⟩ The main use of heavy gas oil produced by the vacuum distillation unit is as a A. blending component for kerosene. B. blending component for petrol. C. feedstock for fluid catalytic cracking unit. D. none of these.
Option C
Option C
During electrical desalting of crude oil, the electrical conductivity of a mixture of crude oil and water (which ranges between 3 to 8% water) __________ with increase in the amount of water. A. decreases B. increases C. remains unchanged D. decreases linearly
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