Related Questions

'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
Steam reforming of naphtha is a source of hydrogen production for nitrogeneous fertiliser industry. What is the usual ratio of steam to carbon maintained in the process of steam reforming of naphtha?
A 1.5:1
B 3.5:1
C 10:1
D 15:1
Furfural solvent extraction is used for upgrading (by dissolving aromatics)
A Naphtha
B Lubricating oils
C Wax
D Cracking feedstock
Selectivity of the solvent used in solvent extraction should be
A 1
B > 1
C 0
Solvent extraction is the terminology applied to the liquid-liquid extraction, which is preferred for the separation of the components of liquids, when
A Extracting solvent is cheaply & abundantly available
B One of the liquid components is heat sensitive
C Viscosity of liquid components is very high
D One of the liquid components has very high affinity towards the solvent
In petroleum refining, the process used for conversion of hydrocarbons to aromatics is
A Catalytic cracking
B Catalytic reforming
C Hydrotreating
D Alkylation
Solvent deoiling process is used for separating oil and soft wax from hard wax. Methyl iso-butyl ketone and methyl ethyl ketone (MEK) are two commonly used deoiling solvents. Use of former as the deoiling solvent has the advantages of the
A Elimination of solvent drying facility
B Higher nitration temperature
C Lower solvent dilution ratio
D All of the above
Steam reforming of naphtha produces ammonia synthesis gas. This is a/an __________ process.
A Autocatalytic
B Endothermic
C Exothermic
D Non-catalytic
Degree of freedom for leaching and solvent extraction process is
A 1
B 3
C 0
D 2
Presence of predominantly large quantity of aromatics (polynuclear) is not desirable in aviation fuel, because it has
A High pour point and low smoke point
B Low viscosity index
C High self-ingnition temperature
D All of the above

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