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.Management Sciences
Category: Petroleum Refinery Engineering
Good quality kerosene should have__________________?
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A. Low smoke point
B. High smoke point
C. High aromatics content
D. Low paraffins content
_____________ chloride present in crude petroleum as impurity is the most prolific producer of HCl during distillation?
A. Magnesium
B. Potassium
C. Calcium
D. Sodium
The most widely used crude topping column in refineries is the ______________ column?
A. Bubble-cap
B. Packed bed
C. Fluidised bed
D. Perforated plate
Extractor temperature is maintained at -20°C in Edeleanu process to reduce the ______________ of kerosene?
A. Smoke point
B. Paraffins
C. Aromatics
D. Naphthenes
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
Deoiling of wax is done by its _________________?
A. Heating
B. Cooling
C. Solvent extraction
D. Both B. & C.
Presence of aromatics in __________________?
A. Diesel increases its cetane number
B. Kerosene increases its smoke point
C. Petrol increases its octane number
D. All A., B. and C.
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