Compressed Natural Gas (CNG)

CNG is an ordinary natural gas that is widely used in homes, industries and factories. At low pressure, it is too bulky to be stored or be of much value to car and truck/bus engines. Compressed at high pressure the CNG gas can be stored in the cylinder (various sizes available) giving the vehicle a reasonable range between refills. CNG is composed mainly of methane whereas LPG is a mixture of propane, butane and some other minor chemicals. Methane remains a gas even when compressed to very high pressures, hence the name Compressed Natural Gas (CNG). Natural gas can be liquefied to give Liquefied Natural Gas (LNG) at the very low temperature of -160 centigrade.

CNG is stored at a comparatively higher pressure in a cylinder than LPG. This is why the same LPG cylinder cannot be used for storing CNG. Briefly, the vehicle has to be specifically converted for CNG operation.
When converting to CNG, you retain the existing petrol injection system and fuel tank so the vehicle will still run on petrol. Normally just by flicking a switch on the dashboard you can switch between fuel sources.

Further research into lighter carbon composite fuel tanks is rapidly taking place in an effort to make CNG a viable option for the average motorist.

Disclaimer.

 Please note "Greenerwheels" provides the above information to help inform potential customers to the use of cleaner automotive fuels and the behavior of that particular fuel in the environment.

For further information of a particular fuel and its impact on the environment we suggest that research from respected governing bodies regarding that fuel be carried out prior to purchasing / converting any motor vehicle