Answers to Selected Odd-Numbered Exercises in
“Separation Process Principles” by
J. D. Seader and Ernest J. Henley
Chapter 5
5.11 (a) 11,100 kg (b) 4,050 kg (c) 2,270 kg (d) 1,748 kg (e) 554 kg 5.15
Flow rate, lbmol/h:
Comp. Exit vapor Exit liquid
Methane 150.1 0.9
Ethane 278.1 91.9
Propane 93.8 146.2
n-Butane 1.5 23.6
n-Pentane 0.3 6.3
Oil 0.1 328.2
Get more absorption with twice the absorbent rate and half of the trays. 5.37 For C = 3,
(a) 13(N + M) + 52 (b) 11(N + M) + 31 (c) 2(N + M) + 21
5.39 (a) 7(N + M) + 2C(N + M) + 7C + 28 (b) 5(N + M) + 2C(N + M) + 6C + 13 (c) 2(N + M) + C + 15
