Patents by Inventor Emil Andreas Tjärnehov
Emil Andreas Tjärnehov 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).
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METHOD AND SYSTEM FOR RECYCLING OF DISTILLATION ENERGY IN PLANTS WITH CO2 IMPORT FROM CARBON CAPTURE
Publication number: 20240043359Abstract: The present invention refers to a method, system and plant for the reduction of energy consumption, preferably a green methanol plant. The present invention provides for a reduced overall energy consumption of the green plant—re-use of the distillation energy into the stabilizer column and CO2 reboiler in carbon capture unit—and thereby a reduced electrical import for heater/boiler or reduced fuel consumption in steam generation.Type: ApplicationFiled: January 12, 2022Publication date: February 8, 2024Applicant: TOPSOE A/SInventor: Emil Andreas TJÄRNEHOV -
Publication number: 20230109188Abstract: Method for the preparation of synthesis gas combining electrolysis of water, tubular steam reforming and autothermal reforming of a hydrocarbon feed stock in parallel.Type: ApplicationFiled: February 24, 2021Publication date: April 6, 2023Applicant: Topsoe A/SInventors: Emil Andreas Tjärnehov, Pat A. Han
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Publication number: 20230073089Abstract: Sequential and once-through (single pass) process for the co-production of methanol and ammonia and conversion of at least a part of ammonia to urea by reaction of the ammonia with carbon dioxide collected from a primary reformer flue gas together with carbon dioxide separated from reformed gas in a carbon dioxide removal stage.Type: ApplicationFiled: February 24, 2021Publication date: March 9, 2023Applicant: Topsoe A/SInventors: Emil Andreas Tjärnehov, Pat A. Han
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Publication number: 20230058914Abstract: Process and reaction system for the preparation of methanol.Type: ApplicationFiled: February 1, 2021Publication date: February 23, 2023Applicant: Topsoe A/SInventor: Emil Andreas Tjärnehov
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Patent number: 11407702Abstract: A method for producing methanol comprises the steps of passing a feed stream of methanol synthesis pas through a main methanol reactor containing a methanol synthesis catalyst, to form a mixed gas containing methanol, cooling the mixed gas containing methanol, separating methanol from the mixed pas and heating the mixed gas. The stream of heated mixed gas is passed through an additional methanol reactor containing a methanol synthesis catalyst, and the effluent from the additional methanol reactor is mixed with the feed stream of methanol synthesis gas and passed through the main methanol reactor.Type: GrantFiled: July 11, 2019Date of Patent: August 9, 2022Assignee: HALDOR TOPSØE A/SInventors: Emil Andreas Tjärnehov, Per Juul Dahl
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Patent number: 11306048Abstract: A process for the production of methanol from synthesis gas via an equilibrium reaction is conducted in a methanol pre-converter within a certain operational window, said operational window being defined by the area below an approximately linear curve of the partial pressure of carbon monoxide vs. the boiling water temperature for water temperatures between 210 and 270° C. Methanol of different product grades may be obtained by operating in specific areas of the operational window.Type: GrantFiled: June 11, 2019Date of Patent: April 19, 2022Assignee: HALDOR TOPSØE A/SInventors: Søren Grønborg Eskesen, Per Juul Dahl, Emil Andreas Tjärnehov, Max Thorhauge
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Publication number: 20210363079Abstract: Process for the preparation of a methanol product comprising the steps of a) providing a first process stream consisting essentially of carbon dioxide; b) providing a second process stream consisting of hydrogen by electrolyzing water in an electrolysis unit; c) mixing the first and second process in amount to obtain a methanol synthesis gas with a mole ratio of H2 and CO2 of between 2.5 and 3.5; d) catalytic converting the methanol synthesis gas into raw methanol in at least one methanol reactor; e) purifying the raw methanol in a distillation unit; and recovering waste heat generated in the electrolysis unit in step (b) by transferring the waste heat to a circulating heat transfer medium by indirect heat exchange with the waste heat and by indirect heat exchange of the heated heat transfer medium with steam used for the distillation of the raw methanol, wherein the heated transfer medium is compressed upstream the indirect heat exchange with steam.Type: ApplicationFiled: August 28, 2019Publication date: November 25, 2021Applicant: Haldor Topsøe A/SInventors: Emil Andreas Tjärnehov, Lars Storm Pedersen, Michael Hultqvist, Søren Grønborg Eskesen, Louise Wissing Jensen
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Patent number: 11175040Abstract: A method and an apparatus for protection of a combustion unit of a chemical process against over firing, the burner(s) of the combustion unit are limited by a fuel and duty limiter which limits the duty based on process feeds, combustion gas and fuel flows.Type: GrantFiled: February 20, 2017Date of Patent: November 16, 2021Assignee: HALDOR TOPSØE A/SInventors: Emil Andreas Tjärnehov, Anne Krog Jensen, Christian Henrik Speth, Peter Bruun Jensen
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Publication number: 20210269380Abstract: A method for producing methanol comprises the steps of passing a feed stream of methanol synthesis pas through a main methanol reactor containing a methanol synthesis catalyst, to form a mixed gas containing methanol, cooling the mixed gas containing methanol, separating methanol from the mixed pas and heating the mixed gas. The stream of heated mixed gas is passed through an additional methanol reactor containing a methanol synthesis catalyst, and the effluent from the additional methanol reactor is mixed with the feed stream of methanol synthesis gas and passed through the main methanol reactor.Type: ApplicationFiled: July 11, 2019Publication date: September 2, 2021Applicant: HALDOR TOPSØE A/SInventors: Emil Andreas TJÄRNEHOV, Per Juul DAHL
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Publication number: 20210221758Abstract: The deterioration of methanol synthesis catalysts that is caused by iron poisoning of the catalyst is counteracted by using a catalyst containing a maximum of 100 ppmw Fe in the synthesis process. The method is especially useful in a methanol synthesis plant comprising a make-up gas compressor and a synthesis reactor in a methanol loop with a once-through pre-converter installed between the make-up gas compressor and the methanol loop.Type: ApplicationFiled: June 11, 2019Publication date: July 22, 2021Applicant: HALDOR TOPSØE A/SInventors: Søren Grønborg ESKESEN, Per Juul DAHL, Emil Andreas TJÄRNEHOV, Max THORHAUGE
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Publication number: 20210207804Abstract: A method and an apparatus for protection of a combustion unit of a chemical process against over firing, the burner(s) of the combustion unit are limited by a fuel and duty limiter which limits the duty based on process feeds, combustion gas and fuel flows.Type: ApplicationFiled: February 20, 2017Publication date: July 8, 2021Applicant: HALDOR TOPSØE A/SInventors: Emil Andreas Tjärnehov, Anne Krog Jensen, Christian Henrik Speth, Peter Bruun Jensen
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Publication number: 20210188747Abstract: A process for the production of methanol from synthesis gas via an equilibrium reaction is conducted in a methanol preconverter within a certain operational window, said operational window being defined by the area below an approximately linear curve of the partial pressure of carbon monoxide vs. the boiling water temperature for water temperatures between 210 and 270° C. Methanol of different product grades may be obtained by operating in specific areas of the operational window.Type: ApplicationFiled: June 11, 2019Publication date: June 24, 2021Applicant: HALDOR TOPSØE A/SInventors: Søren Grønborg ESKESEN, Per Juul DAHL, Emil Andreas TJÄRNEHOV, Max THORHAUGE
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Patent number: 10589243Abstract: The invention relates to a catalytic reactor suited for exothermal reactions with a radial process fluid flow and process fluid flow guides which ensures an extended fluid flow path and higher flow velocity and thereby enhanced cooling of the catalyst bed in the reactor.Type: GrantFiled: June 30, 2016Date of Patent: March 17, 2020Assignee: Haldor Topsoe A/SInventors: Anders Lindhard Christensen, Emil Andreas Tjärnehov
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Publication number: 20180299120Abstract: The present relates to a method for controlling the inlet temperature Ti to a conversion process, said method comprising the steps of: Providing a feed for a conversion process; In a first temperature control step regulating the temperature of the feed in a waste heat boiler; In a second temperature control step injecting a water stream into the feed downstream the waste heat boiler in an amount and/or at a temperature to obtain the desired inlet temperature into the conversion process.Type: ApplicationFiled: December 7, 2016Publication date: October 18, 2018Applicant: Haldor Topsøe A/SInventors: Christian Henrik Speth, Emil Andreas Tjärnehov
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Publication number: 20180161742Abstract: The invention relates to a catalytic reactor suited for exothermal reactions with a radial process fluid flow and process fluid flow guides which ensures an extended fluid flow path and higher flow velocity and thereby enhanced cooling of the catalyst bed in the reactor.Type: ApplicationFiled: June 30, 2016Publication date: June 14, 2018Applicant: Haldor Topsøe A/SInventors: Anders Lindhard Christensen, Emil Andreas Tjärnehov