Chemical Engineering - Petroleum Refinery Engineering

6. 

Glycol added to petrol acts as a/an __________ agent.

A. anti-knocking
B. anti-icing
C. anti-gum forming
D. dewaxing

Answer: Option B

Explanation:

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7. 

Catalytic cracking compared to thermal cracking of residue of vacuum distillation of crude oil

A. gives higher yield of petrol.
B. lower octane number of petrol.
C. higher sulphur content in the product.
D. higher gum forming material in petrol.

Answer: Option A

Explanation:

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8. 

Which one is used to determine the colour of petroleum products ?

A. Colour comparator
B. Saybolt chromometer
C. Cleveland apparatus
D. None of these

Answer: Option A

Explanation:

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9. 

Pick out the wrong statement.

A. Iso-paraffin crack faster than n-paraf-fin.
B. Catalytic cracking is endothermic, but the regeneration of catalyst is exothermic.
C. Rate of decomposition of olefins in catalytic cracking is slightly slower than the thermal cracking.
D. None of these.

Answer: Option B

Explanation:

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10. 

Feedstock for the production of biodiesel is

A. herbal plants
B. used vegetable oils
C. LSHS
D. bagasse

Answer: Option B

Explanation:

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