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    Systems and methods for LNG production with propane and ethane recovery
    1.
    发明授权
    Systems and methods for LNG production with propane and ethane recovery 有权

    公开(公告)号：US10330382B2

    公开(公告)日：2019-06-25

    申请号：US15158143

    申请日：2016-05-18

    Applicant: Fluor Technologies Corporation

    Inventor： John Mak ,  Jacob Thomas ,  Curt Graham

    IPC: F25J1/02 ,  F25J1/00 ,  F25J3/02

    Abstract: A LNG liquefaction plant includes a propane recovery unit including an inlet for a feed gas, a first outlet for a LPG, and a second outlet for an ethane-rich feed gas, an ethane recovery unit including an inlet coupled to the second outlet for the ethane-rich feed gas, a first outlet for an ethane liquid, and a second outlet for a methane-rich feed gas, and a LNG liquefaction unit including an inlet coupled to the second outlet for the methane-rich feed gas, a refrigerant to cool the methane-rich feed gas, and an outlet for a LNG. The LNG plant may also include a stripper, an absorber, and a separator configured to separate the feed gas into a stripper liquid and an absorber vapor. The stripper liquid can be converted to an overhead stream used as a reflux stream to the absorber.

    Integrated heavy hydrocarbon and BTEX removal in LNG liquefaction for lean gases
    5.
    发明授权
    Integrated heavy hydrocarbon and BTEX removal in LNG liquefaction for lean gases 有权

    公开(公告)号：US12215922B2

    公开(公告)日：2025-02-04

    申请号：US16421138

    申请日：2019-05-23

    Applicant: Fluor Technologies Corporation

    Inventor： John Mak ,  Jacob Thomas ,  Dhirav Patel ,  Curt Graham ,  Irene Zhang

    IPC: F25J3/00 ,  F25J3/02

    Abstract: A method for removing heavy hydrocarbons from a feed gas by: feeding, into an absorber, a top reflux stream and a second reflux stream below the top reflux stream, wherein the absorber produces an absorber bottom product stream and an absorber overhead product stream; depressurizing and feeding the absorber bottom product stream to a stripper to produce a stripper bottom product stream and a stripper overhead product stream; cooling and feeding a portion of the absorber overhead product stream back to the absorber as the top reflux stream; and pressurizing and feeding the stripper overhead product stream back to the absorber as the second reflux stream. Systems for carrying out the method are also provided.

    Systems and methods for LNG production with propane and ethane recovery
    6.
    发明授权
    Systems and methods for LNG production with propane and ethane recovery 有权

    公开(公告)号：US11365933B2

    公开(公告)日：2022-06-21

    申请号：US16390687

    申请日：2019-04-22

    Applicant: Fluor Technologies Corporation

    Inventor： John Mak ,  Jacob Thomas ,  Curt Graham

    IPC: F25J3/02 ,  F25J1/02 ,  F25J1/00

    Abstract: A LNG liquefaction plant includes a propane recovery unit including an inlet for a feed gas, a first outlet for a LPG, and a second outlet for an ethane-rich feed gas, an ethane recovery unit including an inlet coupled to the second outlet for the ethane-rich feed gas, a first outlet for an ethane liquid, and a second outlet for a methane-rich feed gas, and a LNG liquefaction unit including an inlet coupled to the second outlet for the methane-rich feed gas, a refrigerant to cool the methane-rich feed gas, and an outlet for a LNG. The LNG plant may also include a stripper, an absorber, and a separator configured to separate the feed gas into a stripper liquid and an absorber vapor. The stripper liquid can be converted to an overhead stream used as a reflux stream to the absorber.

    Methods and configurations for LNG liquefaction
    7.
    发明授权
    Methods and configurations for LNG liquefaction 有权

    公开(公告)号：US10605522B2

    公开(公告)日：2020-03-31

    申请号：US15693767

    申请日：2017-09-01

    Applicant: Fluor Technologies Corporation

    Inventor： John Mak ,  Jacob Thomas ,  Dhirav Patel ,  Steven Borsos

    IPC: F25J1/02 ,  F25J1/00

    Abstract: Embodiments relate generally to systems and methods for pre-cooling a natural gas stream to a liquefaction plant. A system may comprise a compressor configured to receive a first natural gas stream at a first pressure and produce a second natural gas stream at a second pressure; an exchanger, wherein the exchanger is configured to receive the second natural gas stream as the second pressure and cool the second natural gas stream to produce a cooled natural gas stream; and an expander, wherein the expander is configured to receive the cooled natural gas stream and expand the cooled natural gas stream from the second pressure to a third pressure.

    Heavy hydrocarbon removal from lean gas to LNG liquefaction
    10.
    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.

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