetic macroscopic supports are coated with an oxide, and the oxide is impregnated with catalytically active particles. The reactor system moreover includes an induction coil arranged to be powered by a power source supplying alternating current and being positioned so as to generate an alternating magnetic field within the reactor unit upon energization by the power source, whereby the catalyst material is heated to a temperature within the temperature range by the alternating magnetic field.
    Type: Application
    Filed: August 17, 2016
    Publication date: August 30, 2018
    Applicant: HALDOR TOPSØE A/S
    Inventors: Peter Mølgaard MORTENSEN, Martin ØSTBERG, Poul Erik HØJLUND NIELSEN
  • Publication number: 20180244592
    Abstract: A reactor system for dehydrogenation of ethylbenzene to styrene in a given temperature range T upon bringing a reactant stream including ethylbenzene into contact with a catalytic mixture. The reactor system includes a reactor unit arranged to accommodate the catalytic mixture, the catalytic mixture including catalyst particles in intimate contact with a ferromagnetic material, where the catalyst particles are arranged to catalyze the dehydrogenation of ethylbenzene to styrene. The reactor system moreover includes an induction coil arranged to be powered by a power source supplying alternating current and being positioned so as to generate an alternating magnetic field within the reactor unit upon energization by the power source, whereby the catalytic mixture is heated to a temperature within the temperature range T by means of the alternating magnetic field. Also, a catalytic mixture and a method of dehydrogenating ethylbenzene to styrene.
    Type: Application
    Filed: October 24, 2016
    Publication date: August 30, 2018
    Applicant: HALDOR TOPSØE A/S
    Inventors: Poul Erik HØJLUND NIELSEN, Rasmus Munksgård NIELSEN, John Bøgild HANSEN, Burcin TEMEL MCKENNA
  • Publication number: 20170247302
    Abstract: Process for dehydrogenation of alkanesor alkylbenzenes by using metal sulfide catalyst under the presence of small amounts of hydrogen sulfide.
    Type: Application
    Filed: September 23, 2015
    Publication date: August 31, 2017
    Applicant: Haldor Topsøe A/S
    Inventors: Poul Erik Højlund Nielsen, John Bøgild Hansen
  • Patent number: 9611202
    Abstract: Process for the preparation of dimethyl ether product by catalytic conversion of synthesis gas to dimethyl ether comprising the steps of contacting a stream of synthesis gas comprising carbon dioxide in a dimethyl ether synthesis step in one or more reactors and with one or more catalysts active in the formation of methanol and dehydration of methanol to dimethyl ether and forming a product mixture comprising dimethyl ether, carbon dioxide and unconverted synthesis gas; cooling and separating the product mixture into a first liquid phase comprising dimethyl ether and carbon dioxide being dissolved in the formed dimethyl ether, and into a first gaseous phase comprising unconverted synthesis gas containing carbon monoxide and carbon dioxide; passing the first liquid phase to a scrubbing zone and contacting the phase with a liquid sorbent being effective in absorption of carbon dioxide; and withdrawing a dimethyl ether product being depleted in carbon dioxide from the scrubbing zone.
    Type: Grant
    Filed: August 14, 2013
    Date of Patent: April 4, 2017
    Assignee: Haldor Topsoe A/S
    Inventors: Finn Joensen, Jorgen Madsen, Poul Erik Højlund Nielsen
  • Patent number: 9364789
    Abstract: The present invention provides a method for recovering hydrogen from hydrogen sulfide using a supported silver catalyst, and a method for purifying a gas stream containing hydrogen sulfide using such a catalyst.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: June 14, 2016
    Assignee: Haldor Topsoe A/S
    Inventor: Poul Erik Højlund Nielsen
  • Patent number: 9255227
    Abstract: Process for the synthesis of hydrocarbon constituents of gasoline comprising catalytic conversion in a gasoline synthesis step of an oxygenate-containing feed comprising methanol and/or dimethyl ether and a mixture of at least on a total oxygenate basis 0.05 wt % C3+ higher alcohols and/or their oxygenate equivalents to hydrocarbon constituents of gasoline.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: February 9, 2016
    Assignee: Haldor Topsoe A/S
    Inventors: Finn Joensen, Poul Erik Højlund Nielsen, Niels Christian Schiødt, Ton V. W. Janssens, Bodil Voss
  • Publication number: 20150238899
    Abstract: The present invention provides a method for recovering hydrogen from hydrogen sulfide using a supported silver catalyst, and a method for purifying a gas stream containing hydrogen sulfide using such a catalyst.
    Type: Application
    Filed: August 15, 2013
    Publication date: August 27, 2015
    Applicant: Haldor Topsøe A/S
    Inventor: Poul Erik Højlund Nielsen
  • Publication number: 20150232401
    Abstract: Process for the preparation of dimethyl ether product by catalytic conversion of synthesis gas to dimethyl ether comprising the steps of contacting a stream of synthesis gas comprising carbon dioxide in a dimethyl ether synthesis step in one or more reactors and with one or more catalysts active in the formation of methanol and dehydration of methanol to dimethyl ether and forming a product mixture comprising dimethyl ether, carbon dioxide and unconverted synthesis gas; cooling and separating the product mixture into a first liquid phase comprising dimethyl ether and carbon dioxide being dissolved in the formed dimethyl ether, and into a first gaseous phase comprising unconverted synthesis gas containing carbon monoxide and carbon dioxide; passing the first liquid phase to a scrubbing zone and contacting the phase with a liquid sorbent being effective in absorption of carbon dioxide; and withdrawing a dimethyl ether product being depleted in carbon dioxide from the scrubbing zone.
    Type: Application
    Filed: August 14, 2013
    Publication date: August 20, 2015
    Applicant: Haldor Topsoe A/S
    Inventors: Finn Joensen, Jorgen Madsen, Poul Erik Højlund Nielsen
  • Patent number: 8889089
    Abstract: A process for a reduction in the amount of sulphur compounds, hydrogen cyanide, formic acid and formic acid derivatives in synthesis gas comprising these compounds, the process comprising contacting the synthesis gas with a sulphur absorbent comprising material and thereafter with a catalyst comprising one or more metals selected from the group consisting of silver, gold, copper, palladium, platinum and their mixtures and supported on a carrier comprising at least one of the oxides of scandium, yttrium, lanthanum, cerium, titanium, zirconium, aluminum, zinc, chromium and molybdenum.
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: November 18, 2014
    Assignee: Haldor Topsoe A/S
    Inventors: Kim Aasberg-Petersen, Ib Dybkjaer, Poul Erik Højlund Nielsen
  • Patent number: 8765019
    Abstract: Process for the preparation of synthesis gas from an essentially dry hydrocarbon feedstock (1) comprising olefins, hydrogen and carbon monoxide, the process comprising the steps: (a) selectively hydrogenating the olefins in the hydrocarbon feedstock at a temperature between 60 to 190° C. (2) to obtain a hydrogenated hydrocarbon feedstock comprising hydrogen, carbon monoxide and saturated hydrocarbons (3; (b) adding steam (4) to the hydrogenated hydrocarbon feedstock; (c) performing a water gas shift reaction in the presence of steam on the hydrogenated hydrocarbon feedstock (6) to obtain a shifted, hydrogenated hydrocarbon mixture; (d) converting the shifted, hydrogenated hydrocarbon mixture (8) to obtain a synthesis gas.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: July 1, 2014
    Assignee: Haldor Topsoe A/S
    Inventors: Kim Aasberg-Petersen, Poul Erik Højlund Nielsen, Peter Seier Christensen, Charlotte Stub Nielsen, Burcin Temel
  • Patent number: 8728206
    Abstract: Method of removing metal carbonyls from a gaseous stream comprising contacting the metal carbonyl containing gaseous stream at elevated temperature with a particulate sorbent comprising modified copper aluminum spinel, wherein the copper aluminium spinel has been modified by a thermal treatment in a reducing atmosphere and a particulate sorbent for use in a method comprising a copper aluminium spinel being modified by thermal treatment in a reducing atmosphere at a temperature of between 250 and 500° C.
    Type: Grant
    Filed: May 17, 2011
    Date of Patent: May 20, 2014
    Assignee: Haldor Topsoe A/S
    Inventors: Pablo Beato, Poul Erik Højlund Nielsen
  • Patent number: 8677762
    Abstract: A process for the preparation of hydrocarbon products and for the generation of power that includes the steps of (a) providing a synthesis gas having a hydrogen to carbon monoxide ratio of between 0.1 and 1; (b) contacting the synthesis gas with one or more catalysts which together catalyse a reaction of hydrogen and carbon monoxide to oxygenates comprising methanol and dimethyl ether with a dimethyl ether to methanol ratio of higher than 2 and a carbon dioxide content of above 20 mole %; (c) contacting the carbon dioxide containing oxygenate mixture at an inlet temperature of between 240° and 4000° C. with a catalyst being active in the conversion of oxygenate to higher hydrocarbons and a tail gas being rich in carbon dioxide; (d) combusting the carbon dioxide rich tail gas in a gas turbine combustion chamber to flue gas; and (e) expanding the flue gas stream through a gas turbine for the generation of power.
    Type: Grant
    Filed: August 13, 2008
    Date of Patent: March 25, 2014
    Assignee: Haldor Topsoe A/S
    Inventors: Poul Erik Højlund Nielsen, Thomas Rostrup-Nielsen, Bodil Voss, Finn Joensen