Chemical Engineering - Petroleum Refinery Engineering

21. 

Solvent used in the deasphalting process is

A. furfurol
B. phenol
C. propane
D. hexane

Answer: Option C

Explanation:

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22. 

A good lubricant should have high

A. viscosity index
B. volatility
C. pour point
D. none of these

Answer: Option A

Explanation:

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23. 

Complete removal of __________ from gasoline is done by Unisol process using caustic soda and methyl alcohol.

A. waxes
B. mercaptans
C. asphalt
D. diolefins

Answer: Option B

Explanation:

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24. 

The main use of heavy gas oil produced by the vacuum distillation unit is as a

A. blending component for kerosene.
B. blending component for petrol.
C. feedstock for fluid catalytic cracking unit.
D. none of these.

Answer: Option C

Explanation:

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25. 

Stabilisation of gasoline (petrol) means

A. removal of dissolved gases from it.
B. increasing its oxidation stability.
C. improving its lead susceptibility.
D. increasing its vapour pressure.

Answer: Option A

Explanation:

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