Petroleum Refinery Engineering
Hydrofining is the most recent and effective method for the

Improvement of viscosity index
Improvement of smoke point
Reduction of breathing loss
Removal of sulphur

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

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

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