Petroleum Refinery Engineering
Solvent deoiling process is used for separating oil and soft wax from hard wax. Methyl iso-butyl ketone and methyl ethyl ketone (MEK) are two commonly used deoiling solvents. Use of former as the deoiling solvent has the advantages of the

Lower solvent dilution ratio
Higher nitration temperature
Elimination of solvent drying facility
All of these

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Petroleum Refinery Engineering
Pick out the correct statement about catalytic polymerisation.

H₂SO₄ polymerisation process gives gasoline rich in unsaturates
Neither A nor B
In H₂SO₄ polymerisation, H₃PO₄ is always used with 2% steam to prevent meta & ortho H₃PO₄ formation, which are inactive
Both A & B

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