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公开(公告)号：US10549991B2
公开(公告)日：2020-02-04
申请号：US15537248
申请日：2016-02-26
Applicant: HALDOR TOPSØE A/S
Inventor： Christian Wix , Ib Dybkjær , Rasmus Trane-Restrup
Abstract: The present disclosure relates to a process plant and a process for production of a hydrogen rich gas, comprising the steps of (a) directing an amount of a synthesis gas comprising at least 15%, 50% or 80% on dry basis of CO and H2 in combination, a gas comprising steam, and a recycled intermediate product gas to be combined into a first reactor feed gas, (b) directing said first reactor feed gas to contact a first material catalytically active in water gas shift reaction, producing an intermediate product gas, (c) splitting said intermediate product gas in the recycled intermediate product gas and a remaining intermediate product gas, (d) combining said remaining intermediate product gas with a further amount of synthesis gas forming a second reactor feed gas, (e) directing said second reactor feed gas to contact a second material catalytically active in the water gas shift reaction, producing a product gas, characterized in the H2O:CO ratio in said first reactor feed gas being from 0.5 to 2.0 and the H2O:CO ratio in said second reactor feed gas being from 0.5 to 2.0. with the associated benefit of distributing the heat development and thus reducing the maximum temperature in the reactors by limiting the extent of reaction of the reacting mixture, and thereby reducing the amount of steam required for limiting methanation.
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公开(公告)号：US20190126201A1
公开(公告)日：2019-05-02
申请号：US16093998
申请日：2017-05-03
Applicant: Haldor Topsøe A/S
Abstract: Oxygen is removed from a gas feed such as a landfill gas, a digester gas or an industrial CO2 off-gas by removing sulfur-containing compounds and siloxanes from the feed gas, heating the feed gas, injecting one or more reactants for oxygen conversion into the heated feed gas, carrying out a selective catalytic oxygen conversion in at least onesuitable reactor and cleaning the resulting oxygen-depleted gas. The reactants to be injected comprise one or more of H2, CO, ammonia, urea, methanol, ethanol and dimethylether (DME).
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公开(公告)号：US10933372B2
公开(公告)日：2021-03-02
申请号：US16473436
申请日：2018-02-07
Applicant: Haldor Topsøe A/S
Inventor： Kresten Egeblad , Niklas Bengt Jakobsson , Rasmus Trane-Restrup , Jacob Hjerrild Zeuthen , Troels Dahlgaard Stummann
Abstract: Oxygen is removed from a gas feed such as a landfill gas, a digester gas or an industrial CO2 off-gas by heating the feed gas, optionally removing siloxanes and silanols from the heated feed gas, optionally removing part of the sulfur-containing compounds in the heated feed gas, injecting one or more reactants for oxygen conversion into the heated feed gas, carrying out a selective catalytic conversion of any or all of the volatile organic compounds (VOCs) present in the gas, including sulfur-containing compounds, chlorine-containing compounds and any of the reactants injected, in at least one suitable reactor, and cleaning the resulting oxygen-depleted gas. The reactants to be injected comprise one or more of H2, CO, ammonia, urea, methanol, ethanol and dimethyl ether (DME).
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Patent Agency Ranking
公开(公告)号：US10722843B2
公开(公告)日：2020-07-28
申请号：US16477934
申请日：2018-01-11
Applicant: HALDOR TOPSØE A/S
Inventor： Hans Qiongxiao Wu , Tommy Bian Xiang , Niklas Bengt Jakobsson , Rasmus Trane-Restrup , Souheil Saadi
Abstract: The present invention relates to a method and a system for catalytic oxidation of a lean H2S stream. More specifically, the invention concerns a novel way of removing sulfur dioxide (SO2) formed by catalytic oxidation of hydrogen sulfide (H2S) with the purpose of removing H2S from a gas. This catalytic oxidation of H2S yields sulfur dioxide (SO2) through the use of known catalysts, so-called SMC catalysts.
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公开(公告)号：US10675585B2
公开(公告)日：2020-06-09
申请号：US16093998
申请日：2017-05-03
Applicant: HALDOR TOPSØE A/S
Abstract: Oxygen is removed from a gas feed such as a landfill gas, a digester gas or an industrial CO2 off-gas by removing sulfur-containing compounds and siloxanes from the feed gas, heating the feed gas, injecting one or more reactants for oxygen conversion into the heated feed gas, carrying out a selective catalytic oxygen conversion in at least onesuitable reactor and cleaning the resulting oxygen-depleted gas. The reactants to be injected comprise one or more of H2, CO, ammonia, urea, methanol, ethanol and dimethylether (DME).
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公开(公告)号：US20200147547A1
公开(公告)日：2020-05-14
申请号：US16473436
申请日：2018-02-07
Applicant: Haldor Topsøe A/S
Inventor： Kresten Egeblad , Niklas Bengt Jakobsson , Rasmus Trane-Restrup , Jacob Hjerrild Zeuthen , Troels Dahlgaard Stummann
Abstract: Oxygen is removed from a gas feed such as a landfill gas, a digester gas or an industrial CO2 off-gas by heating the feed gas, optionally removing siloxanes and silanols from the heated feed gas, optionally removing part of the sulfur-containing compounds in the heated feed gas, injecting one or more reactants for oxygen conversion into the heated feed gas, carrying out a selective catalytic conversion of any or all of the volatile organic compounds (VOCs) present in the gas, including sulfur-containing compounds, chlorine-containing compounds and any of the reactants injected, in at least one suitable reactor, and cleaning the resulting oxygen-depleted gas. The reactants to be injected comprise one or more of H2, CO, ammonia, urea, methanol, ethanol and dimethyl ether (DME).
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公开(公告)号：US10661224B2
公开(公告)日：2020-05-26
申请号：US16092609
申请日：2017-05-10
Applicant: Haldor Topsøe A/S
IPC: B01D53/86 , B01D53/68 , C10L3/10 , B01D53/50 , C12M1/00 , B01D53/04 , B01D53/047 , B01D53/34 , B01D53/78
Abstract: A method for the purification of a raw gas stream by selective catalytic oxidation, in which organic and inorganic sulfur compounds, halogenated and non-halogenated volatile organic compounds are selectively oxidized without substantially oxidizing the lower hydrocarbons and the sulfur containing compounds present in the gas to sulfur trioxide and excess of oxygen is removed by oxidation of lower alcohols, ethers or hydrogen added to the raw gas stream upstream the catalytic oxidation.
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公开(公告)号：US20190126199A1
公开(公告)日：2019-05-02
申请号：US16092609
申请日：2017-05-10
Applicant: Haldor Topsøe A/S
Abstract: A method for the purification of a raw gas stream by selective catalytic oxidation, in which organic and inorganic sulfur compounds, halogenated and non-halogenated volatile organic compounds are selectively oxidized without substantially oxidizing the lower hydrocarbons and the sulfur containing compounds present in the gas to sulfur trioxide and excess of oxygen is removed by oxidation of lower alcohols, ethers or hydrogen added to the raw gas stream upstream the catalytic oxidation.
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