A. Silica gel
B. Diatomaceous earth
C. Basalt
D. Bog iron (i.e., moist ferric hydroxide)
Related Mcqs:
- Which of the following fertilisers is produced in the by-products recovery (from coke oven gas) plant attached to an integrated steel plant ?
A. Ammonium sulphate
B. Ammonium nitrate
C. Ammonium phosphate
D. None of these - Coke oven gas is stripped of its H2S and mercaptans content by_________________?
A. Absorption in wash oil
B. Adsorption on bog iron bed
C. Bubbling it through dilute sulphuric acid
D. Adsorption on silica gel - Temperature of coke oven gas just before entering into saturator (for recovery of NH3) is about ______________ °C?
A. 30
B. 65
C. 120
D. 180 - Removal of hydrogen from coke oven gas ___________________?
A. Increases its calorific value
B. Decreases its calorific value
C. Does not alter its calorific value
D. Is not possible on commercial scale - Width of the coke oven towards coke side is slightly more than that on pusher side to____________________?
A. Facilitate easy discharging of coke as it swells during carbonisation
B. Facilitate uniform heating of the oven
C. Increase the output of the coke
D. None of these - Blast furnace gas compared to coke oven gas has_________________?
A. Lower ignition temperature
B. Narrower limit of inflammability
C. Higher calorific value
D. Lower theoretical flame temperature - Coke oven gas is a better fuel than blast furnace gas, because of its higher________________?
A. Calorific value, cleanliness and relatively low distribution cost (due to its low specific gravity)
B. Adiabatic flame temperature
C. Heat release rate (thus requiring smaller combustion chamber)
D. All A., B. and C. - Coke oven gas compared to blast furnace gas is________________?
A. More explosive and inflammable
B. Less poisonous
C. Lighter
D. All A., B. and C. - By-products recovery process from coal carbonisation is termed as direct, indirect and semi direct process depending upon the method of recovery of_______________?
A. Tar
B. Benzol
C. Ammonia
D. None of these - Naphthalene recovered from coke oven gas is used___________________?
A. As moisture proof coating on fibres
B. As moth balls (insecticides)
C. As a fuel in furnaces
D. For making electrodes
