The diagram shows the process of producing ethanol fuel from corn kernels, outlining the main stages from storing the raw material to transporting the final product to gas stations.
Overall, the procedure includes several connected steps, beginning with storing and milling the corn and ending with purifying the ethanol and delivering it to gas stations. Most stages involve the material being milled, mixed, fermented, separated, and finally purified.
First, the corn is grown, is harvested, and is stored in silos. Next, it is transported to a milling machine, where it is milled into fine powder. After that, water is mixed with the powder to form a liquid mixture. This mixture is cooked for four hours in a cooking unit. Following this, it is fermented in a fermentation tank for about 48 hours.
Subsequently, the fermented material is separated into liquid ethanol and a solid by-product. The liquid part then is purified for five hours in a purification system. Once this stage is complete, the ethanol is stored before being delivered. Finally, the finished ethanol fuel is transported to gas stations.