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March 2019

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

Petroleum Refinery Engineering /
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 paraffins 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

Pick out the wrong statement about the smoking tendency of various hydrocarbon constituents of kerosene ? Read More »

Petroleum Refinery Engineering

Solvent deoiling process is used for separating oil and soft wax from hard wax. Methyl isobutyl ketone and methyl ethyl ketone (MEK) are two commonly used deoiling solvents. Use of former as the deoiling solvent has the advantages of the____________________?

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

A. Elimination of solvent drying facility
B. Higher nitration temperature
C. Lower solvent dilution ratio
D. All A., B. & C.

Solvent deoiling process is used for separating oil and soft wax from hard wax. Methyl isobutyl ketone and methyl ethyl ketone (MEK) are two commonly used deoiling solvents. Use of former as the deoiling solvent has the advantages of the____________________? Read More »

Petroleum Refinery Engineering