Essay on Global Warming: Ethanol is the Answer to Pollution

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Abstract

Ethanol has a long history of being added to gasoline to increase octane and to help the engine burn cleaner and more efficiently. There are benefits and disadvantages; until technology advances more, the ethanol mix E85 will only be available to those who buy select models that are capable to run on E85. There are numerous costs involved in this technology, due to limited demand and limited technology. Most of the people who own E85-capable vehicles do not fill them with ethanol due to decreased mileage and scarce availability. Now, the federal government is pushing to further advance this technology in hope that it will be promising enough to help the country both on an economic and an environmental level.

Introduction

Ethanol is an alternative energy source that can help to reduce the use of both foreign oil and fossil fuels in general. Ethanol fuel has a long history of use even before motor vehicles were invented. This type of fuel is easily manufactured and can come from numerous sources. Ethanol is a clear liquid made from feedstock, which is organic material such as sugar beets and sugar cane, corn, and trees and grass (How Is Ethanol Made?, 2005, para. 1). To produce ethanol, feedstock is ground up, and the sugar from it is dissolved (How Is Ethanol Made?). If corn or trees and grass are ground up, the cellulose from them must first be converted into sugar (How Is Ethanol Made?). The sugar from the feedstock is fed to microbes, producing ethanol and CO2 (How Is Ethanol Made?). Then, the ethanol is purified to make it ready for consumption (How Is Ethanol Made?).

Fig. 1 (How Ethanol Is Made, 2007, para. 1)

The Ethanol Process

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Henry Ford first pioneered ethanol use in automobiles in 1896 in his horseless carriage (Energy Kids Page, 2007). When he developed the Model A in 1908, Ford engineered it to be a flex-fuel vehicle, able to run on both gas and ethanol (Energy Kids, 2007). Ethanol was then used in both World War I and World War II to increase capabilities. As World War II ended, production of ethanol dropped until the 1980’s when lead was banned as an octane booster (Energy Kids, 2007). In 1978, gasohol was used in some applications, consisting of ten percent alcohol (Energy Kids, 2007). In 1997, automotive manufacturers Ford Motor Company and General Motors began to mass-produce flex-fuel vehicles, or FFVs, able to run on E85, a fuel mix that is 85 percent ethanol and 15 percent gasoline or to just run on unleaded gasoline only (Energy Kids, 2007).

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