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What happens in the stabilizer of fixed-bed catalytic cracking?

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What happens in the stabilizer of fixed-bed catalytic cracking?

(a) Coke is obtained in it

(b) Coal gas is formed in it

(c) Butane is formed

(d) Gasoline is recovered

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This intriguing question originated from Cracking topic in chapter Fuels and Combustion of Engineering Chemistry II

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The correct answer is (d) Gasoline is recovered

The explanation is: The condensed vapours of the catalytic system are send to the stabilizer, where the dissolved gases are removed and gasoline is recovered. The light gases produced in cracking are no longer allowed to escape into the air.

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