Download this Term Paper in word format. This helps to establish the case that a gap exists between that which science accepts about biofuels and that which politicians present on the subject. This is complimented by Thornton's concise detraction of ethanol, this article serves as reinforcement for the recurring case that the process of yielding energy from ethanol is too consuming of time and energy, and thus, should be disregarded as a means to developing an alternative fuel source.
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Likewise, in the same article, Kay Martin of the Ventura County, California public works agency is quoted as saying, "From a macroeconomics or macro-environmental perspective, it just makes sense.
Of course, not everybody is so enthusiastic. To grow corn, diesel tractors are required to plant, fertilize and harvest it with substantial coal-fired electricity needed for the still.
David Pemental, a professor who has done research and a leading opponent of ethanol, says corn ethanol is "unsustainable, subsidized food burning.
He also claims that an acre yielding 7, pounds of corn will produce gallons of ethanol. He estimates gallons of fuel would be needed to Essay on corn ethanol and harvest each acre. That, plus the energy costs of refining it and moving it to filling stations would make it cost prohibitive and a poor way to use agricultural lands.
Others dismiss Pimentel's criticisms. A different study showed that ethanol production yielded 36 per cent more energy than what was needed to produce it. Also Pimentel doesn't take into account the livestock feed and other byproducts that result from ethanol production.
Lavelle argues that "the ethanol industry could be transformed by biotechnology. Researchers," who, she says, can now unlock the sugars found in tough agricultural waste products -- corn husks, rice hulls, saw grass, and wood chips -- which can then be fermented into an alcohol that can fuel vehicles.
This so-called cellulosic, or biomass, ethanol would require less energy to produce and could be manufactured from material that is now burned or buried" p. Federal funds for research and development of cellulosic ethanol would be taxpayer-money well spent.
A more serious criticism is the environmentalists' fear that biodiversity would suffer with large extensions of monoculture. Fauna and flora would be lost in the process. There is also the problem of land use.
Producing ethanol from cellulose in large enough quantities to replace current fuel consumption "would require the additional growth and harvesting of woods and grasses over enormous areas of land. Additional land use of this magnitude would be staggering and contentious" p.
According to Haroon S. Aside from the fact that Kheshgi is invested in the oil industry, this argument, does not consider the use of agricultural waste products as the source or use of the by-products of distilling ethanol.
If the land were still used to grow food, and the wastes were used for ethanol, benefits to the environment would be great.
Some detracters claim the ethanol industry wouldn't even exist if it weren't for federal subsidies and tax breaks that have boosted profits.
The second largest producer of ethanol, Illinois, has six ethanol plants. In these plants produced million gallons of ethanol using million bushels of corn.
Plainly, ethanol is good news to corn growers and government subsidies are well spent. Retooling for Ethanol The problem at this point is not lack of alternative fuel vehicles AFV that can use ethanol.
But they never get any E85 to run them.
Plant starch, corn sugar are used as raw materials for production of ethanol by Zymomonas Mobilis. Zymomonas Mobilis is a gram negative, anaerobic, rod-shaped bacterium. Two fermentation steps are involved in this process. 21 Responses to What are the problems with using corn ethanol for fuel? mygrandkidsfarm says: January 10, at pm I did read your essay and I believe you did a good job of laying out the issues. Aside from all the problems you detailed, my major concern is the perpetuation of the “car culture”. Personal motor vehicles are the. On the other hand, by filling our fuel tanks with cellulosic ethanol instead of gasoline or corn based ethanol may be better for our health and the environment. Cellulosic ethanol provides a number of environmental advantages over conventional fossil fuels—most notably a reduction in greenhouse gas (GHG) emissions.
The availability of E85 is very limited" Brown,p. Gregg Duckett, the public works operations manager in Phoenix, says the problem with E85 is infrastructure. He says there are only about fueling stations nationwide that carry it, even though more than two million vehicles will use it.
And the cost of transporting ethanol makes it average 37 cents higher per gallon than unleaded gasoline Brown, Allison Windham (’13) *This essay is the first installment of a Point-Counterpoint on Ethanol.
Just a few years ago, an outsider observing the U.S. never would have known that the world was running out of petroleum; Hummers roamed the highways, $ per gallon of gasoline was unheard of, and optimism abounded about a potential new source of fuel: corn-based ethanol.
Ethanol: Pros & Cons. With these credits, for things such as DDGS, corn-based ethanol has a positive net energy balance of btu per gallon for btu of energy used. Biodegradable - As ethanol is made with organic materials it is highly biodegradable making spills far . Our depot contains over 15, free essays.
Read our examples to help you be a better writer and earn better grades! Oct 09, · Abengoa Bioenergy and other companies are constructing plants for ethanol made from corn stalks and wheat straw, but the market is saturated already.
Readers discuss an Op-Ed essay . View this term paper on Corn Ethanol the Flawed Argument. This is complimented by Thornton's concise detraction of ethanol this article serves as reinforcement.
May 01, · Ethanol demand will bring inventories of corn to their lowest levels since (a drought year), even though yielded the third-largest corn crop on record.
Iowa may soon become a net corn importer.