Tetraethyl lead is added to the petrol to increase its octane number, because its octane number is
Options
A. more than 100
B. round about 100
C. between 50 and 100
D. less than 25
Correct Answer
more than 100
Petroleum Refinery Engineering problems
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1. Higher boiling fractions like atmospheric residue is distilled under vacuum at low temperature because at high temperature, there is a tendency of the predominance of
Correct Answer: readily oxidisable and form carbonaceous sludge.
8. Salt content (measured as sodium chloride) in electrically desalted crude oil comes down to a level of about __________ ptb (pounds per thousand barrel).
10. Char value of Kerosene is the amount of charred oil deposition on the wick obtained after burning it in a standard wick lamp at a standard rate for 24 hours. Char value of a good quality kerosene should be less than __________ mg/kg of kerosene.