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Abstract
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In this study, the production of H2 utilizing chemical looping combustion (CLC) in a methane dry reformer
assisted by H2 perm-selective membranes in a CLC-DRM configuration has been investigated. CLC via
employment of a Mn-based oxygen carrier generates large amounts of heat in addition to providing CO2
as the raw material for the dry reforming (DR) reaction. The main advantage of the CLC-DRM configuration
is the simultaneous capturing and consuming of CO2 as a greenhouse gas for H2 production.
A steady state one dimensional heterogeneous catalytic reaction model is applied to analyze the performance
and applicability of the proposed CLC-DRM configuration. Simulation results show that CH4 is
completely consumed in the fuel reactor (FR) of the CLC-DRM and pure CO2 is captured by condensation
of H2O. Also, CH4 conversion and H2 yield reach 73.46% and 1.459 respectively at the outlet of the DR side
in the CLC-DRM. Additionally, 4562 kmol h?1 H2 is produced in the DR side of the CLC-DRM.
Finally, results indicate that by increasing the FR feed temperature up to 880 K, CH4 conversion and H2
production are enhanced to 81.15% and 4790 kmol h?1 respectively.
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