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Increase in pressure during catalytic cracking process ____________ octane number.(a) Decreases(b) Increases(c) Doesn’t effect(d) Remains sameI had been asked this question during a job interview.My question is taken from Natural Products topic in division Natural Products of Chemical Technology

Answer»

Correct ANSWER is (a) DECREASES

Explanation: Increase in pressure during catalytic cracking process; decreases unsaturation and hence octane NUMBER decreases, which results in increase in coke PRODUCTION though reactor throughput ALSO increases.



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