The diagram below shows how ethanol fuel is produced from corn

The provided illustration demonstrated the process of producing ethanol fuel from corn.

Overall, the entire process consists of 9 stages including corns undergoing several procedures to be converted into fuel and the final product is afterwards delivered to the gas station.

Initially, corns are harvested in large numbers and stored in warehouses. They are subsequently transported to the milling machine for the grinding stage. After that, the ground corn is then transferred to a big cylindrical tank and heated with water at high temperature for 4 hours. Thereafter the cooking stage, the mixture is then moved to another tank for a 48-hour fermenting process. During the subsequent stage, liquid oil is separated from the initial mixture. The liquidised oil is then undergone purification for about 5-hours to remove any impurities left. The final product is then stored in fuel tanks before eventually delivered to the gas station when necessary.