6.106. Air at 25°C and 1 atm with a relative humidity of 25% is to be dehumidified in an adsorption column19packed with silica gel. The equilibrium adsorptivity of water on silica gel is given by the expression"X*(kg water/100 kg silica gel) = 12.5 P;0where PH,0 is the partial pressure of water in the gas contacting the silica gel and po is the vaporpressure of water at the system temperature. Air is fed to the column at a rate of 1.50 L/min until thesilica gel is saturated (i.e., until it reaches equilibrium with the feed air), at which point the flow isstopped and the silica gel regenerated.(a) Calculate the minimum amount of silica gel needed in the column if regeneration is to take placeno more frequently than every two hours. State any assumptions you make.(b) Briefly describe this process in terms that a high school student would have no trouble under-standing. (What is the process designed to do, what happens within the column, and why isregeneration of the column packing necessary?)

Part a Assumptions : all water vapor adsorbed in 2 hours Pressure and temperature are constant.…

Answered: 6.106. Air at 25°C and 1 atm with a…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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