Which process is used to produce coal oven gas?
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A.
Fractional distillation
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B.
Electrolysis
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C.
Destructive distillation of coal
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D.
Steam reforming
Correct Answer:
C. Destructive distillation of coal
Explanation:
Coal oven gas is manufactured through the destructive distillation of coal, a process that involves heating coal to extremely high temperatures in the absence of air. This thermal decomposition breaks down the complex organic structures within the coal, releasing a mixture of gases including hydrogen, methane, and carbon monoxide. Unlike fractional distillation, which separates substances based on boiling points, or electrolysis, which uses electricity to drive chemical changes, destructive distillation chemically transforms the solid coal into coke, coal tar, and the resulting gaseous fuel.
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