Question

Why is LPG and CNG are more widely used alternative fuels? The LPG supplied in cylinders has a characteristic smell. Explain.

Answer 1

Answer:

Although CNG does produce greenhouse gases upon combustion, it is a more environmentally clean alternative to other fossil fuels like gasoline or LPG. CNG is also safer than other fuels in the event of a spill because natural gas, being lighter than air, disperses quickly when released.

LPG gas is basically propane and butane, and it is odorless in its natural state. The smell that you notice when there is a leak is actually from an entirely different agent called Ethyl Mercaptan. This substance is added to the gas when it leaves the main storage terminals