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Ethylene compressors.png
Ethylene compressors.png

High-Efficiency Ethylene Compressors from China Factory - Reliable Suppliers for Ultra-Low-Temperature Applications

Introducing our state-of-the-art cryogenic compressor, specifically designed for ethylene plants, made by a leading factory in China. This essential power equipment excels in low-temperature adaptability, ensuring reliable performance at extreme temperatures as low as -115°C. Manufactured using specialized low-temperature materials, our compressor effectively prevents brittle fracture, enhancing safety and durability, Utilizing high-efficiency centrifugal compression technology and advanced sealing solutions, our compressor offers a superior compression ratio and greater energy efficiency compared to traditional models. This results in lower energy consumption and a smoother operational experience. Engineered for long-lasting performance, our product has a service life of 15 to 20 years, making it the ideal choice for suppliers seeking reliable solutions for ultra-low-temperature refrigeration in ethylene production. Trust our factory in China to deliver quality and performance you can rely on
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    Product Details

    Ethylene Diaphragm Compressor Advantages
    01
    Absolutely Oil-Free & Ultra-High Purity Assurance
    The diaphragm isolation technology ensures that the gas is 100% free from contact with lubricating oil during compression, achieving a compression purity of over 99.999%. This is critical for "polymer-grade" ethylene used as a polymerization feedstock, where even trace oil contamination can affect catalyst activity, leading to product quality degradation or even polymerization failure.
    02
    Static Seal Zero Leakage & Intrinsic Safety
    The entire gas chamber employs a static seal structure, fundamentally eliminating the possibility of gas leakage. For ethylene, which has a wide explosion limit and high hazard level, this feature provides the highest level of safety assurance, effectively preventing the accumulation of flammable gas in the plant area and meeting the most stringent safety production and environmental protection requirements.
    Key Design Points for Ethylene Diaphragm Compressors
    01
    Precise Anti-Liquefaction & Temperature Control
    Given that the critical temperature of ethylene (9.21°C) is close to ambient temperature, it is highly prone to liquefaction during compression and cooling, which can cause "liquid slugging." The design must include accurate thermodynamic calculations to ensure that the discharge temperature and the gas temperature after inter-stage cooling always remain above the dew point at the corresponding partial pressure, with a sufficient safety margin. The cooling system must be efficient and reliable to prevent gas condensation within the chamber or piping.
    02
    High-Pressure & Material Compatibility
    To meet the demands of processes such as ultra-high-pressure polyethylene synthesis, the compressor must adopt a multi-cylinder series arrangement or a specially reinforced structure to achieve discharge pressures exceeding 100 MPa. Materials for wetted parts are typically selected as 316L stainless steel or higher-grade alloys to ensure high-pressure strength while providing excellent chemical inertness, preventing any adverse reactions with ethylene. The use of copper and its alloys is strictly prohibited to avoid catalyzing the formation of hazardous polymers from ethylene.
    03
    Multi-Layered Safety Monitoring & Protection
    A three-layer diaphragm structure is standard, equipped with a diaphragm rupture monitoring and alarm device. If the inner diaphragm is damaged, the system can immediately trigger an alarm and safely shut down. The system must integrate interlocks such as high discharge temperature and pressure alarms, as well as oil pressure protection. For process connections, nitrogen purge connections should be to allow for inerting and purging of the system before startup, ensuring safe operation.
    Certificates
    eac
    ce
    iso
    iso2033
    atex
    Model Selection
    GZ Model
    ModelG70Z/G95Z/G110Z/G130Z Piston Stroke70mm~130mm Maximum Piston Force10KN~30KN
    Maximum Discharge Pressure70Mpa Flow Range1~500Nm³/h Motor Power2.2KW~30KW
    Crankshaft Speed420rpm Cooling MethodWater Cooled/Air Cooled
    GV Model
    ModelG70V/G95V/G130V Piston Stroke70mm~130mm Maximum Piston Force10KN~30KN
    Maximum Discharge Pressure50Mpa Flow Range1~200Nm³/h Motor Power2.2KW~30KW
    Crankshaft Speed420rpm Cooling MethodWater-cooled / Air-cooled
    GL Model
    ModelG110L/G130L Piston Stroke110mm~130mm Maximum Piston Force20KN~40KN
    Maximum Discharge Pressure100Mpa Flow Range10~1000Nm³/h Motor Power7.5KW~90KW
    Crankshaft Speed420rpm Cooling MethodWater-cooled / Air-cooled
    GD Model
    ModelG110D/G130D/G150D/G180D/G182D/G210D Piston Stroke110mm~210mm Maximum Piston Force20KN~160KN
    Maximum Discharge Pressure100Mpa Flow Range30~2000Nm³/h Motor Power22KW~200KW
    Crankshaft Speed420rpm Cooling MethodWater-cooled / Air-cooled
    G Diaphragm type compressor
    Z Piston stroke 70mm
    18 Flow (Nm3/h)
    5.3 Inlet pressure (barg)
    12.5 Outlet pressure (barg)
    No. Model Cooling water Flow Inlet pressure Outlet pressure Dimensions L×W×H Weight Motor Power
    (L/h) (Nm³/h) (MPa) (MPa) (≈mm) (≈kg) (kW)
    1 GZ-18/5.3-12.5 500 18 0.53 1.25 1000×800×1100 800 5.5
    2 GZ-30/20-60 500 30 2 6 1100×800×1100 800 7.5
    3 GZ-22/7-30 1000 22 0.7 3 1200×800×1100 800 11
    4 GV-20/7-150 1000 20 0.7 15 1400×800×1100 900 11
    5 GV-118/（34.5-44.5）-55 1000 118 3.45-4.45 5.5 1400×800×1100 1000 11
    6 GV-160/（0.35-10.5）-30 2000 160 0.035-1.05 3 2600×1800×1600 3000 18.5
    7 GL-55/3 1000 55 Atmospheric 0.3 2200×1800×1600 2800 11
    8 GL-130/0.3-0.5 1500 130 0.03 0.05 2300×1800×1600 2800 11
    9 GL-40/0.2-25 2000 40 0.02 2.5 2300×1800×1600 2800 18.5
    10 GD-180/2.3-61.3 4500 180 0.23 6.13 3800×2300×1800 6000 45
    11 GD-1076/（17-24）-125 10000 1076 1.7-2.4 12.5 4200×3200×2200 12000 132
    12 GD-945/11.7-126 15000 945 1.17 12.6 4200×3500×2200 12000 160
    The equipment size and weight are for reference only, and the final design shall prevail.
    CASE STUDY
    Case Study Russia

    Russia

    Case Study USA

    UNITED STATES

    Case Study Spain

    Spain

    Case Study Kazakhstan

    Kazakhstan

    Frequently Asked Questions (FAQ)
    Why is oil-free compression essential for ethylene processing?

    Oil-free compression ensures that the ethylene remains 100% free from contact with lubricating oil, achieving a purity of over 99.999%. This is critical for polymer-grade ethylene used as polymerization feedstock, where even trace oil contamination can degrade catalyst activity, leading to polymerization failure or poor product quality.

    How does the static seal design prevent gas leakage?

    The entire gas chamber employs a static seal structure which fundamentally eliminates potential leakage paths commonly found in dynamic seals. This design provides the highest level of safety for hazardous gases like ethylene, which has a wide explosion limit.

    What is the risk of liquefaction during ethylene compression?

    Ethylene has a critical temperature of 9.21°C, which is very close to ambient temperature. This makes it highly prone to liquefaction during compression and inter-stage cooling. If liquefaction occurs, it can cause dangerous "liquid slugging," which is why precise thermodynamic calculations and efficient temperature control cooling systems are mandatory.

    Which materials are used in the compressor parts to ensure safety?

    Wetted parts are constructed using 316L stainless steel or higher-grade alloys to provide high-pressure strength and chemical inertness. The use of copper and its alloys is strictly prohibited to prevent the formation of hazardous polymers catalyzed by copper.

    What safety monitoring features protect the diaphragm from failure?

    The system uses a standard three-layer diaphragm structure integrated with a rupture monitoring and alarm device. If the inner diaphragm is damaged, it triggers an immediate alarm and safely shuts down the system. It also integrates high temperature, high pressure, and oil pressure interlocks, along with nitrogen purge connections for system inerting.