Natural gas is a cleaner answer to pollution
When was natural gas discovered?
Natural gas, which is inflammable hydrocarbons consisting primarily of methane and ethane, has been known to human beings for thousands of years. It is believed that the concept of eternal fires in the fire worshiping religion of ancient Persia came from natural gas seeps found abundantly in the region. The first intentional drilling for extraction of natural gas was done in ancient China where bamboo poles were used to extract natural gas which was used to dry rock salt.
Since when did the commercial use of gas as a fuel start?
The first modern commercial drilling for natural gas was done in 1821 in the US when the extracted gas was supplied to consumers through small-bore lead pipes. It took much longer to develop technology for widespread use of the fuel as, unlike petrol and diesel, it was difficult to store and transport natural gas. The breakthrough in commercial use of natural gas came after the development of leakproof pipeline coupling in 1890, after which it was possible to supply gas to a distance of about 160 km from the source. Major improvements in gas transportation came after World War 2.
From where is natural gas extracted?
Natural gas is often found dissolved in oil or as a gas cap in oil reserves. This gas found with oil is often called associated or wet gas. There are many non-associated sources of natural gas as well. Some of the gas reserves have a high methane content and the field-production gas from them can be directly used as fuel.
What share of world energy comes from natural gas?
According to a 2014 report of the International Energy Agency, in 2012 oil provided 31.4% of the total global energy consumption. It was followed by coal (29%) and natural gas, which accounted for 21.3% of the global energy use. At present, the biggest use of natural gas is for power generation followed by industrial, domestic and commercial use. Unlike petrol and diesel, the combustion of natural gas is relatively free of soot, carbon monoxide, nitrogen oxides and sulphur dioxide and hence is less harmful for the environment. Also, there are huge reserves of natural gas which can outlast those of petroleum. For these reasons, many countries are encouraging the use of natural gas over petrol, diesel and coal.
What are LPG, LNG and CNG?
Liquefied petroleum gas (LPG), widely used as a cooking fuel in India, is a by-product of the refining process of natural gas as well as petroleum. Liquefied and compressed natural gas (LNG & CNG) are the different forms in which natural gas is transported and utilized by end users.
Which countries have the largest reserves of natural gas?
According to the US Energy Information Administration, as of 2014 the proven global reserves of natural gas were 6,973 trillion cubic feet. Russia alone has about one fourth of this. It is followed by Iran, Qatar and the US. India has 47.8 trillion cubic feet of natural gas reserves. Unfortunately, a huge amount of natural gas is wasted annually in petroleum extraction.