Kinetic study of autothermal reforming of glycerol in a dual layer monolith catalyst

Yujia Liu, Adeniyi Lawal

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

Kinetic study of autothermal reforming of glycerol was performed in a dual layer monolith catalyst to be used in the design of chemical reactors to optimize product (H2 and CO) yield and more efficiently adjust the H2/CO ratio. The catalytic partial oxidation catalyst layer is in direct contact with the steam reforming catalyst layer next to the monolith wall with the two reactions thus occurring in one reactor. Kinetic experiments were carried out to measure the effects of the steam to carbon molar ratio, oxygen to carbon molar ratio, and temperature on the rate of reaction. Mass and heat transfer resistances were found to be negligible. Reaction rate expressions were based on proposed reaction mechanisms using the Langmuir-Hinshelwood approach. Non-linear regression was performed to obtain kinetic constants and activation energy. The later was found to be about 131kJ/mol. Mechanistic considerations indicated that glycerol underwent non-dissociative adsorption and steam underwent dissociative adsorption. The modeling results were successfully validated with experimental data.

Original languageEnglish
Pages (from-to)276-283
Number of pages8
JournalChemical Engineering and Processing: Process Intensification
Volume95
DOIs
StatePublished - 2015

Keywords

  • Biodiesel
  • Glycerol
  • Kinetics
  • Pt Rh/Pt Monolith catalysts
  • Reforming
  • Syngas

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