⟩ Complete removal of __________ from gasoline is done by Unisol process using caustic soda and methyl alcohol. A. waxes B. mercaptans C. asphalt D. diolefins
Option B
Option B
Straight run naphtha is converted into high octane number petrol (gasoline) by catalytic A. cracking B. polymerisation C. reforming D. isomerisation
The most suitable solvent for deasphalting vacuum residue is A. propane B. methyl ethyl ketone C. doctor's solution D. methanol amine
Dearomatisation of kerosene (by liquid sulphur dioxide extraction) is done to A. increase its smoke point. B. improve its oxidation stability. C. decrease the breathing loss. D. none of these.
Maximum viscosity of tar/PCM/fuel oil for easy and efficient atomisation in conventional burner is __________ centistokes (or 100 Redwood I seconds). A. 5 B. 25 C. 50 D. 100
Thermofer catalytic cracking process is a __________ process. A. fixed bed B. moving bed C. fluidised bed D. non-catalytic
Cetane number of a diesel fuel is the measure of its A. ignition delay B. smoke point C. viscosity D. oxidation stability
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
Paraffins are desirable in lubricating oil, as it has got high A. viscosity B. viscosity index C. smoke point D. pour point
Which is the most ideal feed stock for 'coking' process used for the manufacture of petroleum coke? A. Naphtha B. Vacuum residue C. Light gas oil D. Diesel
Feed for reforming is generally A. naphtha or straight run gasoline. B. reduced crude. C. vacuum gas oil. D. atmospheric gas oil.