- published: 13 May 2017
- views: 149988
Liquefied natural gas (LNG) is natural gas (predominantly methane, CH4) that has been converted to liquid form for ease of storage or transport. It takes up about 1/600th the volume of natural gas in the gaseous state. It is odorless, colorless, non-toxic and non-corrosive. Hazards include flammability after vaporization into a gaseous state, freezing and asphyxia. The liquefaction process involves removal of certain components, such as dust, acid gases, helium, water, and heavy hydrocarbons, which could cause difficulty downstream. 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).
LNG achieves a higher reduction in volume than compressed natural gas (CNG) so that the (volumetric) energy density of LNG is 2.4 times greater than that of CNG or 60 percent that of diesel fuel. This makes LNG cost efficient to transport over long distances where pipelines do not exist. Specially designed cryogenic sea vessels (LNG carriers) or cryogenic road tankers are used for its transport. LNG is principally used for transporting natural gas to markets, where it is regasified and distributed as pipeline natural gas. It can be used in natural gas vehicles, although it is more common to design vehicles to use compressed natural gas. Its relatively high cost of production and the need to store it in expensive cryogenic tanks have hindered widespread commercial use. Despite these drawbacks, on energy basis LNG production is expected to hit 10% of the global crude production by 2020.(see LNG Trade)
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As global demand for natural gas grows, companies are using advanced technology to transport it from source to customers. Gas can be piped over relatively short distances. But cooling the gas to -162°C (-260°F) turns it to liquid for easier, safe shipment to faraway markets overseas. Shell provided the natural gas for the first liquefied natural gas (LNG) project more than 50 years ago. Today the world's largest provider of LNG, Shell continues to develop innovative approaches to unlock new resources of natural gas. In North-West Australia, for example, Shell is working with partners to build a giant floating production and liquefaction facility at sea, Prelude FLNG. This is the official YouTube channel of Shell, a worldwide leader in the oil and gas industry. Our aim is to meet the ener...
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No, I never thought that it could be enough
Suddenly you, you shock me into love
Ah ah oh
Into love
Ah ah oh