Patents by Inventor Niels Christian Schjødt

Niels Christian Schjødt 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: 20240001341
    Abstract: The present disclosure relates to an improved water gas shift catalyst, in particular an improved high temperature shift catalyst and process using the catalyst. The water gas shift catalyst includes Zn, Al, optionally Cu, and an alkali metal or alkali metal compound, wherein the content of alkali metal, preferably K, is in the range 1-6 wt %, such as 1-5 wt % or 2.5-5 wt % based on the weight of oxidized catalyst, and wherein the water gas shift catalyst has a pore volume, as determined by mercury intrusion, of 240 ml/kg or higher, such as 250 ml/kg or higher. A process for enriching a synthesis gas in hydrogen by contacting the synthesis gas in a water gas shift reactor with the water gas shift catalyst.
    Type: Application
    Filed: November 24, 2021
    Publication date: January 4, 2024
    Applicant: TOPSOE A/S
    Inventors: Jens SEHESTED, Susanne Lægsgaard JØRGENSEN, Raul MONTESANO LOPEZ, Jeremy Neil BURN, Niels Christian SCHJØDT
  • Publication number: 20240002224
    Abstract: The disclosure relates to a process for enriching a synthesis gas in hydrogen by contacting said synthesis gas with a water gas shift catalyst, the synthesis gas being a CO-rich synthesis gas including at least 15 vol % CO and at least 1 ppmv sulfur, and the water gas shift catalyst including Zn, Al, optionally Cu, and an alkali metal or alkali metal compound; the water gas shift catalyst is free of chromium (Cr) and iron (Fe), and has a pore volume, as determined by mercury intrusion, of 240 ml/kg or higher.
    Type: Application
    Filed: November 24, 2021
    Publication date: January 4, 2024
    Applicant: TOPSOE A/S
    Inventors: Jeremy Neil BURN, Raul MONTESANO LOPEZ, Jens SEHESTED, Susanne Lægsgaard JØRGENSEN, Niels Christian SCHJØDT
  • Publication number: 20240002223
    Abstract: The invention comprises a method of operating a water gas shift reactor in a transient state such as during reactor start-up, the method comprising: providing a water gas shift catalyst comprising an alkali metal or alkali metal compound; heating the water gas shift catalyst up to the reaction temperature of the water gas shift reaction under steam condensing conditions, by applying steam as a heat transfer medium for the water gas shift catalyst, and where the water gas shift catalyst has a total pore volume larger than the volume of liquid water that forms during the heating.
    Type: Application
    Filed: November 24, 2021
    Publication date: January 4, 2024
    Applicant: TOPSOE A/S
    Inventors: Jens SEHESTED, Raul MONTESANO LOPEZ, Susanne Lægsgaard JØRGENSEN, Jeremy Neil BURN, Niels Christian SCHJØDT
  • Publication number: 20230398522
    Abstract: Process for the catalytic hydrogenation of organic carbonyl compounds containing at least one functional group belonging to the group of aldehydes, ketones, esters and carboxylic acids, whereby said at least one functional group is converted to an alcohol by contacting said carbonyl compound with hydrogen and a hydrogenation catalyst at elevated temperature and pressure as well as a catalyst therefore and a process for producing said catalyst.
    Type: Application
    Filed: November 24, 2021
    Publication date: December 14, 2023
    Applicant: TOPSOE A/S
    Inventors: Poul Erik HØJLUND NIELSEN, Niels Christian SCHJØDT, Susanne Lægsgaard JØRGENSEN, Uffe Vie MENTZEL, Matthias Josef BEIER, Henrik Junge MORTENSEN
  • Patent number: 11498835
    Abstract: The present invention relates to a revamp method for increasing the front-end capacity of a plant comprising a reforming section, wherein a feed is reformed in at least one reforming step to a reformed stream comprising CH4, CO, CO2, H2 and H2O a shift section wherein the reformed stream is shifted in a shift reaction in at least a high temperature shift step, said method comprising the steps of In the High temperature shift step exchanging an original Fe-based catalyst with a non-Fe-based catalyst Increasing the feed flow to the reforming section, and The HTS step is carried out at a reduced steam/dry-gas ratio (S/DG) compared to an original S/DG in the original HTS step with the original Fe-based catalyst.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: November 15, 2022
    Assignee: HALDOR TOPSØE A/S
    Inventors: Annette E. Krøll Jensen, Christian Henrik Speth, Thomas Rostrup-Nielsen, Niels Christian Schjødt
  • Patent number: 11124423
    Abstract: A process for producing an ammonia synthesis gas, said process comprising the steps of: —Reforming a hydrocarbon feed in a reforming step thereby obtaining a synthesis gas comprising CH4, CO, CO2, H2 and H2O, —Shifting the synthesis gas in one in or more shift steps in series, —Optionally wash the synthesis gas leaving the shift section with water, —Sending the process condensate originating from cooling and washing the synthesis gas leaving the shift section to a process condensate stripper wherein the dissolved shift byproducts and dissolved gases are stripped out of the process condensate using steam resulting in a steam stream containing more than 99% of the dissolved methanol in process condensate. —Adding all or part of said steam stream from the process condensate stripper to the synthesis gas downstream the reforming step, prior to the last shift step, wherein —The steam/carbon ratio in the reforming step and the shift step is less than 2.6.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: September 21, 2021
    Assignee: Haldor Topsoe A/S
    Inventors: Christian Henrik Speth, Per Juul Dahl, Annette E. Krøll Jensen, Niels Christian Schjødt, Marcus Symreng
  • Patent number: 11087976
    Abstract: A method of producing a kesterite material of CZTS, CZTSe or CZTSSe type, including the steps of: a) preparing an acidic solution by dissolving copper and zinc salts in water in desired molar ratio, b) preparing a basic solution by dissolving an alkali metal stannate together with an alkali metal carbonate or an alkali metal hydrogen carbonate or an alkali metal hydroxide or a combination thereof, and optionally with an alkali metal selenate or an alkali metal selenite or a mixture thereof, c) carrying out a precipitation reaction by mixing the acidic and the basic solution, d) drying the precipitate thereby providing a precursor for the kesterite material, and e) sulfurizing the precursor of step d to provide the kesterite material. Also, a precursor for a kesterite material of CZTS, CZTSe or CZTSSe type.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: August 10, 2021
    Assignee: HALDOR TOPSØE A/S
    Inventors: Niels Christian Schjødt, Søren Dahl, Jesper Nerlov
  • Publication number: 20210206634
    Abstract: The present invention relates to a revamp method for increasing the front-end capacity of a plant comprising a reforming section, wherein a feed is reformed in at least one reforming step to a reformed stream comprising CH4, CO, CO2, H2 and H2O a shift section wherein the reformed stream is shifted in a shift reaction in at least a high temperature shift step, said method comprising the steps of In the High temperature shift step exchanging an original Fe-based catalyst with a non-Fe-based catalyst Increasing the feed flow to the reforming section, and The HTS step is carried out at a reduced steam/dry-gas ratio (S/DG) compared to an original S/DG in the original HTS step with the original Fe-based catalyst.
    Type: Application
    Filed: February 28, 2017
    Publication date: July 8, 2021
    Applicant: HALDOR TOPSØE A/S
    Inventors: Annette E. Krøll Jensen, Christian Henrik Speth, Thomas Rostrup-Nielsen, Niels Christian Schjødt
  • Patent number: 11027984
    Abstract: A process for producing urea with controlled excess of CO2 and/or NH3. The process includes the steps of: reforming the hydrocarbon feed gas, thereby obtaining a synthesis gas comprising CH4, CO, CO2, H2 and H2O, shifting the synthesis gas, removing CO2 from the synthesis gas, removing residual H2O and/or CO2 from the synthesis gas, removing CH4, CO, Ar and/or He, and adding stoichiometric nitrogen to produce NH3 to the synthesis gas, synthesizing NH3 to obtain a NH3 product, and adding at least part of the product CO2 and at least part of the NH3 product to a urea synthesis step to make a urea product. The amount of excess CO2 and/or NH3 is controlled by adjusting the steam/carbon in the reforming step and/or the H2O addition upstream the shift step and/or adjusting the inlet temperature to at least one or more shift steps.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: June 8, 2021
    Assignee: Haldor Topsoe A/S
    Inventors: Christian Henrik Speth, Per Juul Dahl, Annette E. Kroll Jensen, Niels Christian Schjødt, Marcus Symreng
  • Publication number: 20210130965
    Abstract: A method for the generation of a gas mixture including carbon monoxide, carbon dioxide and hydrogen for use in hydroformylation plants, including the steps of evaporating water to steam; feeding the steam to a solid oxide electrolysis cell (SOEC) or an SOEC stack at a sufficient temperature for the cell or cell stack to operate while effecting a partial conversion of steam to hydrogen; utilizing the effluent SOEC gas including H2 together with CO2 from an external source as feed for a RWGS reactor in which the RWGS reaction takes place, converting some of the CO2 and H2 to CO and H2O; removing some of or all the remaining steam from the raw product gas stream; using said gas mixture comprising CO, CO2 and H2 for liquid phase hydroformylation utilizing carbon monoxide and hydrogen as reactants, while recycling CO2 to the RWGS reactor.
    Type: Application
    Filed: April 11, 2019
    Publication date: May 6, 2021
    Applicant: HALDOR TOPSØE A/S
    Inventors: Niels Christian SCHJØDT, Rainer KÜNGAS, Berit HINNEMANN, Bengt Peter Gustav BLENNOW
  • Publication number: 20210079535
    Abstract: A method for the generation of syngas for use in hydroformylation plants comprises the steps of evaporating water to steam, mixing the steam with carbon dioxide in any desired molar ratio and feeding the resulting gas to a solid oxide electrolysis cell (SOEC) or an SOEC stack at around 700° C. while supplying an electrical current to the cell or cell stack to convert the feed gas to syngas. An advantage is that the syngas can be generated on the site where it is intended to be used.
    Type: Application
    Filed: April 16, 2018
    Publication date: March 18, 2021
    Applicant: HALDOR TOPSØE A/S
    Inventors: Niels Christian SCHJØDT, Berit HINNEMANN, Rainer KÜNGAS, Bengt Peter Gustav BLENNOW
  • Patent number: 10941038
    Abstract: A process for producing an ammonia synthesis gas, said process including the steps of: reforming a hydrocarbon feed in a reforming step thereby obtaining a synthesis gas comprising CH4, CO, CO2, H2 and H2O; and shifting said synthesis gas in a high temperature shift step over a promoted zinc-aluminum oxide based high temperature shift catalyst, wherein the steam/carbon ratio in the reforming step is less than 2.6.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: March 9, 2021
    Assignee: HALDOR TOPSØE A/S
    Inventors: Annette E. Krøll Jensen, Per Juul Dahl, Niels Christian Schjødt
  • Publication number: 20210054510
    Abstract: A method for the generation of a gas mixture comprising carbon monoxide, carbon dioxide and optionally hydrogen for use in hydroformylation plants or in carbonylation plants, including mixing an optional steam with carbon dioxide in the desired molar ratio, feeding the resulting gas to a solid oxide electrolysis cell (SOEC) or an SOEC stack at a sufficient temperature for the cell or cell stack to operate while effecting a partial conversion of carbon dioxide to carbon monoxide and optionally of steam to hydrogen, removing some or all the remaining steam from the raw product gas stream by cooling the raw product gas stream and separating the remaining product gas from a liquid, and using said gas mixture containing CO and CO2 for liquid phase synthesis reactions utilizing carbon monoxide as one of the reactants while recycling CO2 to the SOEC or SOEC stack.
    Type: Application
    Filed: April 11, 2019
    Publication date: February 25, 2021
    Applicant: HALDOR TOPSØE A/S
    Inventors: Niels Christian SCHJØDT, Rainer KÜNGAS, Berit HINNEMANN, Bengt Peter Gustav BLENNOW
  • Publication number: 20200231456
    Abstract: A process for producing UREA, said process comprising the steps of:—purification of a hydrocarbon feed gas removing Sulphur and/or chloride components if present, —reforming the hydrocarbon feed gas in a reforming step where the steam/carbon ratio is less than 2.6 thereby obtaining a synthesis gas comprising CH4, CO, CO2, H2 and H2O, —optionally adding H2O to the synthesis gas from the reforming step maintaining an overall steam/carbon less than 2.
    Type: Application
    Filed: March 7, 2018
    Publication date: July 23, 2020
    Applicant: Haldor Topsøe A/S
    Inventors: Christian Henrik Speth, Per Juul Dahl, Annette E. Kroll Jensen, Niels Christian Schjødt, Marcus Symreng
  • Publication number: 20190382277
    Abstract: A process for producing an ammonia synthesis gas, said process comprising the steps of: —Reforming a hydrocarbon feed in a reforming step thereby obtaining a synthesis gas comprising CH4, CO, CO2, H2 and H2O, —Shifting the synthesis gas in one in or more shift steps in series, —Optionally wash the synthesis gas leaving the shift section with water, —Sending the process condensate originating from cooling and washing the synthesis gas leaving the shift section to a process condensate stripper wherein the dissolved shift byproducts and dissolved gases are stripped out of the process condensate using steam resulting in a steam stream containing more than 99% of the dissolved methanol in process condensate. —Adding all or part of said steam stream from the process condensate stripper to the synthesis gas downstream the reforming step, prior to the last shift step, wherein —The steam/carbon ratio in the reforming step and the shift step is less than 2.6.
    Type: Application
    Filed: March 7, 2018
    Publication date: December 19, 2019
    Applicant: Haldor Topsøe A/S
    Inventors: Christian Henrik Speth, Per Juul Dahl, Annette E. Krøll Jensen, Niels Christian Schjødt, Marcus Symreng
  • Patent number: 10486972
    Abstract: In a process for safe production of phosgene (COCI2) from carbon monoxide and chlorine according to the reaction scheme CO (g)+Cl2 (g)?>COCI2 (g) in a plant with a capacity of phosgene below 10 t/hr, the CO is produced on site from a feed stock based mainly on CO2. The plant preferably comprises a solid oxide electrolysis cell (SOEC) stack system producing CO for use together with chlorine in the phosgene synthesis. This way of producing phosgene is based on using primary raw materials for which escape concentrations above 1000 ppm or even above 10000 ppm or 10% will not result in any health risk.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: November 26, 2019
    Assignee: Haldor Topsoe A/S
    Inventors: Niklas Bengt Jakobsson, Berit Hinnemann, Claus Friis Pedersen, Niels Christian Schjødt
  • Publication number: 20190172711
    Abstract: A method of producing a kesterite material of CZTS, CZTSe or CZTSSe type, including the steps of: a) preparing an acidic solution by dissolving copper and zinc salts in water in desired molar ratio, b) preparing a basic solution by dissolving an alkali metal stannate together with an alkali metal carbonate or an alkali metal hydrogen carbonate or an alkali metal hydroxide or a combination thereof, and optionally with an alkali metal selenate or an alkali metal selenite or a mixture thereof, c) carrying out a precipitation reaction by mixing the acidic and the basic solution, d) drying the precipitate thereby providing a precursor for the kesterite material, and e) sulfurizing the precursor of step d to provide the kesterite material. Also, a precursor for a kesterite material of CZTS, CZTSe or CZTSSe type.
    Type: Application
    Filed: September 1, 2017
    Publication date: June 6, 2019
    Applicant: HALDOR TOPSØE A/S
    Inventors: Niels Christian SCHJØDT, Søren DAHL, Jesper NERLOV
  • Publication number: 20190039886
    Abstract: A process for producing an ammonia synthesis gas, said process including the steps of: reforming a hydrocarbon feed in a reforming step thereby obtaining a synthesis gas comprising CH4, CO, CO2 , H2 and H2O; and shifting said synthesis gas in a high temperature shift step over a promoted zinc-aluminum oxide based high temperature shift catalyst, wherein the steam/carbon ratio in the reforming step is less than 2.6.
    Type: Application
    Filed: February 2, 2017
    Publication date: February 7, 2019
    Applicant: HALDOR TOPSØE A/S
    Inventors: Annette E. Krøll Jensen, Per Juul Dahl, Niels Christian Schjødt
  • Publication number: 20180194632
    Abstract: In a process for safe production of phosgene (COCI2) from carbon monoxide and chlorine according to the reaction scheme CO (g)+Cl2 (g)?>COCI2 (g) in a plant with a capacity of phosgene below 10 t/hr, the CO is produced on site from a feed stock based mainly on CO2. The plant preferably comprises a solid oxide electrolysis cell (SOEC) stack system producing CO for use together with chlorine in the phosgene synthesis. This way of producing phosgene is based on using primary raw materials for which escape concentrations above 1000 ppm or even above 10000 ppm or 10% will not result in any health risk.
    Type: Application
    Filed: June 1, 2015
    Publication date: July 12, 2018
    Applicant: Haldor Topsøe A/S
    Inventors: Niklas Bengt Jakobsson, Berit Hinnemann, Claus Friis Pedersen, Niels Christian Schjødt
  • Patent number: 9273020
    Abstract: Process for the production of a chemical compound from a carbon dioxide starting material, comprising the steps of a) providing a feed stream consisting mainly of carbon dioxide; b) electrolyzing in an electrolysis stage the carbon dioxide in the feed stream to a first gas stream containing carbon monoxide and a second gas stream containing oxygen, wherein the molar ratio between carbon monoxide and oxygen is about 1:0.5 in an electrolysis stage; c) adjusting the composition of the first gas stream or the second gas stream or both gas streams to include carbon dioxide, either by operating at less than full conversion of CO2 or by sweeping one or both gas streams with a gas containing CO2 or by at some stage between the electrolysis cell and the oxidative carbonylation reactor diluting one or both gas streams with a gas containing CO2; all while maintaining an overall molar ratio of carbon monoxide to oxygen of about 1:0.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: March 1, 2016
    Assignee: Haldor Topsoe A/S
    Inventors: Niels Christian Schjødt, John Bøgild Hansen, Claus Friis Pedersen