What is regasification of LNG?
Onshore LNG regasification process is a process of producing and supplying NG, the final product, by receiving LNG from an LNG carrier and storing it in a cryogenic liquid state and then vaporizing LNG through a vaporizer. From: Computer Aided Chemical Engineering, 2021.
What is the purpose of regasification?
Regasification is the process of converting LNG gas from liquid state to gaseous state. Heat exchangers are used to regasify the LNG after it is removed from the tanks and pressurized between 70-100 bars. Generally sea water is used for the regasification process along with high pressure pumps for transferring LNG.
What is LNG liquefaction process?
The process for the liquefaction of natural gas is essentially the same as that used in modern domestic refrigerators, but on a massive scale. A refrigerant gas is compressed, cooled, condensed, and let down in pressure through a valve that reduces its temperature by the Joule-Thomson effect.
How is storage transport and regasification of LNG achieved?
When a carrier arrives at a receiving terminal, the LNG is offloaded and stored in large tanks at atmospheric pressure. It is subsequently pumped out of the tanks, then pressurized, heated and regasified using seawater or steam.
What pressure does LNG liquify?
The natural gas is then condensed into a liquid at close to atmospheric pressure by cooling it to approximately −162 °C (−260 °F); maximum transport pressure is set at around 25 kPa (4 psi) (gauge pressure), which is about one-fourth of atmospheric pressure at sea level.
How does LNG stay in liquid form?
LNG is kept in its liquid form via autorefrigeration. This is a process in which the fuel is kept at its boiling point. Through autorefrigeration any additions of heat are offset by the energy lost from the LNG vapor, vented out of the storage and used to power the tanker.