Quinoline is a/an ________________ compound ?
Quinoline is a/an ________________ compound ?
A. Sulphur
B. Nitrogen
C. Oxygen
D. None of these
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Phenols are added in gasoline to____________________?
Phenols are added in gasoline to____________________?A. Improve the octane number
B. Act as an antioxidant
C. Reduce its viscosity
D. Increase its pour pointMost widely used solvent for dewaxing is__________________?
Most widely used solvent for dewaxing is__________________?A. Methyl-ethyl-ketone (MEK)
B. Naphtha
C. Petroleum ether
D. Sodium plumbiteThe solvent used in Barisol dewaxing process is_____________________?
The solvent used in Barisol dewaxing process is_____________________?A. Hexane
B. Furfural
C. Benzol and ethylene dichloride
D. Methyl ethyl ketone (MEK)Crude oil is subjected to vacuum distillation in the last stage, because_________________?
Crude oil is subjected to vacuum distillation in the last stage, because_________________?A. High boiling point products like heavy fuel oil & lubricating oils are heat sensitive and may
decompose
B. Lighter/low boiling products are prone to thermal decomposition
C. High purity products can be obtained thereby
D. None of theseMaximum use of petroleum coke is in__________________?
Maximum use of petroleum coke is in__________________?A. Adsorption refining operation
B. Fuel gas manufacture
C. Carbon electrode manufacture
D. Iron ore reductionHigher boiling fractions like atmospheric residue is distilled under vacuum at low temperature because at high temperature, there is a tendency of the predominance of ____________________?
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 ____________________?A. Thermal cracking
B. Gum formation
C. Coking
D. Discoloration