Temperature and pressure dependence of membrane permeance and its effect on process economics of hollow fiber gas separation system

Faizan Ahmad, Kok keon Lau, Azmi Muhamma Shariff, Yin Fong Yeong

Research output: Contribution to journalArticle

Abstract

Conventional hollow fiber models in process simulators usually assume constant membrane permeance i.e., independent of pressure and temperature. In this work, hollow fiber membrane model has been proposed to cater the effects of temperature and pressure on membrane permeance. The proposed model is incorporated with Aspen HYSYS as a user defined unit operation in order to study the performance of gas separation system. The simulated model is validated by experimental and published data. The temperature drop due to Joule Thomson effect and its contribution to the change in membrane permeance has also been investigated. Similarly, the effect of pressure on membrane permeance has been studied. The influence of these effects on the separation performance and process economics has been investigated for the separation of CO2 from natural gas. The proposed hollow fiber membrane model has potential to be applied for design, optimization and scale up of wide range of gas separation systems.
Original languageEnglish
Pages (from-to)44-55
JournalJournal of Membrane Science
Volume430
DOIs
Publication statusPublished - 7 Dec 2012

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