CNG is extracted from natural gas wells, methane, and oil wells. Difference Between CNG and LPG. CNG and LPG are both fuels. We know that CNG stands for Compressed Natural Gas and LPG stands for Liquefied Petroleum Gas. The best of the differences can be understood as follows-CNG. The main component is methane.
Natural gas provides just over 1,000 BTUs per cubic foot (0.0283 cubic meters); the same volume of propane in gaseous form provides about 2,500 BTUs. This means that propane contains about 2.5 times more usable energy content. So, less propane is needed to produce the same amount of energy as natural gas.
Natural gas: Natural gas is a major energy source around the world, accounting for 21 per cent of the world’s energy supply in 2010. Natural gas is an odourless, colourless gas, largely formed over millions of years underground. It’s made of a variety of compounds (see below), but methane is by far the most significant.
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difference between cng and lpg