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The image features a flowchart diagram titled "The Process of Producing Ethanol Fuel from Corn" divided into 7 sequential numbered steps: Step 1 ("Growing and harvesting corn"), showing a corn field and combine harvester, described with "Corn is grown in fields and harvested when it is mature."; Step 2 ("Cleaning and milling"), showing corn kernels processed through a milling machine into powder, described with "The harvested corn is cleaned to remove dirt and other materials, then milled into a fine powder called corn meal."; Step 3 ("Cooking and liquefaction"), showing a heated tank containing liquid, described with "The corn meal is mixed with water and heated. Enzymes are added to break down the starches into simple sugars (liquefaction)."; Step 4 ("Fermentation"), showing a tank, described with "Yeast is added to the mixture, which converts the sugars into ethanol and carbon dioxide (fermentation)."; Step 5 ("Distillation"), showing a connected tank and tall distillation column, described with "The mixture is heated in a distillation column to separate ethanol from water and other by-products."; Step 6 ("Dehydration"), showing horizontal cylindrical equipment with piping, described with "The ethanol is further purified by removing water, which produces anhydrous ethanol (99% pure)."; and Step 7 ("Ethanol fuel"), showing a fuel pump dispenser and a fuel droplet, described with "The final product is ethanol fuel, which can be used as a renewable fuel for vehicles."
Given the complexity of the image, the above description may not be entirely accurate.
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The diagram illustrates the various stages involved in producing ethanol fuel from corn.
First, corn is collected and stored. After that, it is sent to a milling machine, where the corn is processed. The milled corn then goes to the cooking stage. Water is added during cooking, and this process takes about 4 hours.
Next, the cooked mixture is transferred to the fermenting stage. It remains there for approximately 48 hours. After fermentation, the mixture is separated into two parts: a solid by-product and a liquid. The liquid is then sent for further processing.
In the next stage, the liquid is purified to produce ethanol. Finally, the ethanol is stored in a storage area before it is transported to its destination. The process involves both mechanical and chemical stages to turn corn into useful ethanol fuel.
Overall, there are several stages in the production of ethanol, starting with storing corn and ending with transporting the final product. The main stages include milling, cooking, fermenting, separating and purifying the ethanol.
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