The diagram illustrates the process of producing ethanol fuel from corn. Overall, the process consists of several stages, beginning with the collection and storage of corn and ending with the transportation of the purified ethanol. It involves both mechanical and chemical procedures over a period of days.
Initially, corn is harvested and stored. It is then sent to a milling machine, where it is ground into smaller particles. Following this, the milled corn is cooked for four hours, and during this stage, water is added to the mixture to facilitate the cooking process.
Once the cooking is complete, the mixture undergoes fermentation for 48 hours. After being fermented, the substance is separated into two components: a solid by-product and a liquid. The solid part is removed, while the liquid is used in the next step.
The liquid is then purified to extract ethanol, a process that takes five hours. After purification, the ethanol fuel is stored before being transported for commercial or industrial use.