What is the difference between CNG and LNG?

The major difference between Compressed Natural Gas (CNG) and Liquefied natural gas (LNG) is that the former is NOT liquefied. CNG involved compressing the natural gas to less than 1% of the volume it occupies at standard atmospheric pressure. It is stored and distributed in hard containers at a pressure of 200–248 bar (2900–3600 psi), usually in cylindrical or spherical shapes. LNG is involves liquefying natural gas temporarily to liquid form, which is 1/600th the volume of natural gas in the gaseous state, for ease of storage or transportation. Natural gas is a gas consisting primarily of methane, so both CNG and LNG mainly have Methane as component.

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