Low temperature ethanol steam reforming in a Pd-Ag membrane reactor. Part 1: Ru-based catalyst

S. Tosti*, A. Basile, F. Borgognoni, V. Capaldo, S. Cordiner, S. Di Cave, F. Gallucci, C. Rizzello, A. Santucci, Enrico Traversa

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

75 Scopus citations

Abstract

The ethanol steam reforming has been carried out in a membrane reactor consisting of a Ru-based catalyst bed packed into a thin wall Pd-Ag permeator tube produced via cold-rolling and diffusion welding of metal foils. The experimental tests have been performed in the temperature range 400-450 °C with the aim of studying the performances of the membrane reactor in terms of hydrogen yields. The main investigated operating parameters have concerned the water/ethanol feed molar ratio (8.4-13.0), the pressure inside the membrane (150-200 kPa), the sweep gas mode (co-current and counter-current) and the spatial velocity. In all the tests, ultra pure hydrogen has been separated through the Pd-Ag membrane: especially, operating at 450 °C and 200 kPa, a hydrogen yield higher than 80% has been produced thus demonstrating the membrane ability of promoting the reaction conversion (shift effect).

Original languageEnglish (US)
Pages (from-to)250-257
Number of pages8
JournalJournal of Membrane Science
Volume308
Issue number1-2
DOIs
StatePublished - Feb 1 2008

Keywords

  • Ethanol steam reforming
  • Hydrogen production
  • Membrane reactor
  • Pd-based membranes
  • Ru catalyst

ASJC Scopus subject areas

  • Filtration and Separation
  • Polymers and Plastics

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