1,Compare & contrast
with absorption from
poor gases
G=f (h) L=f (h)
But GB=Constant,
Ls= Constant
得物料衡算方程,
Features( characteristics)
§ 8.6 Absorption from rich gases(高浓度气体吸收 P574)
?
?
根据摩尔比的定义:
A
B
A A B B
AA
BA
A
S
A A S S
AA
SA
G
Y=
G
∵G = G y,G = G y
yy
Y = =
y 1 - y
L
Sa m e if X =
L
∵L = L x,L = L x
XX
X = =
X 1 - X
? ? ? ? ? ?B 1 2 S 1 2G Y - Y = L X - X 8 - 9 8
2,Absorption with non-isothermal systems
∵ Heat with the solution → E = f (h) →T= f (h)
∴ We need to make heat balance overall tower
→ temperature profile →determine E = f (h)
→y e= f (x,E)
3,Relationships between ky or kx and concentrations
of y and x for gas phase and liquid phase.
So the calculations for absorption from rich gases
are more difficulty than those from poor gases.