Which of the following processes is not an example of adsorption applied to gaseous separations ?
Correct answer: D. Decolouration of yellow glycerine
- A. Recovery of valuable solvent vapors from dilute mixture with air and other gases
- B. Dehumidification of air and gas
- C. Removal of objectionable odour and impurities from industrial gases
- D. Decolouration of yellow glycerine
Explanation
Decolouration of yellow glycerine is adsorption from a liquid, commonly using activated carbon, rather than separation from a gas. Solvent-vapour recovery, gas dehumidification, and odour removal are gaseous applications.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
Practise Mass Transfer Operations
669 free Mass Transfer Operations MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Mass Transfer Operations questions
The Knudsen diffusivity is proportional to (where, T = absolute temperature) ______________________?
For the flow of gases through a capillary, with increase in temperature, the permeability __________________ as per Knudsen law?
Moisture content of a substance when at equilibrium with a given partial pressure of the vapour is called the _______________ moisture?
To remove all the moisture from a wet solid it requires exposure to _____________ air?
For the gas absorption, the height of a transfer unit, based on the gas phase is given by (G: superficial molar gas velocity, L: superficial molar liquid velocity, FG: mass transfer co-efficient, moles/m2, a: interfacial area per unit volume of tower) ?
Perforated plate towers are unique for solvent extraction because, they provide_____________________?