The diagram below shows how ethanol fuel is produced from corn. Summarise the information by selecting and reporting the main features and make comparisons where relevant.

The diagram gives information on the production of

ethanol

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fuel from

corn

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, illustrating how the

corn

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passes through a series of stages to produce

ethanol

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fuel.

Overall

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, it is evident that the process is a linear system comprising several key stages, beginning with the transportation of the

corn

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to the plant, and ending with the transportation of

ethanol

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.

Initially

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, the

corn

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is transported to the plant, and

then

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it is stored in the tanks before being milled by specialised facilities. Afterwards, the milled

corn

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is mixed with the water and cooked for four hours.

Subsequently

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, the cooked

corn

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is fermented for 48 hours before being separated into the liquid and the solid by-product. In the next step, the liquid is purified to eliminate impurities from the

ethanol

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for five hours.

Thereafter

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, the purified

ethanol

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is stored in specialised tanks.

Finally

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, the final product is transported to the fuel stations, being it already to be used.