Petroleum Refinery Engineering
In catalytic cracking, the

Pressure & temperature is very high
Gasoline obtained has a very low octane number
Gasoline obtained has very high aromatic content
Gasoline obtained has very high amount of gum forming compounds

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Petroleum Refinery Engineering
Petroleum deposits are detected by the.

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

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