Patents by Inventor Thomas Sandahl Christensen

Thomas Sandahl Christensen 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: 20240124786
    Abstract: Process and plant for producing a hydrocarbon product boiling in the gasoline boiling range, comprising: upgrading a naphtha containing stream derived from Fischer-Tropsch (FT) synthesis by passing the naphtha containing stream through an aromatization stage comprising contacting the naphtha containing stream with an aluminosilicate zeolite, thereby producing said hydrocarbon product boiling in the gasoline boiling range, and a separate light hydrocarbon gas stream, such as liquid petroleum gas (LPG) stream. The synthesis gas for the FT-synthesis is produced by electrically heated reverse water gas shift (e-RWGS) of a feedstock comprising CO2 and H2.
    Type: Application
    Filed: February 9, 2022
    Publication date: April 18, 2024
    Applicant: TOPSOE A/S
    Inventors: Ole Frej ALKILDE, Angelica HIDALGO VIVAS, Kim AASBERG-PETERSEN, Peter Mølgaard MORTENSEN, Thomas Sandahl CHRISTENSEN
  • Publication number: 20230356177
    Abstract: A plant, such as a hydrocarbon plant, is provided, which has a syngas stage (A) for syngas generation and a synthesis stage (B) where said syngas is synthesized to produce syngas derived product, such as hydrocarbon product. The syngas stage (A) primarily includes electrically heated reverse water gas shift (e-RWGS) section. Additionally, an electrically-heated steam methane reforming (e-SMR) section (II) can be arranged in parallel to the e-RWGS section (I). The plant makes effective use of various streams; in particular CO2 and H2. A method for producing a product stream, such as a hydrocarbon product stream is also provided.
    Type: Application
    Filed: October 13, 2021
    Publication date: November 9, 2023
    Inventors: Sudip DE SARKAR, Kim AASBERG-PETERSEN, Thomas Sandahl CHRISTENSEN, Peter Mølgaard MORTENSEN
  • Publication number: 20230339747
    Abstract: A syngas stage, for use in a chemical plant, is provided, which includes a methanation section and an autothermal reforming section. The syngas stage makes effective utilization of CO2 rich stream and H2 rich stream. The syngas stage may include an external feed of hydrocarbons. A method for producing a syngas stream is also provided.
    Type: Application
    Filed: October 12, 2021
    Publication date: October 26, 2023
    Applicant: TOPSOE A/S
    Inventors: Kim AASBERG-PETERSEN, Thomas Sandahl CHRISTENSEN, Sudip DE SARKAR
  • Patent number: 11795118
    Abstract: A refractory lining in a combustion chamber operating in a reducing atmosphere. The lining includes at least one or more Zirconia (Zr)-based refractory lining members comprising one or more Zr-based parts. The Zr-based parts comprise at least 90 wt. %, preferably at least 95 wt. %, of monoclinic ZrO2 and/or partially stabilized ZrO2 and/or fully stabilized ZrO2, wherein the total content of tetragonal and cubic ZrO2 amounts to at least 20 wt. %, preferably more than 35 wt. %, as well as Zr based refractory lining members and methods for manufacturing the Zr based refractory lining members.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: October 24, 2023
    Assignees: Topsoe A/S, P-D Refractories GmbH
    Inventors: Johannes Ruben Larsen, Fred Brunk, Thomas Sandahl Christensen, Søren Gyde Thomsen
  • Publication number: 20230249968
    Abstract: Method and plant for producing a synthesis gas for use in the production of a hydrocarbon product, particularly a synthetic fuel, comprising: providing a hydrocarbon feed gas, providing a first oxygen rich stream by passing air through an air separation unit (ASU), carrying out autothermal reforming of said hydrocarbon feed gas in an autothermal reforming (ATR) unit, said autothermal reforming including using at least a portion of said first oxygen containing stream, providing at least part of said synthesis gas to a synthetic fuel synthesis unit for converting said synthesis gas into said hydrocarbon product and producing a tail gas, recycling part or the entirety of said tail gas to upstream said ATR, providing a first hydrogen rich stream and a second oxygen rich stream, and adding at least a portion of said first hydrogen rich stream to said synthesis gas prior to entering said synthetic fuel synthesis unit.
    Type: Application
    Filed: August 11, 2021
    Publication date: August 10, 2023
    Applicant: TOPSOE A/S
    Inventors: Kim AASBERG-PETERSEN, Thomas Sandahl CHRISTENSEN
  • Patent number: 11713282
    Abstract: A method for producing a refractory lining in a combustion chamber operating in a reducing atmosphere. The lining includes at least one or more Zirconia (Zr)-based refractory lining members comprising one or more Zr-based parts. The Zr-based parts comprise at least 90 wt. %, preferably at least 95 wt. %, of monoclinic ZrO2 and/or partially stabilized ZrO2 and/or fully stabilized ZrO2, wherein the total content of tetragonal and cubic ZrO2 amounts to at least 20 wt. %, preferably more than 35 wt. %, as well as Zr based refractory lining members and methods for manufacturing the Zr based refractory lining members.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: August 1, 2023
    Assignees: Topsoe A/S, P-D Refractories GmbH
    Inventors: Johannes Ruben Larsen, Fred Brunk, Thomas Sandahl Christensen, Søren Gyde Thomsen
  • Publication number: 20230234842
    Abstract: A plant, such as a hydrocarbon plant, is provided, which has a syngas stage for syngas generation and a synthesis stage where the syngas is synthesized to produce syngas derived product, such as hydrocarbon product. The plant makes effective use of various streams; in particular CO2 and H2. The plant does not comprise an external feed of hydrocarbons. A method for producing a product stream, such as a hydrocarbon product stream is also provided.
    Type: Application
    Filed: March 27, 2023
    Publication date: July 27, 2023
    Applicant: HALDOR TOPSØE A/S
    Inventors: Sudip DE SARKAR, Thomas Sandahl CHRISTENSEN, Martin ØSTBERG, Kim AASBERG-PETERSEN
  • Publication number: 20230227373
    Abstract: A refractory lining in a combustion chamber operating in a reducing atmosphere. The lining includes at least one or more Zirconia (Zr)-based refractory lining members comprising one or more Zr-based parts. The Zr-based parts comprise at least 90 wt. %, preferably at least 95 wt. %, of monoclinic ZrO2 and/or partially stabilized ZrO2 and/or fully stabilized ZrO2, wherein the total content of tetragonal and cubic ZrO2 amounts to at least 20 wt. %, preferably more than 35 wt. %, as well as Zr based refractory lining members and methods for manufacturing the Zr based refractory lining members.
    Type: Application
    Filed: March 27, 2023
    Publication date: July 20, 2023
    Inventors: Johannes Ruben Larsen, Fred Brunk, Thomas Sandahl Christensen, Søren Gyde Thomsen
  • Publication number: 20220169503
    Abstract: A reactor vessel for high temperature catalytic reactions is provided, in which the inlet portion has a particular design. A plant comprising this reactor vessel is also provided.
    Type: Application
    Filed: April 15, 2020
    Publication date: June 2, 2022
    Applicant: HALDOR TOPSØE A/S
    Inventors: Peter Mølgaard MORTENSEN, Michael BOE, Louise Jivan SHAH, Thomas Sandahl CHRISTENSEN
  • Publication number: 20220081289
    Abstract: A plant, such as a hydrocarbon plant, is provided, which consists of a syngas stage for syngas generation and a synthesis stage where said syngas is synthesized to produce syngas derived product, such as hydrocarbon product. The plant makes effective use of various streams; in particular CO2 and H2. The plant does not comprise an external feed of hydrocarbons. A method for producing a product stream, such as a hydrocarbon product stream is also provided.
    Type: Application
    Filed: April 7, 2020
    Publication date: March 17, 2022
    Applicant: HALDOR TOPSØE A/S
    Inventors: Sudip DE SARKAR, Thomas Sandahl CHRISTENSEN, Martin ØSTBERG, Kim AASBERG-PETERSEN
  • Publication number: 20220081292
    Abstract: A plant, such as a hydrocarbon plant, is provided, which consists of a syngas stage for syngas generation and a synthesis stage where said syngas is synthesized to produce syngas derived product, such as hydrocarbon product. The plant makes effective use of various streams; in particular CO2 and H2. A method for producing a product stream, such as a hydrocarbon product stream is also provided.
    Type: Application
    Filed: April 3, 2020
    Publication date: March 17, 2022
    Applicant: HALDOR TOPSØE A/S
    Inventors: Sudip DE SARKAR, Martin ØSTBERG, Thomas Sandahl CHRISTENSEN, Kim AASBERG-PETERSEN
  • Publication number: 20210188722
    Abstract: A refractory lining in a combustion chamber operating in a reducing atmosphere. The lining includes at least one or more Zirconia (Zr)-based refractory lining members comprising one or more Zr-based parts. The Zr-based parts comprise at least 90 wt. %, preferably at least 95 wt. %, of monoclinic ZrO2 and/or partially stabilized ZrO2 and/or fully stabilized ZrO2, wherein the total content of tetragonal and cubic ZrO2 amounts to at least 20 wt. %, preferably more than 35 wt. %, as well as Zr based refractory lining members and methods for manufacturing the Zr based refractory lining members.
    Type: Application
    Filed: February 11, 2021
    Publication date: June 24, 2021
    Inventors: Johannes Ruben Larsen, Fred Brunk, Thoma Sandahl Christensen, Søren Gyde Thomsen
  • Publication number: 20210163369
    Abstract: A method for producing a refractory lining in a combustion chamber operating in a reducing atmosphere. The lining includes at least one or more Zirconia (Zr)-based refractory lining members comprising one or more Zr-based parts. The Zr-based parts comprise at least 90 wt. %, preferably at least 95 wt. %, of monoclinic ZrO2 and/or partially stabilized ZrO2 and/or fully stabilized ZrO2, wherein the total content of tetragonal and cubic ZrO2 amounts to at least 20 wt. %, preferably more than 35 wt. %, as well as Zr based refractory lining members and methods for manufacturing the Zr based refractory lining members.
    Type: Application
    Filed: February 11, 2021
    Publication date: June 3, 2021
    Inventors: Johannes Ruben Larsen, Fred Brunk, Thomas Sandahl Christensen, Søren Gyde Thomsen
  • Patent number: 10661241
    Abstract: The invention relates to a chemical reactor comprising at least one catalyst support system and anti-blocking means arranged around and above a reactor opening, which prevents catalyst or other reactor parts to enter or exit a reactor opening.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: May 26, 2020
    Assignee: Haldor Topsoe A/S
    Inventors: Anders Helbo Hansen, Thomas Sandahl Christensen, Magnus Møller Jørgensen, Johannes Ruben Larsen
  • Publication number: 20190218151
    Abstract: The present application relates to a refractory lining in a combustion chamber operating in a reducing atmosphere, said lining comprising at least one or more Zirconia (Zr)-based refractory lining members comprising one or more Zr-based parts, wherein the Zr-based parts comprises at least 90 wt. %, preferably at least 95 wt. %, of monoclinic ZrO>2 and/or partially stabilized ZrO>2 and/or fully stabilized ZrO>2, wherein the total content of tetragonal and cubic ZrO>2 amounts to at least 20 wt. %, preferably more than 35 wt. % as well as Zr based refractory lining members and methods for manufacturing said Zr based refractory lining members.
    Type: Application
    Filed: October 9, 2017
    Publication date: July 18, 2019
    Applicants: Haldor Topsøe A/S, P-D Refractories GmbH
    Inventors: Johannes Ruben Larsen, Fred Brunk, Thomas Sandahl Christensen, Søren Gyde Thomsen
  • Patent number: 10196572
    Abstract: A process and plant for conversion of a feed hydrocarbon stream to liquid hydrocarbon products in a small scale GTL plant, comprising the use of a cryogenic air separation unit (ASU), optionally together with vacuum pressure swing adsorption (VPSA), an autothermal reformer (ATR) or catalytic partial oxidation (CPO), and pressure swing adsorption (PSA) unit to produce a synthesis gas for downstream Fischer-Tropsch (FT) synthesis for production of liquid hydrocarbons.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: February 5, 2019
    Assignee: Haldor Topsoe A/S
    Inventor: Thomas Sandahl Christensen
  • Patent number: 10106405
    Abstract: The present invention relates to a process for heating an ATR or POX comprising the steps of heating a process stream by at least one heating means, admitting the heated process stream to an ATR or POX reactor through a main burner, and heating the ATR or POX reactor to or above autoignition temperature of the process stream via the heated process stream.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: October 23, 2018
    Assignee: Haldor Topsoe A/S
    Inventors: Per Juul Dahl, Thomas Sandahl Christensen
  • Patent number: 9890041
    Abstract: Process for the production of synthesis gas from hydrocarbon feed containing higher hydrocarbons comprising bypassing a portion of the hydrocarbon feed around a first pre-reforming stage and passing the pre-reformed and bypassed portions through at least a second pre-reforming stage.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: February 13, 2018
    Assignee: Haldor Topsoe A/S
    Inventors: Thomas Sandahl Christensen, Pia Elholm
  • Patent number: 9752080
    Abstract: The invention relates to a process for the production of liquid hydrocarbons by the use of light-end fractions from downstream synthesis in the reforming section of the plant.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: September 5, 2017
    Assignee: Haldor Topsoe A/S
    Inventors: Thomas Sandahl Christensen, Ole Frej Alkilde
  • Publication number: 20170247620
    Abstract: A process and plant for conversion of a feed hydrocarbon stream to liquid hydrocarbon products in a small scale GTL plant, comprising the use of a cryogenic air separation unit (ASU), optionally together with vacuum pressure swing adsorption (VPSA), an autothermal reformer (ATR) or catalytic partial oxidation (CPO), and pressure swing adsorption (PSA) unit to produce a synthesis gas for downstream Fischer-Tropsch (FT) synthesis for production of liquid hydrocarbons.
    Type: Application
    Filed: May 17, 2017
    Publication date: August 31, 2017
    Inventor: Thomas Sandahl Christensen