Chemical Engineering - Petroleum Refinery Engineering

1. 

Which of the following reactions is undesirable in the production of catalytically reformed gasoline ?

A. Dehydrogenation of naphthene
B. Dehydrogenation of lower paraffins
C. Dehydrocyclisation of higher paraffins
D. Isomerisation of paraffins

Answer: Option B

Explanation:

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2. 

Good quality kerosene should have

A. low smoke point.
B. high smoke point.
C. high aromatics content.
D. low paraffins content.

Answer: Option B

Explanation:

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3. 

The most suitable solvent for deasphalting vacuum residue is

A. propane
B. methyl ethyl ketone
C. doctor's solution
D. methanol amine

Answer: Option B

Explanation:

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4. 

Paraffins are desirable in lubricating oil, as it has got high

A. viscosity
B. viscosity index
C. smoke point
D. pour point

Answer: Option C

Explanation:

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5. 

Cetane number of a diesel fuel is the measure of its

A. ignition delay
B. smoke point
C. viscosity
D. oxidation stability

Answer: Option A

Explanation:

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