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    • 7. 发明授权
    • Process for recovery of carbon dioxide from a fluid stream, in particular from syngas
    • US08758483B2
    • 2014-06-24
    • US13322125
    • 2010-05-25
    • Torsten KatzGeorg SiederKoji Tanaka
    • Torsten KatzGeorg SiederKoji Tanaka
    • B01D53/14
    • A process for removing carbon dioxide from a fluid comprises the steps of: (a) treating the fluid by bringing it into countercurrent contact with a liquid absorbent in a first absorption zone and thereafter in a second absorption zone to absorb at least part of the carbon dioxide contained in the fluid into the absorbent; (b) depressurizing the loaded absorbent to release a first stream of carbon dioxide and yield a partially regenerated absorbent; (c) recycling a first stream of the partially regenerated absorbent into the first absorption zone; (d) heating a second stream of the partially regenerated absorbent to release a second stream of carbon dioxide and yield a regenerated absorbent; (e) recycling the regenerated absorbent into the second absorption zone; (f) condensing water vapor entrained in the second stream of carbon dioxide by cooling the second stream of carbon dioxide and transferring at least part of the heat recovered to the partially regenerated absorbent by indirect heat exchange. The invention provides a two-stage carbon dioxide recovery process wherein the overall energy required for carbon dioxide recovery is reduced and/or wherein at least part of the carbon dioxide is recovered at a pressure higher than atmospheric pressure so as to reduce the energy required for compression of the carbon dioxide, e.g., for sequestration. Also disclosed is a plant for removing carbon dioxide from a fluid.
    • 8. 发明授权
    • Process for recovery of carbon dioxide from a fluid stream, in particular from syngas
    • 从流体流,特别是合成气回收二氧化碳的方法
    • US08795415B2
    • 2014-08-05
    • US13322125
    • 2010-05-25
    • Torsten KatzGeorg SiederKoji Tanaka
    • Torsten KatzGeorg SiederKoji Tanaka
    • B01D53/14
    • C10K1/08Y02C10/06Y02E20/16Y02E20/18Y02E20/185
    • A process for removing carbon dioxide from a fluid comprises the steps of: (a) treating the fluid by bringing it into countercurrent contact with a liquid absorbent in a first absorption zone and thereafter in a second absorption zone to absorb at least part of the carbon dioxide contained in the fluid into the absorbent; (b) depressurizing the loaded absorbent to release a first stream of carbon dioxide and yield a partially regenerated absorbent; (c) recycling a first stream of the partially regenerated absorbent into the first absorption zone; (d) heating a second stream of the partially regenerated absorbent to release a second stream of carbon dioxide and yield a regenerated absorbent; (e) recycling the regenerated absorbent into the second absorption zone; (f) condensing water vapor entrained in the second stream of carbon dioxide by cooling the second stream of carbon dioxide and transferring at least part of the heat recovered to the partially regenerated absorbent by indirect heat exchange. The invention provides a two-stage carbon dioxide recovery process wherein the overall energy required for carbon dioxide recovery is reduced and/or wherein at least part of the carbon dioxide is recovered at a pressure higher than atmospheric pressure so as to reduce the energy required for compression of the carbon dioxide, e.g., for sequestration. Also disclosed is a plant for removing carbon dioxide from a fluid.
    • 从流体中除去二氧化碳的方法包括以下步骤:(a)通过使流体与第一吸收区中的液体吸收剂逆流接触,然后在第二吸收区中以吸收至少部分碳 包含在流体中的二氧化碳变成吸收剂; (b)减压负载的吸收剂以释放第一流二氧化碳并产生部分再生的吸收剂; (c)将部分再生的吸收剂的第一流再循环到第一吸收区中; (d)加热部分再生的吸收剂的第二料流以释放第二二氧化碳流并产生再生的吸收剂; (e)将再生的吸收剂再循环到第二吸收区; (f)通过冷却第二二氧化碳流将夹带在第二二氧化碳流中的水蒸汽冷凝,并通过间接热交换将至少部分回收的热量转移到部分再生的吸收剂中。 本发明提供二阶段二氧化碳回收方法,其中减少二氧化碳回收所需的总能量和/或其中至少部分二氧化碳在高于大气压的压力下回收,以便减少二氧化碳回收所需的能量 压缩二氧化碳,例如用于封存。 还公开了一种用于从流体中除去二氧化碳的设备。
    • 9. 发明申请
    • PROCESS FOR RECOVERY OF CARBON DIOXIDE FROM A FLUID STREAM, IN PARTICULAR FROM SYNGAS
    • 从流体流中回收二氧化碳的方法,特别是从SYNGAS
    • US20120067059A1
    • 2012-03-22
    • US13322125
    • 2010-05-25
    • Torsten KatzGeorg SiederKoji Tanaka
    • Torsten KatzGeorg SiederKoji Tanaka
    • F02C6/18C01B3/22C01C1/04B01D53/14
    • C10K1/08Y02C10/06Y02E20/16Y02E20/18Y02E20/185
    • A process for removing carbon dioxide from a fluid comprises the steps of: (a) treating the fluid by bringing it into countercurrent contact with a liquid absorbent in a first absorption zone and thereafter in a second absorption zone to absorb at least part of the carbon dioxide contained in the fluid into the absorbent; (b) depressurizing the loaded absorbent to release a first stream of carbon dioxide and yield a partially regenerated absorbent; (c) recycling a first stream of the partially regenerated absorbent into the first absorption zone; (d) heating a second stream of the partially regenerated absorbent to release a second stream of carbon dioxide and yield a regenerated absorbent; (e) recycling the regenerated absorbent into the second absorption zone; (f) condensing water vapour entrained in the second stream of carbon dioxide by cooling the second stream of carbon dioxide and transferring at least part of the heat recovered to the partially regenerated absorbent by indirect heat exchange. The invention provides a two-stage carbon dioxide recovery process wherein the overall energy required for carbon dioxide recovery is reduced and/or wherein at least part of the carbon dioxide is recovered at a pressure higher than atmospheric pressure so as to reduce the energy required for compression of the carbon dioxide, e.g., for sequestration. Also disclosed is a plant for removing carbon dioxide from a fluid.
    • 从流体中除去二氧化碳的方法包括以下步骤:(a)通过使流体与第一吸收区中的液体吸收剂逆流接触,然后在第二吸收区中以吸收至少部分碳 包含在流体中的二氧化碳变成吸收剂; (b)减压负载的吸收剂以释放第一流二氧化碳并产生部分再生的吸收剂; (c)将部分再生的吸收剂的第一流再循环到第一吸收区中; (d)加热部分再生的吸收剂的第二料流以释放第二二氧化碳流并产生再生的吸收剂; (e)将再生的吸收剂再循环到第二吸收区; (f)通过冷却第二二氧化碳流将夹带在第二二氧化碳流中的水蒸汽冷凝,并通过间接热交换将至少部分回收的热量转移到部分再生的吸收剂中。 本发明提供二阶段二氧化碳回收方法,其中减少二氧化碳回收所需的总能量和/或其中至少部分二氧化碳在高于大气压的压力下回收,以便减少二氧化碳回收所需的能量 压缩二氧化碳,例如用于封存。 还公开了一种用于从流体中除去二氧化碳的设备。