As a gas liquefaction plant (LNG train) is called a large-scale industrial manufacturing plant, which produces natural gas from LNG ( liquefied natural gas).
Production of liquefied natural gas
To transport natural gas economically over long distances, its volume must be greatly reduced. To a maximum reduction in volume of natural gas has to be liquefied. Here, in a natural gas liquefaction plant is cooled to about -160 degrees down. In the phases of liquefaction strict safety rules are respected and protective measures must be taken, because the gas is very vulnerable and highly flammable.
In the natural gas there are many impurities that need to be excreted in the liquefaction process, so that the cooling units do not fail before the natural gas is liquefied at low temperature. Common organic sulfur compounds are present, which need to be removed. The compression of the Füssigerdgas to natural gas in proportion 1:600 . In the process of liquefying the natural gas falls to about 15% of CO2 ( carbon dioxide) and to be deposited as well as water vapor contained. The water contained in the gas is deposited by natural gas drying.
Each LNG liquefaction plant consists of a compressor plant that produces propane, a plant for condensation for methane and from an installation for Ethan.
The liquefaction plants are divided into individual trains. The biggest trains with a capacity of 7.8 million tonnes per year are located in Ras Laffan ( RasGas 7 and 8). As part of the Gorgon gas project in north-western Australia, a large plant with an annual volume of 5 million cubic meters ( million tons) of LNG is built for € 6.5 billion ( 10 billion AUD $).
The transport of liquefied natural gas is carried out either in pipelines, LNG tankers or LNG vehicles.