Petroleum Refinery Engineering
Pick out the correct statement pertaining to catalytic cracking.

Percentage conversion increases with increase in the catalyst to oil ratio
With increase in the reactor pressure, octane number of gasoline decreases
All of these
With increase in the reactor temperature, gasoline yield decreases for a given conversion

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Petroleum Refinery Engineering
Pick out the correct statement about catalytic polymerisation.

H₂SO₄ polymerisation process gives gasoline rich in unsaturates
In H₂SO₄ polymerisation, H₃PO₄ is always used with 2% steam to prevent meta & ortho H₃PO₄ formation, which are inactive
Both A & B
Neither A nor B

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Petroleum Refinery Engineering
Aniline point is the temperature at which

Equal weight of aniline & the test sample are completely miscible
Equal volume of aniline & the test sample are completely miscible
Aniline vaporises
Equal weight of diesel & the aniline are completely miscible

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