Abstract
Implementing membrane gas separation systems have led to remarkable profits in both processes and products. This study presents the modeling and simulation of membrane gas separation systems using Aspen Plus® V8.6. A FORTRAN user model and a numerical solution procedure have been developed to characterize asymmetric hollow fiber membrane modules. The main benefit of this model is that it can be easily incorporated into a commercial simulator and used as a unit operation model in complex systems. A comparison between the model and the experimental cases at different operation conditions shows that calculated values are in good agreement with measured values. This model is suitable for future developments as well as design and performance analysis of multicomponent gas permeation systems prior to experimental realization.
Nomenclature
- u
feed side flow rate, mol/s
- D
outer diameter of hollow fiber, m
- J
permeance, mol/m2 sPa
- P
feed side pressure, Pa
- p
permeate side pressure, Pa
- x
feed side molar fraction
- y
permeate mole fraction
- N
number of fibers in the module
- z
change hollow fiber length, m
- v
permeate side flow rate, mol/s
- L
active length, m
Subscripts
- i
component index
- f
referring to feed
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