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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Petroleum Refinery Engineering
Asphalts are

All of these
Desirable in catalytic cracking feedstock, because they produce coke
. Low molecular weight & low boiling point compounds present in petroleum
Readily oxidisable and form carbonaceous sludge

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