A. Elimination of solvent drying facility
B. Higher nitration temperature
C. Lower solvent dilution ratio
D. All A., B. & C.
Related Mcqs:
- Deoiling is the process of removal of oil from wax. It is done by the _______________ process?
A. Solvent extraction
B. Sweating
C. Resettling
D. All A., B. & C. - Deoiling of wax is done by its _________________?
A. Heating
B. Cooling
C. Solvent extraction
D. Both B. & C. - Straight run petrol as compared to methyl/ethyl alcohol has_________________?
A. Lower calorific value
B. Lower octane number
C. Higher specific gravity
D. Higher ignition temperature - ‘Solvent naphtha’ used mostly as a solvent in paints and perfumery is produced by the _________________ of virgin naphtha into small boiling range cuts?
A. Steam reforming
B. Distillation
C. Desulphurisation
D. None of these - An upper limit of oil content is limited to about ______________ percent for achieving efficient and satisfactory level of wax sweating?
A. 5
B. 15
C. 40
D. 60 - Pick out the undesirable property for a solvent meant for dewaxing of lube oil ?
A. Complete miscibility with oil
B. High solubility of wax in the solvent
C. Both A. and B.
D. Neither A. nor B. - Solvent used in duo-sol extraction for lube oil upgradation is a mixture of______________?
A. Propane & phenol-cresol mixture
B. Methyl ethyl ketone & glycol
C. Phenol & furfural
D. Propane & liquid sulphur dioxide - Complete removal of _____________ from gasoline is done by Unisol process using caustic soda and methyl alcohol?
A. Waxes
B. Mercaptans
C. Asphalt
D. Diolefins - The coking process normally mostly used in Indian oil refineries is the ____________________ coking process ?
A. Delayed
B. Flexi
C. Fluid
D. Contact - Crude oil produced by Indian oil fields are predominantly _______________ in nature?
A. Paraffinic
B. Naphthenic
C. Asphaltic
D. Mixed base
