The diagram below shows how one type of coal is used to produce electricity. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The diagram illustrates the process of generating

electricity

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from a specific type of coal. The entire procedure involves several stages, including mining, crushing, transportation, gasification, cooling, cleaning, and

electricity

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production, before delivering

electricity

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to end users

such

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as households and factories.

Initially

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, coal is extracted from the mine and crushed into smaller pieces to facilitate transport. The crushed coal is

then

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sent to a gasifier, where

heat

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and

gas

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are generated. The produced

gas

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is cooled, during which waste

heat

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is emitted, and the remaining

gas

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undergoes a purification process. After purification, the

gas

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is directed to

gas

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plants, which

also

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release waste

heat

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,

while

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the purified

gas

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is converted into

electricity

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.

This

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electricity

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is

then

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stored in power stations and distributed to households and businesses for usage. The cycle repeats continuously to ensure a consistent supply of

electricity

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to power appliances and factories. Key comparisons include the steps of purification and waste

heat

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emission at both the cooling and

gas

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plant stages, indicating energy losses during the process. The ultimate aim is to ensure that purified

gas

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is used efficiently to meet

electricity

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demand.