Low-temperature ethanol steam reforming in a Pd-Ag membrane reactor. Part 2. Pt-based and Ni-based catalysts and general comparison

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

38 Scopus citations

Abstract

The Pd-Ag membrane reformer has been packed with a Pt-based and Ni-based catalyst for carrying out the ethanol steam reforming. The experimental tests have been performed in the temperature range 400-450 °C: the effect of different operating parameters such as the sweep gas mode (co-current and counter-current), the spatial velocity and the water/ethanol feed molar ratio (8.4-13.0) on the hydrogen yields have been investigated. The results of these tests have been compared with the ones reported for the Pd-Ag membrane reformer using a Ru-based catalyst. With all the catalysts the best performances in terms of hydrogen yield have been attained at 450 °C and 200 kPa of lumen pressure with a water/ethanol feed molar ratio of 13. Especially, under these operating conditions both the Pt-based and Ni-based catalysts have exhibited hydrogen yield of about 50% against values higher than 80% reported for the Ru-based catalyst.

Original languageEnglish (US)
Pages (from-to)258-263
Number of pages6
JournalJournal of Membrane Science
Volume308
Issue number1-2
DOIs
StatePublished - Feb 1 2008

Keywords

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

ASJC Scopus subject areas

  • Biochemistry
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Filtration and Separation

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