Natural Gas Industry
Natural Gas Industry
In natural gas gathering, transportation, processing and LNG facilities, compressed air is mainly used for instrument air systems and molecular sieve regeneration. Oil-laden air can cause sticking of pneumatic control valves, molecular sieve poisoning and failure of nitrogen membrane modules, directly endangering production safety. For this reason, natural gas stations generally adopt ISO 8573-1 Class 0 oil-free air compressors as the supply of instrument air and process auxiliary air.
- Instrument Air: Supplies oil-free and clean control air for pneumatic regulating valves, ESD emergency shutdown valves, DCS/SIS systems at gas gathering stations, city gate stations, processing plants and LNG receiving terminals.
- Molecular sieve / Adsorbent regeneration: Provides regeneration air for molecular sieve towers in natural gas dehydration and dehydrocarbon units, preventing adsorbent poisoning caused by oil contamination.
- Front air source for on-site nitrogen generation: Delivers oil-free compressed air for PSA nitrogen generators and membrane separation nitrogen systems, applied to pipeline nitrogen replacement and tank inerting.
- Pipeline and tank drying & purging: Oil-free dry air purging and tightness testing for LNG storage tanks and process pipelines before commissioning.
- Pressurised ventilation and cabinet purging: Provides positive pressure protective air for electrical cabinets and analysis shelters in hazardous classified areas.
? Ensure reliable safety interlockZero oil contamination prevents jamming of pneumatic actuators and guarantees error-free operation of ESD emergency shutdown systems.
? Protect molecular sieve and nitrogen-making componentsExtend the service life of adsorbents and membrane modules and reduce replacement costs.
? Suitable for field skid-mounted working conditionsExplosion-proof design with excellent weather resistance, meeting the 24/7 continuous operation requirements of natural gas stations.
Widely applied in natural gas gathering and transmission stations, city gate stations, natural gas processing plants, CNG/LNG refueling stations and liquefaction plants.
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