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, E. Traversa

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

41 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
Externally publishedYes

Bibliographical note

Funding Information:
This work has been supported by the MIUR (Italian Ministry of Education, University and Research) in the framework of the research project no. RBAU01K4HJ. The authors wish to thank the Johnson & Matthey Company for furnishing the Ni-based catalyst.

Keywords

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

ASJC Scopus subject areas

  • Biochemistry
  • General Materials Science
  • Physical and Theoretical Chemistry
  • Filtration and Separation

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