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1. 发明公开

US20230158442A1 METHOD AND ARRANGEMENT FOR SEPARATING CARBON DIOXIDE FROM A FEED STREAM CONTAINING CARBON DIOXIDE 审中-公开
公开(公告)号：US20230158442A1
公开(公告)日：2023-05-25
申请号：US18058529
申请日：2022-11-23
申请人： Linde GmbH
发明人： Werner LEITMAYR , Thomas RIED , Gabriel SALAZAR DUARTE , Patrick SCHIFFMANN
IPC分类号： B01D53/04 , F25J1/00 , B01D53/22
CPC分类号： B01D53/0462 , F25J1/0027 , B01D53/22 , B01D2257/504 , B01D2256/22 , F25J2220/64
摘要： A process is proposed for separating carbon dioxide from a feed stream containing carbon dioxide, in which at least part of the feed stream is subjected to temperature swing adsorption to obtain a first and a second successive stream, wherein, in each case relative to the feed stream, the first subsequent stream is depleted in carbon dioxide and the second subsequent stream is enriched in carbon dioxide, and at least part of the second subsequent stream is subjected to membrane separation to obtain a third and a fourth subsequent stream, the third subsequent stream being depleted in carbon dioxide and the fourth subsequent stream being enriched in carbon dioxide, in each case relative to the second subsequent stream. A corresponding arrangement is also an object of the invention.

2. 发明申请

US20210071091A1 PROCESS AND PLANT FOR PRODUCING LIQUEFIED NATURAL GAS 有权
公开(公告)号：US20210071091A1
公开(公告)日：2021-03-11
申请号：US16772193
申请日：2018-12-03
申请人： Linde GmbH
发明人： Helmut FRITZ , Werner LEITMAYR , Tobias KELLER , Christian VOSS
IPC分类号： C10G5/06 , B01D53/047 , C10L3/10 , C10G5/02 , F25J3/02
摘要： The invention relates to a process (100) for producing liquefied natural gas using a feedstock mixture that contains at least methane, one or more components boiling at a temperature lower than methane and one or more hydrocarbons boiling at a temperature higher than methane, wherein the hydrocarbon(s) boiling at a temperature higher than methane comprise one or more hydrocarbons freezing at a higher temperature, with a freezing point higher than −50° C. According to the invention the feedstock mixture is fed into a pressure swing adsorption process (10), in which a first fraction containing methane and a second fraction containing methane are formed, the first fraction containing methane contains, in addition to the methane, at least the predominant portion of the components of the feedstock mixture that boil more readily than methane and is low in or free from the hydrocarbons boiling less readily than methane, and the second fraction containing methane contains, in addition to the methane, at least the predominant portion of the hydrocarbons from the feedstock that boil less readily than methane and is low in or free from the components that boil more readily than methane, and the first fraction containing methane, or a portion thereof, is supplied for liquefaction (20). The invention also relates to a corresponding plant.

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