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    LNG-BOG compressor

    Product Description:

    LNG storage facilities contain volatile flash vapor (BOG gas). To fully utilize this gas, it can be pressurized to a certain pressure by a compressor and directly supplied to the city's pipeline network, or pressurized to 25 MPa and transported to CNG stations.

    BOG recovery compressors are classified into four basic types based on normal operating flow rates: 100 Nm³/h (50~150 Nm³/h), 300 Nm³/h (200~400 Nm³/h), 500 Nm³/h (400~700 Nm³/h), and 1000 Nm³/h (800~1500 Nm³/h).

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    Detailed description

    Low-pressure pipeline compressors use Z-type (vertical), single-stage, air-cooled, oil-free reciprocating piston compressors. Medium-pressure pipeline compressors mostly use V-type or D-type, two- to three-stage, air-cooled, oil-free reciprocating piston compressors.

    The high-pressure CNG refueling compressor uses a V-type, W-type, or D-type, four-stage compression compressor (discharge pressure 20.0~25.0MPa), a fully air-cooled, micro-oil reciprocating piston compressor.

    The standard configuration of the compressor skid includes a soundproof protective enclosure, compressor main unit, pre-mounted separator buffer, interstage separator, explosion-proof motor, transmission components, common base, gas circuit system, cooling system, sewage system, operating instrument system, and PLC electrical control system, all integrated on the skid.

    The compressor’s process ports connect to the outside of the base and are equipped with relevant flanges/connectors. Both the base and the enclosure are equipped with lifting devices for easy on-site installation.

    Main technical parameters of LNG-BOG compressor

    NO.

    Model

    Gas

    Flow(Nm³/h)

    Intake pressure(MPaG)

    Discharge pressure (MPaG)

     Remark

    1

    ZW-4/0.5-5

    BOG

    300

    0.05

    0.5

    Oil-free lubrication

    2

    ZW-4.0/(1-5)-6

    BOG

    400-1200

    0.1~0.5

    0.6

    Oil-free lubrication

    3

    ZW-0.32/(2-6)-10

    BOG

    50-110

    0.2~0.6

    1

    Oil-free lubrication

    4

    ZW-0.32/(3-5)-40

    BOG

    60-100

    0.3~0.5

    4

    Oil-free lubrication

    5

    ZW-0.55/6-250

    BOG

    200

    0.6

    25

    Oil-lubricated

    6

    DW-12/2

    BOG

    600

    ATM

    0.2

    Oil-free lubrication

    7

    ZW-6/(2-6)-7

    BOG

    900-2000

    0.2-0.6

    0.7

    Oil-free lubrication

    8

    VW-14/(1-3)-4

    BOG

    1400-2900

    0.1-0.3

    0.4

    Oil-free lubrication

    9

    ZW-4/(1-6)-7

    BOG

    400-1400

    0.1-0.6

    0.7

    Oil-free lubrication

    10

    ZW-2.5/(0.5-4)-(3.5-7)

    BOG

    190-640

    0.05-0.4

    0.35-0.7

    Oil-free lubrication

    11

    ZW-0.45/(10-40)-40

    BOG

    250-950

    1.0-4.0

    4

    Oil-free lubrication

    12

    ZF-1.6/(2-4)-4

    BOG

    280-480

    0.2-0.4

    0.4

    Oil-free lubrication

    13

    ZWF-2.4/(0.2-4)-5.5

    BOG

    170-700

    0.02-0.4

    0.55

    Oil-free lubrication

    14

    DFW-3.6/(2.5-4)-35

    BOG

    750-1050

    0.25-0.4

    3.5

    Oil-free lubrication

    15

    DFW-5.8/4-60

    BOG

    1600

    0.4

    6

    Oil-free lubrication

    16

    ZFWD-3.1/(1.2-4)-5

    BOG

    400-900

    0.12-0.4

    0.5

    Oil-free lubrication

    17

    ZFWD-5/(1.2-4)-5

    BOG

    650-1500

    0.12-0.4

    0.5

    Oil-free lubrication

    18

    VFW-2/(2.5-5)-40

    BOG

    380-690

    0.25-0.5

    4

    Oil-free lubrication

    19

    VFW-0.4/(0-0.3)-13

    BOG

    30

    0-0.03

    1.3

    Oil-free lubrication

    20

    VFW-2.8/(0-0.3)-13

    BOG

    210

    0-0.03

    1.3

    Oil-free lubrication

    21

    ZFW-0.4/1-15

    BOG

    48

    0.1

    1.5

    Oil-free lubrication

    22

    ZFW-0.4/(1-6)-15

    BOG

    48-160

    0.1-0.6

    1.5

    Oil-free lubrication

    23

    VFW-4.1/(1-4)-4

    BOG

    490-1200

    0.1-0.4

    0.4

    Oil-free lubrication

    24

    MW-17.5/0.05-23

    BOG

    1050

    0.005

    2.3

    Oil-free lubrication
    FAQ

    • LNG/BOG compressors: Application fields

      LNG/BOG compressors are mainly used in the following fields: LNG receiving terminals and liquefaction plants for recovering and recondensing boil-off gas. LNG fueling stations to handle BOG generated during storage and refueling. LNG transportation systems, including tank trucks, ships and storage tanks. Industrial gas supply systems for peak shaving and pressure boosting of natural gas. Petrochemical and chemical industries for process gas compression and recycling.

    Tags:

    LNG compressor LNG-BOG compressor

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