H2S is scrubbed from refinery gases by absorption using ________________________?

Related Mcqs:

1. Presence of H2S in raw water (to be chlorinated) results in the_____________________?

   A. Reduced softening capacity of zeolite B. Increased dosage of chlorine to provide a disinfecting residual in the water C. Easy removal of its hardness D. None of these...

2. The catalyst used in the production of elemental sulphur from H2S (by oxidation-reduction) is _____________________?

   A. Alumina B. Silica gel C. Platinum D. Nickel...

3. Naphthalene is removed from coke oven gas by ________________________?

   A. Adsorbing on palladium B. Absorbing in ethanolamine C. Scrubbing with wash oil D. Passing it through electrostatic precipitator...

4. Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of ____________________?

   A. Nitric acid B. Sulphuric acid C. Ammonium sulphate D. Hydrochloric acid...

5. During the absorption of HCl gas in water (to produce liquid HCl), the gas is kept above dew point to__________________?

   A. Increase the rate of absorption B. Avoid corrosion C. Reduce the cooling water circulation rate D. None of these...

6. Absorption of SO3 in 97% H2SO4 is_______________?

   A. Exothermic B. Endothermic C. Not possible D. None of these...

7. Favourable conditions for the liquefaction of gases in general are _____________________?

   A. High pressure & low temperature B. Low pressure & high temperature C. High pressure & high temperature D. Low pressure & low temperature...

8. Which of the following fuel gases contains maximum amount of carbon monoxide ?

   A. Coke oven gas B. Water gas C. Blast furnace gas D. L.D. converter gas...

9. Liquefaction of gases cannot be done by___________________?

   A. Exchange of heat with colder stream B. Adiabatic expansion through a throttle valve (Joule-Thomson expansion) C. Merely compressing it beyond critical pressure D. Adiabatic expansion against a piston or in a turbine...

10. Inversion of sucrose produces_____________________?

    A. Fructose B. Glucose C. Both A. & B. D. Neither A. nor B....