Process simulation and optimal design of membrane separation system for CO 2 capture from natural gas

Faizan Ahmad, K. K. Lau*, A. M. Shariff, Ghulam Murshid

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

88 Citations (Scopus)


Membrane process, a relatively new technology among other available techniques, can be used for the purpose of CO 2 capture from natural gas. Over the decades, membrane performance has been described by different mathematical models, but there is limited work done in the field of process simulation where membrane models can be incorporated with other unit operations using commercially available simulator. In this paper, a two dimensional cross flow mathematical model for membrane separation has been incorporated with Aspen HYSYS as a user defined unit operation in order to optimize and design the membrane system for CO 2 capture from natural gas. Parameter sensitivities, along with process economics, have been studied for different design configurations (including recycle streams and multiple stages). It has been observed that double stage with permeate recycle system gives the optimum design configuration due to minimum process gas cost involved with it.

Original languageEnglish
Pages (from-to)119-128
Number of pages10
JournalComputers and Chemical Engineering
Issue number1
Publication statusPublished - Jan 10 2012


  • CO capture
  • Membrane modeling
  • Membrane Process
  • Process simulation

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Computer Science Applications


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