Korean Membrane Journal

The Membrane Society of Korea (한국막학회)
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Hydrogen Production Using Membrane Reactors

  • Giuseppe Barbieri (Research Institute on the Membrane Technology, ITM-CNR, c/o University of Calabria) ;
  • Paola Bernardo (Research Institute on the Membrane Technology, ITM-CNR, c/o University of Calabria, Department of Chemical Engineering and of Materials, University of Calabria) ;
  • Enrico Drioli (Research Institute on the Membrane Technology, ITM-CNR, c/o University of Calabria, Department of Chemical Engineering and of Materials, University of Calabria) ;
  • Lee, Dong-Wook (Membrane and Separation Research Center, Korea Research Institute of Chemical Technology) ;
  • Sea, Bong-Kuk (Membrane and Separation Research Center, Korea Research Institute of Chemical Technology) ;
  • Lee, Kew-Ho (Membrane and Separation Research Center, Korea Research Institute of Chemical Technology)
  • Published : 2003.12.01
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Abstract

Methane steam reforming (MSR) reaction for hydrogen production was studied in a membrane reactor (MR) using two tubular membranes, one Pd-based and one of porous alumina. A higher methane conversion than the thermodynamic equilibrium for a traditional reactor (TR) was achieved using MRs. The experimental temperature range was 350-500$^{\circ}C$; no sweep-gas was employed during reaction tests to avoid its back-permeation through the membrane and the steam/methane molar feed ratio (m) varied in the range 3.5-5.9. The best results (the difference between the MR conversion and the thermodynamic equilibrium was of about 7%) were achieved with the alumina membrane, working with the highest steam/methane ratio and at 450$^{\circ}C$. Silica membranes prepared at KRICT laboratories were characterized with permeation tests on single gases (N$_2$, H$_2$ and CH$_4$). These membranes are suited for H$_2$ separation at high temperature.

Keywords

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