Ace Ethanol produces 43 million gallons of ethanol per year from 15 million bushels of corn. As a by-product, the company produces dry distillers grain with solubles and wet distillers grain with solubles. Carbon dioxide is also produced as a by-product, and it is sold as dry ice and as a liquid. Distillers grain is a high protein feed that can used for feeding cows and cattle. The amount of corn required to produce ethanol has been reduced because of improved technologies.
Ethanol is blended with gasoline from 5% to 85%. Ethanol blends of upto 10% ethanol with gasoline is used in all gasoline vehicles. Blends above 10% can be used in flexible fuel vehicles only. E10 has a higher vapor pressure than gasoline, and has higher emission of lighter carbons.
E85 ethanol is used in flexible fuel vehicles. The flexible fuel vehicles are built to tolerate the high ethanol content. E85 is made of 15 percent gasoline and 85 percent of ethyl alcohol. Flexible fuel vehicles that run using E85 ethanol emit less carbon monoxide, benzene and 1,3 butadiene.
Increased use of ethanol fuel can help to reduce greenhouse gas emissions.