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    CONFIGURATIONS AND METHODS FOR SMALL SCALE LNG PRODUCTION
    26.
    发明申请
    CONFIGURATIONS AND METHODS FOR SMALL SCALE LNG PRODUCTION 有权

    公开(公告)号：US20210341221A1

    公开(公告)日：2021-11-04

    申请号：US17373249

    申请日：2021-07-12

    Applicant: Fluor Technologies Corporation

    Inventor： John Mak

    IPC: F25J1/00 ,  F25J5/00 ,  F25J1/02

    Abstract: An LNG plant comprises a cold box and a refrigeration unit fluidly coupled with a plurality of heat exchanger passes in the cold box. The refrigeration unit is configured to provide a first refrigerant stream to a first heat exchanger pass of the plurality of heat exchanger passes at a first pressure, a second refrigerant stream to a second heat exchanger pass at a second pressure, and a third refrigerant stream to a third heat exchanger pass at a third pressure. The second refrigerant stream comprises a first portion of the first refrigerant stream, and the third refrigerant stream comprises a second portion of the first refrigerant stream. The second pressure and the third pressure are both below the first pressure. The cold box is configured to produce LNG from a natural gas feed stream to the cold box using a refrigeration content from the refrigeration unit.

    Heavy hydrocarbon removal from lean gas to LNG liquefaction
    27.
    发明授权
    Heavy hydrocarbon removal from lean gas to LNG liquefaction 有权

    公开(公告)号：US10989469B2

    公开(公告)日：2021-04-27

    申请号：US15209015

    申请日：2016-07-13

    Applicant: Fluor Technologies Corporation

    Inventor： John Mak ,  Jacob Thomas

    IPC: F25J1/00 ,  C10L3/10 ,  B01D53/14 ,  C10L3/12 ,  B01D53/26 ,  B01D53/64

    Abstract: A system for processing a gas stream can include a physical solvent unit, an acid gas removal unit upstream or downstream of the physical solvent unit, and an LNG liquefaction unit downstream of the acid gas removal unit. The physical solvent unit is configured to receive a feed gas, remove at least a portion of any C5+ hydrocarbons in the feed gas stream using a physical solvent, and produce a cleaned gas stream comprising the feed gas stream with the portion of the C5+ hydrocarbons removed. The acid gas removal unit is configured to receive the cleaned gas stream, remove at least a portion of any acid gases present in the cleaned gas stream, and produce a treated gas stream. The LNG liquefaction unit is configured to receive the treated gas stream and liquefy at least a portion of the hydrocarbons in the treated gas stream.

    LNG BOILOFF GAS RECONDENSATION CONFIGURATIONS AND METHODS
    30.
    发明申请
    LNG BOILOFF GAS RECONDENSATION CONFIGURATIONS AND METHODS 审中-公开

    公开(公告)号：US20180172212A1

    公开(公告)日：2018-06-21

    申请号：US15895317

    申请日：2018-02-13

    Applicant: Fluor Technologies Corporation

    Inventor： John Mak

    IPC: F17C9/02 ,  F25J1/00 ,  F17C9/04

    Abstract: Systems and methods for optimizing the recondensation of boiloff gas in liquid natural gas storage tanks are presented. In especially preferred aspects of the inventive subject matter, BOG from a storage tank is condensed using refrigeration content of a portion of LNG sendout in a direct or indirect manner, and the BOG condensate and LNG sendout portion are combined to form a subcooled stream that is then combined with the balance of the LNG sendout, to be fed to a high pressure pump. Contemplated recondensation operations advantageously occur without using otherwise needed large volume recondensers. Moreover, the condensing and subcooling operations are decoupled from the LNG sendout rate.

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