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公开(公告)号：US11505461B2
公开(公告)日：2022-11-22
申请号：US16609019
申请日：2018-05-03
Applicant: HALDOR TOPSØE A/S
Abstract: In a process for steam reforming of oxygenates, especially at low steam-to-carbon (S/C) ratios, a feed gas containing oxygenates, such as ethanol, is converted into syngas over a ternary carbide catalyst. Then the reformed gas is either transformed into desired chemicals or mixed into the feed stream to the reformer in a plant, such as an ammonia or methanol plant. The preferred ternary carbide is nickel zinc carbide.
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122.发明授权公开(公告)号：US11498835B2
公开(公告)日：2022-11-15
申请号：US16071313
申请日：2017-02-28
Applicant: HALDOR TOPSØE A/S
Inventor： Annette E. Krøll Jensen , Christian Henrik Speth , Thomas Rostrup-Nielsen , Niels Christian Schjødt
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.
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123.发明申请公开(公告)号：US20220298663A1
公开(公告)日：2022-09-22
申请号：US17616756
申请日：2020-07-13
Applicant: HALDOR TOPSØE A/S
Inventor： Tobias Holt NØRBY , Rainer KÜNGAS , Bengt Peter Gustav BLENNOW , Jeppe RASS-HANSEN , Thomas HEIREDAL-CLAUSEN
IPC: C25D3/04 , C25D5/36 , C25D7/06 , C25D5/50 , H01M8/0228
Abstract: In a method for chromium upgrading of interconnects made of ferritic steel to be used in solid oxide cell stacks, comprising the steps of shaping the interconnect, depositing a coating comprising Cr on at least one surface of the shaped interconnect and performing one or more thermal treatments at a temperature below 1000° C., the resulting Cr concentration near the surface of the interconnect is higher than the Cr concentration in the ferritic steel before shaping. Specifically, the average Cr concentration of the shaped interconnect is increased to 26 wt % Cr or higher.
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公开(公告)号：US11447389B2
公开(公告)日：2022-09-20
申请号：US16753501
申请日：2018-11-15
Applicant: HALDOR TOPSØE A/S
Inventor： Peter Mølgaard Mortensen , Kim Aasberg-Petersen
Abstract: A system for production of a synthesis gas, including: a synthesis gas generation reactor arranged for producing a first synthesis gas from a hydrocarbon feed stream; a post converter including a catalyst active for catalyzing steam methane reforming, methanation and reverse water gas shift reactions; the post converter including a conduit for supplying a CO2 rich gas stream into a mixing zone of the post converter, where the CO2 rich gas stream in the conduit upstream the mixing zone is in heat exchange relationship with gas flowing over the catalyst downstream the mixing zone; a pipe combining the at least part of the first synthesis gas and the CO2 rich gas stream to a mixed gas, in a mixing zone being upstream the catalyst; wherein the post converter further includes an outlet for outletting a product synthesis gas from the post converter. Also, a corresponding process.
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公开(公告)号：US20220227625A1
公开(公告)日：2022-07-21
申请号：US17606642
申请日：2020-04-29
Applicant: HALDOR TOPSØE A/S
Inventor： Morten THELLEFSEN , Mads LYKKE
IPC: C01B17/775 , C01B17/04 , C01B17/80 , B01J19/24 , B01J19/00
Abstract: A process for production of elemental sulfur from a feedstock gas including from 15% to 100 vol % H2S and a stream of sulfuric acid, the process including: a) providing a Claus reaction furnace feed stream substoichiometric oxygen with respect to the Claus reaction, b) directing to a reaction furnace zone operating at elevated temperature such as above 900° C., c) directing to a sulfuric acid evaporation zone downstream said reaction furnace zone, d) cooling to provide a cooled Claus converter feed gas, e) directing to contact a material catalytically active in the Claus reaction, f) withdrawing a Claus tail gas and elemental sulfur, g) directing to a Claus tail gas treatment plant, with the associated benefit of a process involving injection of sulfuric acid in a sulfuric acid evaporation zone allowing high temperature combustion of said feedstock gas, including impurities, without cooling from evaporation and decomposition of sulfuric acid.
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Patent Agency Ranking
公开(公告)号：US20220212928A1
公开(公告)日：2022-07-07
申请号：US17613208
申请日：2020-06-22
Applicant: HALDOR TOPSØE A/S
Inventor： Martin ØSTBERG , Kim AASBERG-PETERSEN
Abstract: A steam reformer is provided which comprises at least one externally-heated tube. Each tube comprises a first catalyst bed comprising a first catalyst in particulate form and a second catalyst supported on a structure, wherein said first catalyst bed is located between the inlet of the tube and the second catalyst supported on said structure. A process for steam reforming of a feed gas mixture using said steam reformer is also provided.
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公开(公告)号：US11370750B2
公开(公告)日：2022-06-28
申请号：US16965421
申请日：2019-05-13
Applicant: Haldor Topsøe A/S
Inventor： Amanda Birgitte Sølvhøj , Esben Taarning
IPC: C07C319/20 , C07C319/18
Abstract: The following invention regards a process of demethylating a methyl ester of methionine or its hydroxy analog and producing methane thiol as a side-product. The methionine and its hydroxy analog are suitable as an animal feed additive and as a food additive. The methane thiol may be consumed in a hydrothiolation step such as in a step of preparing the methyl ester of methionine or its hydroxy analog from methyl vinyl glycolate.
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公开(公告)号：US11370658B2
公开(公告)日：2022-06-28
申请号：US16622068
申请日：2018-07-11
Applicant: Haldor Topsøe A/S
Inventor： Pat A. Han , Annette E. Krøll Jensen
Abstract: Method for the preparation of ammonia synthesis gas by a combination of ATR or secondary reforming process using oxygen from an air separation unit and electrolysis of water for the production of ammonia synthesis gas.
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公开(公告)号：US11306048B2
公开(公告)日：2022-04-19
申请号：US17055284
申请日：2019-06-11
Applicant: HALDOR TOPSØE A/S
Inventor： Søren Grønborg Eskesen , Per Juul Dahl , Emil Andreas Tjärnehov , Max Thorhauge
IPC: C07C29/154 , B01J19/00 , B01J23/80 , C07C29/152
Abstract: 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.
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公开(公告)号：US11286159B2
公开(公告)日：2022-03-29
申请号：US16620150
申请日：2018-06-28
Applicant: HALDOR TOPSØE A/S
Abstract: In a process for the production of ammonia synthesis gas from a hydrocarbon-containing feedstock, comprising steam reforming of the feedstock and treatment of the synthesis gas obtained, the shift of the synthesis gas comprises two shift steps, both including stable catalysts, whereby the formation of hazardous by-products is avoided or at least reduced to an acceptable low level. The two shift steps can both be HTS, or they can be one HTS and one LTS or one HTS and one MTS. The catalyst used in the HTS and the LTS steps is based on zinc oxide and zinc aluminum spinel, and the catalyst used in the MTS and the LTS steps can be based on copper.
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