Related Questions

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
Which of the following is used as a catalyst in fluidised bed catalytic cracking?
A Silica-magnesia
B Silica-alumina
C Bentonite clays
D All of the above
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
Brass parts with high residual tensile stress at the surface are susceptible to season cracking (i.e. spontaneous cracking occuring on exposure to atmospheric corrosion), if its zinc percentage is more than
A 5
B 10
C 20
D 35
The catalytic cracking of heavier petroleum fraction is done to produce mainly
A Gasoline
B Asphalt
C Diesel oil
D Tar
Octane number of gasoline produced by two stage fluidised catalytic cracking process is
A 80
B 87
C 92
D 97
__________ catalytic reaction is involved in the thermal cracking of gas oil.
A Homogeneous
B Homogeneous non
C Heterogeneous
D Heterogeneous non
In the fluid catalytic cracker (FCC), the cracking reaction is __________ (i) and the regeneration is ____________ (ii)
A (i) exothermic (ii) endothermic
B (i) exothermic (ii) exothermic
C (i) endothermic (ii) enodthermic
D (i) endothermic (ii) exothermic

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