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Politics : PRESIDENT GEORGE W. BUSH -- Ignore unavailable to you. Want to Upgrade?


To: Ish who wrote (246144)4/8/2002 6:16:51 PM
From: Zoltan!  Read Replies (1) | Respond to of 769670
 
>>Let's say it has 10% less energy and you are using a 10% blend. That would mean your mileage would be reduced by 1% while you are using 10% less Iraqi oil.

The difference is far more than 10%. Ethanol is weak on a comparable volume basis.

>>Which ethanol doesn't. It reduces pollution because you get a better burn on the gas which helps to offset the lower energy of ethanol.

Actually, I think that it does form formaldehyde. Anyway, ethanol is unnecessary in modern fuel-injected engines for clean burn on startup. And since it net costs energy to produce, ethanol only increases demand for foreign oil, since ethanol production is not powered by ethanol. Which would happen if ethanol wasn't economically inefficient.

>>BTW, next Memorial Day when the cars are going 200 miles per hour at the Indy 500, they are running 100% corn alcohol. No gas at all.

Absolutely wrong. Ethanol hasn't the energy. Methanol is what powers Indy cars.

>>That's a blessing. Condensation in tanks used to put water in gas which caused clogged fuel lines and frozen fuel lines in cold areas. The alcohol absorbs the water, takes it through the filter, and it gets turned to steam in your engine.

Not so. It cannot be piped because as it absorbs water from the air it becomes massively corrosive.

>>Nope, it does cost more to produce than gasoline but it's just a big version of a still like the moon shiners use. You can use corn cobs to distill the alcohol off the mash and feed the left over mash to the hogs.

Yes, it does cost more energy to produce ethanol than it provides. Otherwise it wouldn't need the massive subsidies. Brazil showed us that:

ETHANOL SUBSIDIES
Since 1980 when I chaired a scientific committee on ethanol technology for the U.S. Department of Energy, I have continued investigating the ethanol science and technology. Corn grown for ethanol production uses the same land utilized for food and feed production. As with all crop production, large quantities of fossil energy are expended for mechanization, fertilizers, pesticides, and transportation. In addition to the energy input to raise the corn, the large energy inputs are required to convert the 8% ethanol in the original fermentation product into 99% ethanol fuel. Currently the million of gallons of ethanol produced at enormous costs are only sufficient to fuel only 1% of U.S. automobiles! Overlooked by the public are the many millions of dollars of taxpayer money that is used to subsidize ethanol production. Unfortunately, farmers get little benefit from ethanol production, less than 1¢ per bushel. The real beneficiaries are the large ethanol processors (more than 70¢ per bushel). If the total fossil energy inputs for producing the corn grain and the fermentation/distillation are included, about 70% more fossil energy is required to produce 1 gallon of ethanol than the energy that actually is in the ethanol. Ethanol production in addition, contributes to global warming and air and water pollution. In summary, numerous studies have confirmed that ethanol production does not enhance energy security, is not a renewable energy source, is not an economical fuel, and does not insure clean air. We can learn a lesson from Brazil, which was once the largest producer of ethanol in the world. When the Brazilian government stopped its costly ethanol subsidies, the producers of ethanol who were in the past making millions of dollars stopped producing ethanol!

David Pimentel
Professor
College of Agriculture and Life Sciences
Cornell University
147 N. Sunset Dr.
Ithaca, NY 14850
Tel. 607-272-2668
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