Natural gas is a fossil fuel formed when layers of buried plants and animals are exposed to intense heat and pressure over thousands of years. These animals and plants originally produced an energy that came from the sun, and it is stored in the form of carbon in natural gas. NG is combusted to generate electricity, allowing this energy to turn into power. Natural gas is a non-renewable resource. However, it is clean, convenient to use and easy to transport, therefore it is called as an ideal fossil fuel. Industrial users use almost half of the gas produced in the U.S.
In consequence to the increase of shale gas development and new technologies in recent years, the United States today has enough natural gas to power their nation for generations.
The combustion of natural gas produces carbon dioxide and nitrogen oxides at the power plant, however in small quantities than burning coal or oil. In the US, the average emissions rates from natural gas-fired generation are: 1135 lbs / MWh of carbon dioxide, 0.1 lbs / MWh of sulfur dioxide, and 1.7 lbs / MWh of nitrogen oxides . When comparing with average air emissions from coal-fired generation, natural gas produces one percent as much sulfur oxides at the power plant, less than a third as much nitrogen oxides and half as much carbon dioxide. However, extracting, treating and transporting natural gas produces additional emissions.
Taking into account the higher carbon efficiency in the generation process, and adding together every benefit of using natural gas instead of other fossil fuels, the United States is dramatically switching its major fuel. The US has changed to reduce coal and increase natural gas generation, and this path leads to a good conclusion: in the past years, carbon dioxide emissions have unexpectedly fallen. Those measured in the first quarter of 2012 were the lowest of any recorded for the first quarter of any year since 1992.
In the present days, natural gas is an indispensable fuel on a world scale when it comes to supply of energy. NG today supplies about one-half of the total energy consumed by commercial and residential customers, and around 41% of the energy used by United States industry.
The United States gas pipeline network is an extremely
Combined cycle power generation using natural gas is today the cleanest source of power using hydrocarbon fuels. Natural gas can be found cheaply and...