A gas feed at a rate of 100 kmol/hr containing 90% air and 10% acetone enters the absorber fill column. The column has a cross-sectional area of 0.2 m2 and operates at 20°C and 101.32 kPa. The stuffing used is the 1 in. intalox saddle type. The absorption process can remove 95% of the acetone present in the air. Under these operating conditions, the total solute mass transfer coefficient, Kya = 9.90 × 10−2 kmol m3/s. The acetone-water equilibrium data under these conditions are: (on picture) If Ls′ /Gs′ = 1.25 × (Ls′ /Gs′ )min, calculate: a. How many moles of acetone are carried with the output of the absorbent liquid. b. Filling height, in m c. Theoretical plate equivalent height (HETP), in m

Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
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A gas feed at a rate of 100 kmol/hr containing 90% air and 10% acetone enters the absorber fill column. The column has a cross-sectional area of 0.2 m2 and operates at 20°C and 101.32 kPa. The stuffing used is the 1 in. intalox saddle type. The absorption process can remove 95% of the acetone present in the air. Under these operating conditions, the total solute mass transfer coefficient, Kya = 9.90 × 10−2 kmol m3/s. The acetone-water equilibrium data under these conditions are:

(on picture)

If Ls′ /Gs′ = 1.25 × (Ls′ /Gs′ )min, calculate:

a. How many moles of acetone are carried with the output of the absorbent liquid.
b. Filling height, in m
c. Theoretical plate equivalent height (HETP), in m

% moles of acetone in water (x)
3.3
7.2
11,7
17.11
partial pressure of acetone in air (mmHg)
30
62.8
85.4
103
Transcribed Image Text:% moles of acetone in water (x) 3.3 7.2 11,7 17.11 partial pressure of acetone in air (mmHg) 30 62.8 85.4 103
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