Study and Investigation of Natural Gas as Fuel for Vehicles and their Environmental Impacts

This research is dedicated for studying and investigation of how to use natural LPG and CNG gases and its superiority over other fuels such as petroleum, diesel and coal in vehicles, cooking and its environmental impacts. Currently, more than 80% of air and environmental pollution in Kabul and other major cities of the country are due to cars fume and the use of low-quality diesel and petroleum fuels. Liquefied petroleum gas (LPG) consists of heavy gas hydrocarbons such as propane and butane, which are liquefied under pressure. If we use liquefied natural gas (LPG) and compressed gas (CNG) are used in vehicles, it will not pollute the environment. On the other hand, it saves a lot of economic costs. This scientific-research is considering the causes of air and environmental pollution from vehicles fume by low quality diesel and petroleum fuels in Kabul and other big cities of the country. Specific suggestions have been made for replacing petroleum and diesel engines with dual fuel oil and gas engines. Also, as a result of this scientific-research, the economic comparison of gas and liquid fuels in internal combustion engines has been evaluated. In addition, the environmental impact and economic benefits of gas related liquid hydrocarbons have been studied based on the field data, laboratory research, and library scientific references.