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Chemical Engineering - Petroleum Refinery Engineering

Exercise : Petroleum Refinery Engineering - Section 3
11.
In hydrofining catalytic desulphurisation process for sweetening of petroleum products, use of hydrogen
enhances the desulphurisation process.
minimises coke formation.
both (a) and (b).
neither (a) nor (b).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
The yield of straight run LPG from crude oil is about __________ weight percent.
20-25
1-1.5
10-15
0.1-0.2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
Deoiling is the process of removal of oil from wax. It is done by the __________ process.
solvent extraction
sweating
resettling
all (a), (b) & (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
Smoke volatility index is equal to smoke point plus
0.42 x(% distilled at 204°C)
5 mm
0.84 x (% distilled at 204°C)
10 mm. approximately
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
Mercaptans are added to liquefied petroleum gas (LPG) to
reduce its cost.
narrow down its explosion limit.
assist in checking its leakage from cylinder.
increase its calorific value.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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