Interest in clean, renewable energy and related industries is growing across the Korean economy. President Moon Jae-in recently launched a drive to steer away from nuclear power and there's a likely possibility that Korea will be able to import natural gas from the Russian Far East thanks to easing tensions on the Korean Peninsula and the recent Korea-Russia summit.
Natural gas, the naturally occurring gas mixture buried underground, is collected by drilling rigs, just like petroleum, to be used for power generation and heating. Depending on the means of transportation, it's called either piped natural gas (PNG), carried through pipelines, or else liquefied natural gas (LNG), carried after being converted into a liquid.
Because PNG is carried to the spot of consumption through a pipeline, it's mostly used in Europe or Northern America, where ground transportation is available.
LNG is liquefied by dropping the temperature to minus 162 C and then carrying it by sea. After an LNG ship arrives with its liquefied gas on board, the Korea Gas Corporation converts the liquid back to a gas at its terminals and then supplies it to power plants and residences.
Even though LNG requires a huge cost for liquefying, transporting and vaporizing, it's impossible for Korea to receive PNG from its origin, as the pipelines would have to cross North Korea by land.
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Source : KOREA.NET