Petroleum Refinery Engineering
Alkylation

Causes olefins to combine with each other
Converts iso-paraffin into olefin
Converts olefin into paraffin
Causes olefins to combine with iso-paraffins

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

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

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