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Modelling and Parametric Study for CO2/CH4 Separation using Membrane Processes

Ahmad, Faizan and Lau, K.K. and Mohd Shariff, Azmi (2010) Modelling and Parametric Study for CO2/CH4 Separation using Membrane Processes. [Citation Index Journal]

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Official URL: http://www.waset.org/journals/waset/v72/v72-180.pd...

Abstract

The upgrading of low quality crude natural gas (NG) is attracting interest due to high demand of pipeline-grade gas in recent years. Membrane processes are commercially proven technology for the removal of impurities like carbon dioxide from NG. In this work, cross flow mathematical model has been suggested to be incorporated with ASPEN HYSYS as a user defined unit operation in order to design the membrane system for CO2/CH4 separation. The effect of operating conditions (such as feed composition and pressure) and membrane selectivity on the design parameters (methane recovery and total membrane area required for the separation) has been studied for different design configurations. These configurations include single stage (with and without recycle) and double stage membrane systems (with and without permeate or retentate recycle). It is shown that methane recovery can be improved by recycling permeate or retentate stream as well as by using double stage membrane systems. The ASPEN HYSYS user defined unit operation proposed in the study has potential to be applied for complex membrane system design and optimization.

Item Type:Citation Index Journal
Subjects:T Technology > TP Chemical technology
Departments / MOR / COE:Departments > Chemical Engineering
ID Code:4992
Deposited By: Prof Dr Azmi Mohd Shariff
Deposited On:25 Mar 2011 01:15
Last Modified:20 Mar 2014 00:42

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