Petroleum Engineering Question:
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Solvent used in duo-sol extraction for lube oil upgradation is a mixture of

A. propane & phenol-cresol mixture.
B. methyl ethyl ketone & glycol.
C. phenol & furfural.
D. propane & liquid sulphur dioxide.

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Option A

A

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Pick out the wrong statement about the smoking tendency of various hydrocarbon constituents of kerosene.

A. Smoking tendency of hydrocarbons increases in the order : paraffins → isoparaffins → naphthenes → aromatics.
B. Smoking tendency of paraffin's increases with decrease in its molecular weight.
C. Smoking tendency of naphthenes decreases with its increasing molecular weight & also on addition of double bond.
D. Smoking tendency of aromatics decreases with increase in its molecular weight.

Which of the following fractions of a crude oil will have the maximum gravity API (i.e. °API)?

A. Diesel
B. Gasoline
C. Atmospheric gas oil
D. Vacuum gas oil