Chemical Engineering - Petroleum Refinery Engineering

11. 

Smoke point of a test sample of kerosene is found to be 15 mm. On removal of __________ from it, the smoke point rises to 25 mm.

A. n-paraffins
B. olefins
C. aromatics
D. none of these

Answer: Option C

Explanation:

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12. 

__________ is not an important refinery process for upgrading the quality of lubricating oil.

A. Deoiling
B. Solvent refinning
C. Clay treatment
D. Hydrotreatment

Answer: Option A

Explanation:

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13. 

Pick out the undesirable property for a solvent meant for dewaxing of lube oil.

A. Complete miscibility with oil.
B. High solubility of wax in the solvent.
C. Both (a) and (b).
D. Neither (a) nor (b).

Answer: Option C

Explanation:

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14. 

Which of the following is used as a catalyst in fluidised bed catalytic cracking ?

A. Silica-magnesia
B. Silica-alumina
C. Bentonite clays
D. All (a), (b) and (c)

Answer: Option D

Explanation:

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15. 

Casing head gasoline is the liquid

A. butane.
B. propane.
C. natural gas.
D. gasoline separated from wet natural gas by compression.

Answer: Option A

Explanation:

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