A. Comparatively higher pressure drop
B. High cost of the high pressure vessel used for the reactor
C. Higher pumping cost
D. Chances of entrainment and disturbance of catalyst bed
Related Mcqs:
- During nitric acid manufacture, catalytic oxidation of ammonia at 800°C in presence of platinum catalyst produces nitrogen oxide. Conversion of NH3 to NO is about ______________ percent?
A. 38
B. 68
C. 82
D. 98 - Promoter used in NH3 synthesis catalyst is__________________?
A. K2O
B. SiO3
C. V2O5
D. U2O3 - Catalytic ammonia synthesis reaction as in Haber’s process is_________________?
A. Endothermic
B. Exothermic
C. Irreversible
D. None of these - Which is a catalyst promoter used in catalytic ammonia synthesis reaction ?
A. Al2O3
B. Cr2O3
C. K2O
D. MnO - In ammonia synthesis (N2 + 3H2 = 2NH3), there is a decrease in total volume, hence to get high equilibrium conversion, the reaction should be carried out at________________?
A. Low pressure
B. High pressure
C. Very high temperature
D. Atmospheric pressure; as the pressure has no effect on conversion - ____________ catalyst is used in the production of urea from CO2 and NH3?
A. Vanadium pentoxide
B. No
C. Alumina
D. Nickel - An increase in the NH3/CO2 ratio in urea manufacture results in__________________?
A. Increased degree of conversion of CO2 to urea
B. Decreased degree of conversion of NH3 to urea
C. Decreased yield of urea
D. Decreased specific volume of molten mass - Catalyst used in the manufacture of NH3 by Haber’s process is finely divided________________?
A. Nickel
B. Iron
C. Vanadium pentoxide
D. Alumina - Formation of ammonium carbamate by reaction of NH3 with CO2 is a/an ______________ reaction?
A. Catalytic
B. Exothermic
C. Endothermic
D. Reversible - Ammonia synthesis gas is produced from natural gas by___________________?
A. Thermal cracking
B. Steam reforming
C. Partial oxidation
D. Hydrogenation
