A. 3-4
B. 8-10
C. 15-17
D. 20-25
Related Mcqs:
- Ammonia synthesis gas is produced from natural gas by___________________?
A. Thermal cracking
B. Steam reforming
C. Partial oxidation
D. Hydrogenation - C/H ratio (by weight) of naphtha used in nitrogenous fertiliser making is about_________________?
A. 2
B. 6
C. 13
D. 20 - A fertiliser plant is classified as a gas based fertiliser plant, when it uses ______________ gas as a source of hydrogen for the manufacture of ammonia?
A. Coke oven
B. Producer
C. Natural
D. Coal - Heating of coke, sand & phosphate rock in an electric furnace is done for the manufacture of_________________?
A. Phosphoric acid
B. Superphosphate
C. Phosphorous
D. Triple superphosphate - The concentration (weight %) of nitric acid produced by the oxidation of ammonia and absorption of nitrogen oxides with water is about ____________ percent?
A. 60
B. 30
C. 95
D. 100 - 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 - Steam reforming of naphtha is a source of hydrogen production for nitrogenous 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 - Which of the following is not a commercially used feed-stock for the production of ammonia synthesis gas ?
A. Water
B. Naphtha
C. Tar
D. Coal/coke oven gas - CO2 present in reformed gas (obtained by steam reforming of naphtha) is removed by absorbing in _________________?
A. Mono-ethanolamine (MEA)
B. Slaked lime
C. Ammoniacal liquor
D. Methyl-Ethyl Ketone (MEK) - Gas based fertiliser plants use_________________?
A. Natural gas as a source of hydrogen
B. Natural gas as heating medium
C. Coal gas as a source of hydrogen
D. Coal gas as heating medium
