Question

What is the difference between LPG and CNG​

Answer 1

CNG is Compressed Natural Gas, which is mainly methane compressed at a pressure of 200 to 248 bars.LPG is Liquefied Petroleum Gas, a mixture of propane and butane liquefied at 15 °C and a pressure of 1.7 - 7.5 bar. ... CNG is cheaper and cleaner, but LPG has a higher calorific value

Answer 2

CNG is less harmful for ntaure in comparison to LPG. CNG is more safer than LPG, because it is lighter in weight of LPG. So when there is a CNG leakage then it spreads out in air whereas LPG is heavier so it collects in lower layers which increase the chance of accident.

hope this helps