Related Questions

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
In catalytic cracking process, olefins crack __________ times faster than in thermal cracking process.
A 100
B 200-300
C 1000-10000
D 10
Which of the following resistances is not involved in a gas phase catalytic (gas- solid) reaction?
A Ash resistance
B Gas film and pore surface diffusion resistances for reactants
C Surface phenomenon resistance
D Gas film and pore surface diffusion resistances for products
After the increase of price of oil by 40%, a family decided to reduce its oil consumption so that the expenditure for oil goes up by 26% only. If the total consumption of oil before the price rise was 10 kg per month, then what is the current consumption of oil per month (in kg)?
A 8
B 8.50
C 9
D None of these
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
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
Overall rate of reaction in a heterogenous catalytic reaction depends upon the mass and energy transfer from the fluid to solid surface and its rate of reaction is usually __________ the concentration of catalyst, if it does not entail a chain mechanism.
A Proportional to
B Independent of
C Inversely proportional to
D Proportional to the square of
Natural gas recovered along with crude oil from oil wells is called wet natural gas which has a higher __________ compared to the dry natural gas.
A Unsaturated hydrocarbon content
B Calorific value
C Quantity of propane
D Quantity of butane
In a refinery petroleum crude is fractionated into gas fraction, light ends, intermediate distillates, heavy distillates, residues and by products. The group of products including gas oil, diesel oil and heavy fuel oil belongs to the fraction
A Heavy distillates
B Intermediate distillates
C Light ends
D Residues
Thermofer catalytic cracking process is a __________ process.
A Fixed bed
B Moving bed
C Fluidised bed
D Non-catalytic

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