LNG Gasification Station

The LNG gasification process begins when LNG is transported to the station by a low-temperature tank truck. After the vehicle arrives, the LNG is transferred to the station's storage tank through the unloading system.

The tank truck's built-in pressure booster increases the pressure inside the truck tank. The resulting pressure difference drives LNG from the transport tank into the station's LNG storage tank.

Once stored, the LNG can be vaporized according to the downstream gas demand.

During gas supply, the storage tank pressure booster increases the LNG pressure. The pressurized LNG then enters the air-heated vaporizer, where it absorbs heat from the surrounding air and undergoes a phase change from a cryogenic liquid into gaseous natural gas.

In summer, the vaporized natural gas can generally be supplied directly to the downstream gas pipeline when the ambient conditions are suitable. During winter or under low-temperature operating conditions, the gas can pass through a water-bath heater before entering the gas pipeline to ensure the required supply temperature.

The complete LNG gasification process can be divided into several key stages.

LNG Unloading

LNG is delivered to the gasification station by low-temperature LNG tank trucks. At the unloading platform, the pressure of the transport tank is increased using the truck's pressure booster.

The pressure difference between the LNG tank truck and the station storage tank enables LNG to flow into the storage tank.

This unloading configuration provides an efficient method for transferring cryogenic LNG while reducing the need for additional transfer equipment.

Cryogenic LNG Storage

After unloading, LNG is stored in a dedicated cryogenic storage tank. The storage system provides a buffer between LNG transportation and downstream gas consumption.

This allows the gasification station to maintain a relatively stable gas supply even when LNG deliveries and downstream consumption do not occur simultaneously.

The storage capacity can be configured according to the gas consumption, transportation schedule, and operating requirements of the project.

LNG Pressure Boosting

Before vaporization, the LNG is pressurized through the storage tank pressure boosting system.

Increasing the LNG pressure provides the necessary conditions for downstream vaporization and gas transmission. The pressurized LNG is then directed to the vaporization equipment.

The pressurized LNG enters the air-heated vaporizer, where heat from the surrounding air is transferred to the cryogenic LNG.

As the LNG absorbs heat, it changes phase from liquid to gas.

Air-heated vaporizers can utilize ambient heat without continuously consuming fuel for the primary vaporization process. Their configuration is therefore particularly suitable for LNG gasification stations designed for continuous natural gas supply.

Ambient temperature has a direct influence on natural gas vaporization conditions. During winter or periods of low ambient temperature, additional heating may be required.

The gas can therefore pass through a water-bath heater after the air-heated vaporizer. The water-bath heating process provides additional thermal energy to ensure that the natural gas reaches the required supply conditions before entering the downstream pipeline.

The heating configuration can be adjusted according to seasonal operating conditions and project requirements.

During LNG transportation, storage, and unloading, a certain amount of gas may be generated due to heat entering the cryogenic system. This gas is commonly referred to as boil-off gas (BOG).

After the LNG tank truck has completed unloading, residual gas may also remain inside the transport tank.

The LNG Gasification Station is equipped with a BOG handling process to manage these gases. Residual gas from the LNG tank truck and BOG generated from the storage tank can enter the BOG heating system.

The BOG heater exchanges heat with ambient air to raise the gas temperature before the gas is introduced into the natural gas pipeline.

This process allows recoverable gas to be incorporated into the gas supply system rather than being unnecessarily discharged, helping improve overall gas utilization.

The LNG Gasification Station is particularly suitable for industrial users that require a stable natural gas supply but may not have access to a convenient pipeline gas source.

Industries with significant natural gas consumption can use LNG as an alternative energy source for production processes. After LNG is delivered to the station, it is stored, vaporized, and supplied as gaseous natural gas to the factory's gas-consuming equipment.

Typical applications include:

Steel plants

Chemical plants

Glass manufacturing

Ceramic factories

Concrete mixing plants

Food processing facilities

Pharmaceutical manufacturing

New energy material production

Natural gas can be used for industrial heating, boilers, furnaces, kilns, drying systems, and other thermal processes depending on the requirements of the facility.

Steel production requires large amounts of thermal energy for heating and processing. An LNG gasification station can provide a stable natural gas supply for suitable steel production processes.

The integrated storage and vaporization system helps maintain continuous gas availability while allowing LNG to be delivered according to the plant's consumption requirements.

LNG Gas Supply for Chemical Plants

Chemical production facilities often require reliable fuel and process gas supplies. LNG can be transported to the plant and converted into gaseous natural gas through the gasification station.

The system provides an alternative gas supply solution for chemical facilities located in areas where pipeline natural gas infrastructure is limited.

Glass and ceramic production processes commonly require high-temperature heating.

The LNG Gasification Station can provide gaseous natural gas for suitable industrial furnaces and heating equipment. Stable gas pressure and continuous supply are important for maintaining consistent production conditions.

Food processing and pharmaceutical manufacturing facilities may require natural gas for boilers, heating systems, drying processes, and other thermal applications.

Where clean energy and controlled gas supply are required, LNG gasification can provide a centralized natural gas supply solution for the facility.

New energy material manufacturing has created additional demand for stable industrial energy supplies.

LNG gasification stations can provide natural gas to suitable production facilities while allowing users to establish gas supply infrastructure without relying entirely on long-distance pipeline construction.