Scientists at Iowa State University are working on a process to turn industrial grade ethanol into a food grade product cheaply and efficiently. The goal is to provide another potential product use should demand for fuel additives decline in the future.
The professors are researching how to easily, and cheaply, turn fuel ethanol into food-grade alcohol to be used in beverages, pharmaceuticals and personal care products.
"We will be taking relatively abundant and cheap fuel ethanol, and for a very small amount (of money) adding a lot of value to it," said Jacek Koziel, an assistant professor of agricultural and biosystems engineering.
He said the research is focused on perfecting technologies that purify fuel ethanol, a grain alcohol most often made from corn and used as a gasoline additive. Like beverage alcohol, fuel ethanol is yeast-fermented and then distilled. However, it has many more impurities that must be removed, Koziel said.
"We are trying to fine tune, so to speak, the process of alcohol purification," he said.
Why find another use for ethanol at a time when demand for the fuel has skyrocketed?
Because while the demand for fuel ethanol could wane if the automotive industry embraces other technology, "the demand for liquor and mouthwashes and cough syrups will always be there," said Hans van Leeuwen, a civil, construction and environmental engineering professor who is working with Koziel on the project
"We're really just looking at a process improvement here that will save a lot of money," said van Leeuwen, who also serves as vice president of Cedar Rapids-based MellO3z, a company that has created a process for purifying alcoholic beverages.
Monte Shaw, a spokesman for the Iowa Renewable Fuels Association, said the future of food-grade alcohol produced from fuel ethanol depends on its profitability. Right now, ethanol used in gasoline blends is in demand, but as more plants are built and production climbs, producers could take advantage of extra capacity and turn food-grade ethanol into a premium business, he said.
The research has already yielded enough product for a "taste test". We used to call those "parties" when I was in college, but hey. Now if you can drink it or fuel your car with it, will it encourage drinking and driving? Or will MPG now just mean Martinis Per Gallon?
