INTEGRATION OF A SMALL SCALE LIQUEFACTION UNIT WITH AN LNG PLANT TO CONVERT END FLASH GAS AND BOIL-OFF GAS TO INCREMENTAL LNG.
    2.
    发明申请
    INTEGRATION OF A SMALL SCALE LIQUEFACTION UNIT WITH AN LNG PLANT TO CONVERT END FLASH GAS AND BOIL-OFF GAS TO INCREMENTAL LNG. 有权
    将小型液化单元与LNG设备整合,以将终端气体和燃料气体转换为增量LNG。

    公开(公告)号:US20150143843A1

    公开(公告)日:2015-05-28

    申请号:US14089329

    申请日:2013-11-25

    IPC分类号: F25J1/00

    摘要: Disclosed is a method of retrofitting a full-scale LNG plant to enhance the LNG production capacity of the LNG plant and a method for operating such a retrofit plant. A small scale LNG plant having a capacity less than 2 MTPA can be integrated with a main LNG plant having a capacity of at least 4 MTPA such that end flash gas and boil off gas from the main LNG plant can be liquefied by the small scale LNG plant as incremental LNG. It has been found that the production capacity of the integrated system can be improved by increasing the temperature of the gas stream exiting the main cryogenic heat exchanger of the main LNG plant between 5° C. and 30° C. as compared with the design temperature.

    摘要翻译: 公开了一种改造全规模LNG装置以提高LNG装置的液化天然气生产能力的方法,以及用于操作这种改造装置的方法。 容量小于2 MTPA的小型液化天然气工厂可以与容量至少为4 MTPA的主要液化天然气工厂集成在一起,从而能够通过小规模LNG液化来自主液化天然气厂的终端闪蒸气体和蒸发气体 作为增量LNG生产。 已经发现,与设计温度相比,通过提高离开主LNG设备的主低温热交换器的气流的温度在5℃和30℃之间可以提高整合系统的生产能力 。