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    METHOD AND APPARATUS FOR PRODUCING A HYDROGEN FRACTION USING A SEPARATION FEED
    2.
    发明公开
    METHOD AND APPARATUS FOR PRODUCING A HYDROGEN FRACTION USING A SEPARATION FEED 审中-公开

    公开(公告)号：EP4411296A1

    公开(公告)日：2024-08-07

    申请号：EP23020060.2

    申请日：2023-02-02

    申请人： Linde GmbH

    发明人： Pham Duc, Tuat ,  Kurz, Benedikt ,  Höfel, Torben ,  von Trotha, Thilo Frank Theodor

    IPC分类号： F25J3/00

    CPC分类号： C01B3/506 ,  C01B3/501 ,  C01B3/56 ,  F25J3/0219 ,  F25J3/0252 ,  F25J2205/0420130101 ,  F25J2200/7820130101 ,  F25J2270/8820130101 ,  F25J2270/0220130101 ,  F25J2200/7420130101 ,  F25J2205/6420130101 ,  F25J2205/4020130101 ,  F25J3/0238 ,  F25J2270/6020130101 ,  F25J2270/1220130101 ,  F25J2205/8020130101 ,  F25J3/0242 ,  F25J2215/6220130101 ,  F25J3/0233 ,  F25J2205/0220130101 ,  F25J2270/0420130101

    摘要： A method for producing a hydrogen fraction (N) containing at least 60% by volume hydrogen using a separation feed (A) is proposed, wherein the separation feed (A) comprises components of a first component group including methane and hydrogen and components of a second component group including hydrocarbons with two carbon atoms, wherein the separation feed (A) is subjected to a separation using a separation arrangement (100, 200) including a first separation section (110) and a second separation section (120), wherein the first separation section (110) is configured to perform a first partial condensation (E1) and a rectification (T1), wherein a first component mixture (B) and a second component mixture (C) are produced using the first separation section (110), wherein the first component mixture (B) and the second component mixture comprise a higher relative amount of the components of the first component group and a lower relative amount of the components of the second component group than the separation feed (A), and wherein the first component mixture (B) is produced at a first pressure level and the second component mixture (C) is produced at a second pressure level below the first pressure level. The second separation section (120) is configured to perform a compression (CN), a second partial condensation (E3, E4) and a counterstream absorption (T2), wherein the first component mixture (B) or a part thereof is submitted as a first absorption feed stream (D) to the counterstream absorption (T2) at the first pressure level, wherein the second component mixture (C) or a part thereof is used in forming a cyclic stream (E), wherein the cyclic stream (E) is cyclically subjected to the compression (CN) and the second partial condensation (E3, E4), wherein a side stream (F) is withdrawn from the cyclic stream (E) downstream of the second partial condensation (E3, E4), and wherein the side stream (F) or a part thereof is submitted as a second absorption feed stream (G) to the counterstream absorption (T2). Corresponding apparatus is also part of the present invention.