Petroleum Refinery Engineering
LPG when brought to atmospheric pressure & temperature will be a

Liquid lighter than water
Gas heavier than air
Gas lighter than air
Liquid heavier than water

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Petroleum Refinery Engineering
Alkylation

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

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