Gas liquefaction plant
As a gas liquefaction plant ( LNG train ) a large-scale industrial manufacturing plant is referred to, consisting of natural gas, liquefied natural gas ( L iquified N atural G prepared as).
Production of liquefied natural gas
In order to transport natural gas economically over long distances, its volume must be reduced considerably. Natural gas must be liquefied to reduce the volume as much as possible. Natural gas is cooled to around −160 degrees in a liquefaction plant. In the liquefaction phases, strict safety rules must be observed and protective measures must be taken, as the natural gas is very vulnerable and easily flammable.
There are numerous impurities in natural gas that have to be eliminated in the liquefaction process so that the refrigeration units do not fail before the natural gas has liquefied at the lowest possible temperature. Often they contain organic sulfur compounds that have to be removed. The compression of liquefied natural gas to natural gas takes place in a ratio of 1: 600. In the process of liquefying the natural gas, up to 15% CO 2 ( carbon dioxide ) is generated and, like the water vapor it contains, must be separated off. The water contained in the gas is separated by natural gas drying.
Every liquefaction plant for LNG consists of a compression plant that produces propane , a plant for condensation for methane and a plant for ethane .
The liquefaction plants are divided into individual trains . The largest trains with a capacity of 7.8 million t per year are located in Ras Laffan (RasGas 7 and 8). As part of the Gorgon gas project in Northwest Australia, a large facility with an annual volume of 5 million m³ (million t) of LNG is being built for around € 6.5 billion ( AUD $ 10 billion ).
The liquefied natural gas is transported either in LNG tankers or LNG vehicles.
Individual evidence
- ↑ Abu Dhabi Gas: Gas Processing ( Memento from February 20, 2012 in the Internet Archive )
- ↑ Driver Selection for LNG Compressor ( Memento from September 29, 2007 in the Internet Archive )
- ↑ freepatentsonline.com