Q1 / Ammonia is to be removed from a 12 per cent ammonia-air mixture bycountercurrent scrubbing with water in a packed tower at 293 K so that 98 per cent of theammonia is removed when working at a total pressure of 101.3 kN/m2. If the gas rate is 0.065kmole/m2s of tower cross-section and the liquid rate is 0.095 kmole/m2s, find the necessaryheight of the tower if the absorption coefficient KGa = 0.0015 kmol /m3s(KN/m2) partialpressure difference. The equilibrium data are:kmol NH/kmol water0.020.030.040.050.080,110.16Partial pressure NH:1.52.53.54.56.59.014.0

If the compositions of the gas are given as per cent by volume, at the bottom of the tower are…

Answered: height of the tower if the absorption…

Engineering

Civil Engineering

height of the tower if the absorption coefficient data are:

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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Question

Q1 / Ammonia is to be removed from a 12 per cent ammonia-air mixture by
countercurrent scrubbing with water in a packed tower at 293 K so that 98 per cent of the
ammonia is removed when working at a total pressure of 101.3 kN/m2. If the gas rate is 0.065
kmole/m2s of tower cross-section and the liquid rate is 0.095 kmole/m2s, find the necessary
height of the tower if the absorption coefficient KGa = 0.0015 kmol /m3s(KN/m2) partial
pressure difference. The equilibrium data are:
kmol NH/kmol water
0.02
0.03
0.04
0.05
0.08
0,11
0.16
Partial pressure NH:
1.5
2.5
3.5
4.5
6.5
9.0
14.0

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