Lng Regasification Process - An Overview
What is Regasification of LNG? Regasification is the physical process by which liquefied natural gas (LNG) is heated to be returned into its gaseous state. Liquefied natural gas must be regasified to be used as fuel, power generation, for heating, cooking etc. This process can be done in different ways. Natural gas (NG) is also converted into liquefied natural gas (LNG) in order to make its storage and transport easier.
How does the LNG Terminal Work? Generally, this process takes place at large import terminals where LNG carriers release their LNG cargo. At these terminals, the gas is stored in a liquid state in LNG storage tanks, and regasified before it is transferred as natural gas to the end-user through a pipeline gas network. Alternatively, the LNG can be transported further by truck, rail or smaller ships. The process at the LNG terminal can be divided into four stages 1. Receiving and Unloading of LNG from ships 2. Storage or Tanking of LNG 3. Compression and Regasification 4. Transmission 1. Receiving and Unloading of LNG from Ships Pipes are used to transfer LNG from the ships to the storage tanks on the terminal. The LNG gas is received at extremely low temperatures (-160 C) while transferring to the tanks. The tanker is moored at the unloading quay and the LNG is offloaded using three arms that are located at the quay. 2. Storage or Tanking of LNG The LNG passes through the pipelines that join the arms to the tanks. Tanking of LNG involves storing in a special cryogenic tank designed for extremely low temperatures. The outer walls of the tanks are made of reinforced concrete or steel to secure the finest insulation for the LNG. Reliquefyer is a collector system