Performance of nanoporous carbon membrane for hydrogen recovery

Abdulrahman A. Al-Rabiah, Abdelhamid M. Ajbar, Moustafa A. Soliman, Omar Y. Abdelaziz

Research output: Contribution to journalArticlepeer-review

Abstract

The aim of this work is to study the performance of nanoporous carbon membrane for hydrogen recovery from off-gas streams. The study is based on a rigorous mathematical model which can predict the performance of nanoporous selective surface flow (SSF) carbon membrane. Basically, the developed model is based on two transport mechanisms: the dusty gas flow through porous media and the surface adsorption-diffusion. The model was employed to simulate the hydrogen recovery from off-gas stream using SSF carbon membrane at different operating conditions. The separation performance of hydrogen-hydrocarbon mixture by nanoporous carbon membrane was evaluated and described. A comparison between the model simulation and the experimental data related to hydrogen recovery from off-gas streams shows good agreement. A parametric study is further carried out to show the effects of pressure at the membrane feed and permeate sides. The effects of flow-rate and type of sweep gas at the membrane permeate side on hydrogen recovery are also shown. SSF membrane illustrates a significant potential to be used for hydrogen recovery from refinery off-gas streams.

Original languageEnglish
Pages (from-to)43-51
Number of pages9
JournalJournal of the Chemical Society of Pakistan
Volume40
Issue number1
Publication statusPublished - 2018 Jan 1

Subject classification (UKÄ)

  • Other Chemical Engineering

Keywords

  • Dusty gas model
  • Hydrogen gas transport
  • Hydrogen production
  • Hydrogen-hydrocarbon separation
  • Membranes
  • Selective surface flow

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