CARBON DIOXIDE PURIFICATION APPARATUS
    1.
    发明申请
    CARBON DIOXIDE PURIFICATION APPARATUS 有权
    二氧化碳净化装置

    公开(公告)号:US20100077795A1

    公开(公告)日:2010-04-01

    申请号:US12632297

    申请日:2009-12-07

    IPC分类号: F25J3/00

    摘要: An Apparatus for purifying a feed stream containing carbon dioxide in which the feed stream, after having been compressed and dried, is partly cooled and then used to reboil a stripping column. Thereafter, the feed stream is further cooled and expanded to a lower operational temperature of the stripping column. A carbon dioxide product stream composed of the liquid column bottoms of the stripping column is expanded at one or more pressures to generate refrigeration, then fully vaporized within the main heat exchanger and compressed by a compressor to produce a compressed carbon dioxide product. Refrigeration is recovered in the main heat exchanger from a column overhead stream extracted from the stripping column within the main heat exchanger either directly or indirectly by auxiliary processing in which carbon dioxide is further separated and optionally recycled back to the main compressor used in compressing the feed stream.

    摘要翻译: 用于纯化含有二氧化碳的进料流的装置,其中进料流在被压缩和干燥之后被部分冷却,然后用于再沸汽提塔。 此后,将进料流进一步冷却并膨胀至汽提塔的较低操作温度。 由汽提塔的液柱底部组成的二氧化碳产物流在一个或多个压力下膨胀以产生制冷,然后在主热交换器内完全蒸发并被压缩机压缩以产生压缩的二氧化碳产品。 在主热交换器中,从主热交换器中从汽提塔提取的塔塔顶馏分塔直接或间接地通过辅助处理回收制冷,其中进一步分离二氧化碳并任选地再循环回压缩进料中使用的主压缩机 流。

    Carbon dioxide purification method
    2.
    发明授权
    Carbon dioxide purification method 有权
    二氧化碳净化方法

    公开(公告)号:US07666251B2

    公开(公告)日:2010-02-23

    申请号:US11395143

    申请日:2006-04-03

    IPC分类号: B01D53/02 B01D53/14

    摘要: Method of purifying a feed stream containing carbon dioxide wherein the feed stream after having been compressed and dried is partly cooled and then used to reboil a stripping column. Thereafter, the feed stream is further cooled and expanded to a lower operational temperature of the stripping column. A carbon dioxide product stream composed of the liquid column bottoms of the stripping column is expanded at one or more pressures to generate refrigeration, then fully vaporized within the main heat exchanger and compressed by a compressor to produce a compressed carbon dioxide product. Refrigeration is recovered in the main heat exchanger from a column overhead stream extracted from the stripping column within the main heat exchanger either directly or indirectly by auxiliary processing in which carbon dioxide is further separated and optionally recycled back to the main compressor used in compressing the feed stream.

    摘要翻译: 纯化含有二氧化碳的进料流的方法,其中将经过压缩和干燥后的进料流部分冷却,然后用于重新沸腾汽提塔。 此后,将进料流进一步冷却并膨胀至汽提塔的较低操作温度。 由汽提塔的液柱底部组成的二氧化碳产物流在一个或多个压力下膨胀以产生制冷,然后在主热交换器内完全蒸发并被压缩机压缩以产生压缩的二氧化碳产品。 在主热交换器中,从主热交换器中从汽提塔提取的塔塔顶馏分塔直接或间接地通过辅助处理回收制冷,其中进一步分离二氧化碳并任选地再循环回压缩进料中使用的主压缩机 流。

    Carbon dioxide purification apparatus
    5.
    发明授权
    Carbon dioxide purification apparatus 有权
    二氧化碳净化装置

    公开(公告)号:US08216351B2

    公开(公告)日:2012-07-10

    申请号:US12632297

    申请日:2009-12-07

    IPC分类号: B01D53/14 B01D53/02

    摘要: An Apparatus for purifying a feed stream containing carbon dioxide in which the feed stream, after having been compressed and dried, is partly cooled and then used to reboil a stripping column. Thereafter, the feed stream is further cooled and expanded to a lower operational temperature of the stripping column. A carbon dioxide product stream composed of the liquid column bottoms of the stripping column is expanded at one or more pressures to generate refrigeration, then fully vaporized within the main heat exchanger and compressed by a compressor to produce a compressed carbon dioxide product. Refrigeration is recovered in the main heat exchanger from a column overhead stream extracted from the stripping column within the main heat exchanger either directly or indirectly by auxiliary processing in which carbon dioxide is further separated and optionally recycled back to the main compressor used in compressing the feed stream.

    摘要翻译: 用于纯化含有二氧化碳的进料流的装置,其中进料流在被压缩和干燥之后被部分冷却,然后用于再沸汽提塔。 此后,将进料流进一步冷却并膨胀至汽提塔的较低操作温度。 由汽提塔的液柱底部组成的二氧化碳产物流在一个或多个压力下膨胀以产生制冷,然后在主热交换器内完全蒸发并被压缩机压缩以产生压缩的二氧化碳产品。 在主热交换器中,从主热交换器中从汽提塔提取的塔塔顶馏分塔直接或间接地通过辅助处理回收制冷,其中进一步分离二氧化碳并任选地再循环回压缩进料中使用的主压缩机 流。

    SYSTEM AND METHOD TO PRODUCE LIQUEFIED NATURAL GAS

    公开(公告)号:US20230115492A1

    公开(公告)日:2023-04-13

    申请号:US17717189

    申请日:2022-04-11

    IPC分类号: F25J1/02 F25J1/00

    摘要: A small to mid-scale liquefied natural gas production system and method is provided. The disclosed liquefied natural gas production system employs a nitrogen-based refrigerant, at least one heat exchanger, three turbine/expanders and two or more refrigerant compression stages. The expansion ratio of one turbine/expander is appreciably lower than the expansion ratio of the other turbine/expanders such that the temperature of the exhaust stream from the turbine/expander with the lower expansion ratio is above the critical point temperature of the compressed natural gas feed stream but colder than −15° C.

    SYSTEM AND METHOD TO PRODUCE LIQUEFIED NATURAL GAS

    公开(公告)号:US20230114229A1

    公开(公告)日:2023-04-13

    申请号:US17717182

    申请日:2022-04-11

    IPC分类号: F25J1/00 F25J1/02

    摘要: A small to mid-scale liquefied natural gas production system and method is provided. The disclosed liquefied natural gas production system employs a nitrogen-based refrigerant, at least one heat exchanger, three turbine/expanders and two or more refrigerant compression stages. The expansion ratio of one turbine/expander is appreciably lower than the expansion ratio of the other turbine/expanders such that the temperature of the exhaust stream from the turbine/expander with the lower expansion ratio is above the critical point temperature of the compressed natural gas containing feed stream but colder than -15° C.

    Air separation method
    10.
    发明授权

    公开(公告)号:US10048002B2

    公开(公告)日:2018-08-14

    申请号:US14994708

    申请日:2016-01-13

    IPC分类号: F25J3/04

    摘要: A cryogenic air separation method and apparatus in which first and second liquid streams are produced. The first liquid stream has a higher oxygen content than air and can consist of a higher pressure distillation column bottoms and the second liquid stream, for instance, air, has a lower oxygen content than the first liquid stream and an argon content no less than the air. The second liquid stream is subcooled through indirect heat exchange with the first liquid stream and both of such streams are introduced into the lower pressure column. The second liquid stream is introduced into the lower pressure column above that point at which the crude liquid oxygen column bottoms or any portion thereof is introduced into the lower pressure column to increase a liquid to vapor ratio below the introduction of the second liquid stream and therefore, reduce the oxygen present within the column overhead.