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Why natural gases cannot transport via pipeline from overseas countries ?

Low Temperature Effects

LNG is liquefied natural gas, which is the very cold liquid form of natural gas--the fuel that's burned in gas stoves, home heaters, and electric power plants. When it warms back up, LNG becomes natural gas again. You can't liquefy natural gas without cooling it.

At land natural gas is shipped by pipeline. But natural gas needs to be liquefied (cooled to below -256 degrees F)and shipping to LNG carriers .This is the only practical way to import from overseas countries.

All LNG ships have two hulls, in effect a "double ship" that protects the cargo in a collision or grounding.

As liquefied gas cargoes are often shipped at low temperatures it is important that temperature sensing equipment is well maintained and accurately calibrated.

Hazards associated with low temperatures include:

Low Temperature Effects in gas carrier - Causes of brittle fracture & contermeasures

Preventive measures against spillage of low temperature cargo

How to cool down cargo system - a brief guide to Liquefied gas carrier

Low Cargo Temperature Effects -Ice Formation in gas carrier cargo system

Low Cargo Temperature Effects -What is rollover of Liquefied gas cargo ?

Related Information:

  1. Vapour Characteristics of liquefied gases

  2. Cargo containment systems - Independent Tanks & other tank types

  3. Flammable vapours in cargo tanks and how to monitor safety limits

  4. Reactivity of liquefied gas cargo and safety guideline

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