Difference Between CNG and LPG


The key differences between CNG and LPG are provided in this article. CNG is an abbreviation of “Compressed Natural Gas” whereas LPG is an abbreviation of “Liquefied Petroleum Gas”. The primary difference between CNG and LPG lies in the components that make up these fuels. While CNG is primarily made up of Methane, LPG is primarily made up of propane. A few other differences between CNG and LPG can be found in the tabular column provided below.

Difference between CNG and LPG

One of the major differences between CNG and LPG is that CNG is relatively cheaper than LPG. However, it is important to note that LPG has a much greater calorific value when compared to CNG.

Difference between CNG and LPG
Its primary use is as an alternative for fuel in automobiles. It has various uses such as heating and cooking in homes. LPG also has industrial and agricultural uses.
The primary component in CNG is methane. The primary component in LPG is propane and butane.
It produces relatively lower quantities of greenhouse gases (in comparison with LPG). It produces relatively large amounts of carbon dioxide, a greenhouse gas.
It is relatively safe as it disperses rapidly into the air. It is highly flammable as it is much heavier than air.
The primary source of obtaining CNG is from oil wells, bed methane wells, coal wells and even natural gas wells. The main source of obtaining LPG is from the process of extracting natural gas from reservoirs.

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