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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：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：US20190201842A1
公开(公告)日：2019-07-04
申请号：US16329000
申请日：2017-10-10
Applicant: Haldor Topsøe A/S
Inventor： Niklas Bengt Jakobsson , Kresten Egeblad
CPC classification number: B01D53/75 , B01D53/02 , B01D53/81 , B01D53/8668 , B01D53/8671 , B01D53/8678 , B01D53/8687 , B01D2253/104 , B01D2253/106 , B01D2253/108 , B01D2253/112 , B01D2255/2065 , B01D2255/207 , B01D2255/20723 , B01D2255/20761 , B01D2255/20769 , B01D2255/20792 , B01D2255/2092 , B01D2255/30 , B01D2255/50 , B01D2257/55 , B01D2257/556 , B01D2258/05 , C10L3/101 , C10L2200/0469 , C12M47/18 , Y02E50/343 , Y02E50/346
Abstract: In a process for the removal of siloxanes from biogas streams, especially a landfill gas stream or a gas stream from anaerobic digesters, the gas stream is first passed through a conventional siloxane removing unit to remove the majority of the siloxanes and subsequently passed over a selected catalyst with polishing effect, thereby removing remaining traces of siloxanes. The catalyst with polishing effect is chosen from i.a. zeolites, porous silica, titania and various metals on alumina or titania.
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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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