1. Receiving and Unloading of LNG from Ships

Special types of pipes are used to transfer LNG from the ships to the storage tanks on the terminal. The LNG gas is received at extremely low temperature (-160 C) while transferring to the tanks. The tanker is moored at the unloading quay and the LNG is offloaded using three arms (special pipes) located at the quay.

2. Storage or Tanking of LNG

The LNG passes through the pipelines that joins the arms to the tanks and is stored inside the tanks at a temperature of -160 C. Tanking of LNG involves storing at special cryogenic tank designed for extremely low temperature. The double walled insulated tanks are made to store the gas in liquid state by preventing boil-off. The outer walls of the tanks are made of prestressed reinforced concrete or steel to attain the finest insulation for the LNG.

In spite of such high insulation, minor evaporation still takes place because of low heat leakage. Compressor and recondensing system are used to collect this gas and feed it back to the LNG. This recycling system prevents any kind of escape of LNG from the system.

Reliquefyer /Recondenser

Reliquefyer is a collector system wherein LNG from the tanks and Boil off from the compressors is collected before is goes for the regasification process. High pressure pumps are used to push LNG from the Reliquefyer to the Regasification system. Recondenser also helps in keeping the boil off gas in the liquid state.