Petroleum Refinery Engineering
Petroleum deposits are detected by the.

Age & nature of rocks inside the crust of the earth
All of these
Oil seepage at the surface of the earth
Measuremet of density, elasticity and magnetic & electric properties of the rock in the crust of the earth

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Petroleum Refinery Engineering
Polymerisation

Causes aromatics to combine with each other
Is aimed at producing lubricating oil
Produces i-octane from cracked gases containing i-butane and butene
Causes olefins to combine with each other

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