The provided diagram depicts the process of manufacturing ethanol fuel from corn.
Overall, the process involves nine steps in three main stages, namely preparation, production and packaging, in which the processing stage accounts for fifty two hours. Moreover, the process commences with harvesting corn and finalizes when the products are delivered to the gas station.
At the preparation stage of the process, corn is harvested and then stored in the barn. The crops, subsequently, were turned into flour by the milling machine.
The processing stage begins when the flour is taken four hours to cook with the addition of water and then the mixture experiences the fermentation process, which takes two days to be fermented. After that, it is separated into liquid form and solid by-product. Subsequently, while the solid form is taken out, the liquid is purified to produce ethanol fuel. At the last stage, the product will be loaded into a van and shipped to the gas station.