Chemical Engineering - Petroleum Refinery Engineering

46. 

Straight run naphtha is converted into high octane number petrol (gasoline) by catalytic

A. cracking
B. polymerisation
C. reforming
D. isomerisation

Answer: Option C

Explanation:

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47. 

During electrical desalting of crude oil, the electrical conductivity of a mixture of crude oil and water (which ranges between 3 to 8% water) __________ with increase in the amount of water.

A. decreases
B. increases
C. remains unchanged
D. decreases linearly

Answer: Option B

Explanation:

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48. 

Dearomatisation of kerosene (by liquid sulphur dioxide extraction) is done to

A. increase its smoke point.
B. improve its oxidation stability.
C. decrease the breathing loss.
D. none of these.

Answer: Option B

Explanation:

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