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 temperature, gasoline yield decreases for a given conversion
All of these
With increase in the reactor pressure, octane number of gasoline decreases

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Petroleum Refinery Engineering
The order of preference for feedstock to a catalytic reformer is

Coking naphtha - virgin naphtha - catalytic naphtha
Virgin naphtha - catalytic naphtha - coking naphtha
Virgin naphtha - coking naphtha - catalytic naphtha
Catalytic naphtha - coking naphtha - virgin naphtha

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