LNG/LCNG Refilling Equipment
An LNG Refueling Station and an L-CNG Refueling Station are cryogenic fueling infrastructures designed to supply clean energy to natural gas vehicles. While an LNG station dispenses fuel directly as a liquid, an L-CNG station uses liquid storage as its supply base but vaporizes it to dispense high-pressure gas.
LNG Refueling Station
LNG Refueling Station
An LNG station stores natural gas in its liquid state (-162°C / -260°F) and dispenses it directly into cryogenic vehicle tanks.
Key Features
- Direct Liquid Dispensing: Uses low-pressure cryogenic pumps to transfer liquid LNG into vehicle tanks at fast flow rates.
- Low Auxiliary Power: Requires relatively low electrical power to operate since pumping liquid demands significantly less energy than compressing gas.
- Compact Footprint: Stores high-density energy in cryogenic tanks, requiring far less physical space than large bank cascades of high-pressure gas cylinders.
Primary Applications
- Long-Haul Freight & Logistics: Fleet fueling along highway transport corridors for heavy-duty trucks and intercity buses requiring extended driving ranges.
- Marine & Port Terminals: Bunkering stations for LNG-powered harbor tugs, ferries, and inland cargo vessels.
L-CNG Refueling Station
L-CNG Refueling Station
An L-CNG station receives and stores fuel as liquid LNG, but uses high-pressure cryogenic pumps and air-heated vaporizers to convert the liquid into Compressed Natural Gas (CNG) at ambient temperature and high pressure (200–250 bar) for dispensing.
Key Features
- High Efficiency & Low Energy Costs: Liquid is pressurized prior to vaporization, which consumes up to 80% less electricity compared to conventional CNG stations using multi-stage gas compressors.
- Dual-Fuel Versatility: Capable of dispensing both LNG and CNG from a single liquid storage supply to serve diverse vehicle fleets.
High-Purity Gas Output: Cryogenic treatment removes moisture and heavy hydrocarbons during liquefaction, providing cleaner CNG fuel to end users.
Primary Applications
- Urban & Municipal Transit Depots: Refueling centers for city buses, municipal waste trucks, and short-haul delivery vans running on CNG.
- Off-Grid CNG Refueling: Fueling stations located in regions without access to high-pressure natural gas pipelines, utilizing trucked LNG as the base supply.
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