LNG facts

LNG is an abbreviation of Liquefied Natural Gas. LNG is natural gas that is cooled at atmospheric pressure to -162°C, when it condenses to becomes liquid. LNG is not pressurised and is odourless, non-toxic and non-corrosive. It is simply cold. LNG is only flammable if, following evaporation, it comes into contact with an ignition source and the level of gas in the air is between 5% and 15%.

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Liquefied Natural Gas

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What is LNG?

Liquefied Natural Gas – or LNG – is a clear, odourless liquid produced by cooling natural gas to minus 162°C. In this liquid state, the volume of LNG is about 600 times less than that of natural gas. It can therefore be stored and transported very efficiently. If gas needs to be carried over long distances, LNG is a particularly good alternative to gas transport by pipeline.

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Where does LNG come from?

Most LNG comes from areas where large volumes of natural gas have been discovered such as North Africa, the Middle East and the West Indies. Countries that produce LNG include Trinidad, Nigeria, Algeria, Egypt, Oman, Qatar, Indonesia, Malaysia and Australia.

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What is the difference between LNG and LPG?

Liquefied petroleum gas (LPG) and LNG are often confused with each other. LPG consists chiefly of propane (C3H8) and butane (C4H10), and is used mainly in domestic and commercial applications (such as fuel for cars). LPG is liquefied by holding it under high pressure. LNG, by contrast, is a liquid at atmospheric pressure but at a very low temperature (approx. – 162°C). LPG's specific gravity is also totally different from LNG's: components are lighter than air and the gas does not disperse if it escapes. LNG (natural gas), by contrast, is heavier than air and disperses and rarefies very quickly into a mixture that is no longer flammable. The storage of LPG at pressure, unlike the storage of LNG at low temperature, requires the use of very different equipment (other material properties, thicknesses, insulation) and standards.

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How does LNG fits in the energy policy of the Dutch government?

Also in the future, The Netherlands want  to play a key role in the trade of gas. The Netherlands has a strong position with its gas production and storage and the extensive network of pipelines. Through new pipeline connections to for example the UK and also from Russia, but also including LNG terminals, this will strengthen this position. Gate terminal plays an important role in the further development of the Dutch gas roundabout. This will also contribute to the increased security of supply.

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What happens at an LNG receiving terminal?

LNG arrives at the terminal by ship, is stored in tanks, warmed (or regasified) and then delivered to the gas transport network. At this point, its use is identical to that of conventional natural gas.

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How will the LNG be stored?

The LNG will be stored in specially designed full containment tanks. A full containment tank consists of a metal inner tank and a concrete outer tank. Thermal insulation between the steel inner tank and the concrete outer tank will limit the evaporation of LNG to about 0.07% of the tank’s content per day.

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Where will the LNG be sent to?

The gas that is regasified from the LNG will be delivered to the gas transport network and supplied to both domestic and industrial customers in the Netherlands. The proposed LNG terminal on the Maasvlakte will also be an important supply point for the rest of Europe.

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What is the environmental impact of LNG?

From the moment the LNG is regasified, the environmental impact is identical to that of natural gas (e.g. fewer CO2 emissions on combustion in comparison with coal). The energy needed for the regasification process can be produced by using some of the gas itself. If there is direct environmental exposure, for example through leakage, LNG causes less damage than an oil spill since it will immediately regasify.