SORPTION-ENHANCED STEAM REFORMING OF ETHANOL FOR HYDROGEN PRODUCTION

Authors

  • Roger Avendaño Instituto de Tecnologías del Hidrógeno y Energías SosteniblesITHES (UBA-CONICET)
  • Maria Laura Dieuzeide Instituto de Tecnologías del Hidrógeno y Energías SosteniblesITHES (UBA-CONICET)
  • Pablo Bonelli Facultad de Ciencias Exactas y Naturales, UBA.
  • Norma Elvira Amadeo ITHES (UBA-CONICET)

DOI:

https://doi.org/10.52292/j.laar.2020.335

Keywords:

CO2 sorbent; Ethanol steam reforming; CaO; Mayenite

Abstract

In last years, sorption-enhanced steam reforming of ethanol (SESRE) has become an interesting alternative for the industry, since it offers high H2 purity with a simpler and smaller system. In this study CaO derived materials were synthesized to improve multicyclic CO2 sorption-desorption stability. A dispersant and inert phase (Ca12All4O33) was incorporated into CaO structure. The effects of CaO:Ca12Al14O33 ratio on the characteristics of the new absorbents and on their performance in  sorption-enhanced steam reforming of ethanol were analyzed. The results obtained indicate that the absorbent 85% CaO – 15% Ca12Al14O33 had significantly improved cyclic reaction stability. Additionally, it was proved that with this adsorbent CO purity on wet basis was lower than 2 %, making it possible to attain in only one reaction stage the CO purity obtained after de WGS reactor.

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Published

2020-02-21

Issue

Vol. 50 No. 2 (2020): Latin American Applied Research

Section

Chemical Engineering

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