Ethanol is an alcohol derived from starch. There are two primary methods for producing ethanol. The first is called dry milling, and the second is called wet milling.
Ethanol comes from plants, and in the U.S., it is primarily made from excess field corn that would otherwise go to waste. The ethanol production process uses only the starch from the corn kernel to create fuel; the leftovers, called distillers grains, are then used for animal feed.
Ethanol is a grain alcohol and can be used in the same way as gasoline. Most gas stations in the United States use a combination of about 10 percent ethanol and 90 percent gasoline, according to the University of Illinois Extension.
Ethanol can corrode plastic, rubber and metal parts in pre-2001 vehicles, according to Forbes. The burning of corn ethanol can also release harmful greenhouse gasses and carcinogens into the air.
Dry grind plants produce ethanol by grinding corn kernels into small particles; adding water, enzymes and ammonia; and putting the mix through a process wherein it is cooked, cooled, introduced to yeast and kept cool during fermentation until the ethanol produced by the fermentation evaporates into
Ethanol has the chemical formula CH3CH2OH and contains carbon, hydrogen and oxygen atoms. The compound is a volatile, flammable liquid that is also known as pure grain alcohol.
According to EthanolHistory.com, evidence from pottery believed to have originated 9,000 years ago suggests that Neolithic people in Northern China discovered ethanol and consumed alcoholic beverages. In the first century A.D., the Greeks and the Arabs discovered distillation, a process to increase
Ethanol is dangerous because it is a highly flammable liquid that can be poisonous with skin contact or ingestion in its pure forms. Ethanol is also the ingredient in alcoholic beverages, and consumption of it can lead to liver disease, heart problems and alcoholism.
An ethanol-free fuel locator is a device, website or app that locates gas stations selling fuel without ethanol additives. Some engines have reduced efficiency or deteriorate when ethanol fuels are used. Ethanol can also leave a residue on valves and parts that hinders performance.
Some of the best ethanol-free fuel locators include Pure-gas.org, BuyRealGas.com and GasBuddy.com. There are drivers who prefer gas without ethanol, but the number of gas stations that offer ethanol-free gas is limited.