Related Questions

Octane number of gasoline produced by two stage fluidised catalytic cracking process is
A 80
B 87
C 92
D 97
In catalytic cracking process, olefins crack __________ times faster than in thermal cracking process.
A 100
B 200-300
C 1000-10000
D 10
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
Which is the most effective catalyst used in catalytic cracking of petroleum products?
A Iron oxide
B Nickel
C Vanadium pentoxide
D Zeolite
Catalyst used in the catalytic cracking is
A Silica-alumina
B Silica gel
C Vanadium pentoxide
D Nickel
Pressure drop in a fluidised bed reactor is __________ that in a similar packed bed reactor.
A Less than
B More than
C Same as
D None of these
Slugging occurs in a fluidised bed, if the bed is
A Narrow
B Deep
C Both A & B
D Neither A nor B
Catalytic action in a catalytic chemical reaction follows from the ability of catalyst to change the
A Activation energy
B Equilibrium constant
C Heat of reaction
D None of these
Which of the following is not applicable to fluidised bed combustion of coal?
A It can not burn low grade coal
B It achieves higher fuel combustion efficiency
C Less heat transfer surface area is required in boilers
D None of these
The velocity at which individual particles from a fluidised bed are carried away by the fluid passing through it, is defined as the
A Minimum fluidisation velocity
B Terminal velocity
C Elutriation velocity
D Superficial velocity

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