Carbon-coated ceramic membrane reactor for the production of hydrogen by aqueous-phase reforming of sorbitol

M.F. Neira d'Angelo, V. Ordomskiy, J.C. Schouten, J. Schaaf, van der, T.A. Nijhuis

Research output: Contribution to journalArticleAcademicpeer-review

18 Citations (Scopus)
10 Downloads (Pure)

Abstract

Hydrogen was produced by aqueous-phase reforming (APR) of sorbitol in a carbon-on-alumina tubular membrane reactor (4 nm pore size, 7 cm long, 3 mm internal diameter) that allows the hydrogen gas to permeate to the shell side, whereas the liquid remains in the tube side. The hydrophobic nature of the membrane serves to avoid water loss and to minimize the interaction between the ceramic support and water, thus reducing the risks of membrane degradation upon operation. The permeation of hydrogen is dominated by the diffusivity of the hydrogen in water. Thus, higher operation temperatures result in an increase of the flux of hydrogen. The differential pressure has a negative effect on the flux of hydrogen due to the presence of liquid in the larger pores. The membrane was suitable for use in APR, and yielded 2.5 times more hydrogen than a reference reactor (with no membrane). Removal of hydrogen through the membrane assists in the reaction by preventing its consumption in undesired reactions. Tubular shells: Hydrogen is selectively produced by means of aqueous-phase reforming in a hydrophobic tubular membrane reactor. The hydrogen gas permeates to the shell side, whereas the liquid remains in the tube side. The removal of hydrogen through the membrane prevents its consumption in undesired reactions, increasing the yield of hydrogen.

Original languageEnglish
Pages (from-to)2007-2015
Number of pages9
JournalChemSusChem
Volume7
Issue number7
DOIs
Publication statusPublished - 1 Jan 2014

Keywords

  • aqueous-phase reforming
  • biomass
  • carbohydrate
  • carbon membrane
  • hydrogen

Fingerprint Dive into the research topics of 'Carbon-coated ceramic membrane reactor for the production of hydrogen by aqueous-phase reforming of sorbitol'. Together they form a unique fingerprint.

  • Cite this