Thermodynamic Study of Hydrogen Production via Bioglycerol Steam Reforming

Conference proceedings article

Authors / Editors

Agachi, Paul

Research Areas

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Publication Details

Author list: Tasnadi-Asztalos Z, Imre-Lucaci A, Cormos CC, Cormos AM, Lazar MD, Agachi PS

Publisher: Elsevier: Monograph Series

Place: AMSTERDAM

Publication year: 2014

Journal: Computer Aided Chemical Engineering (1570-7946)

Journal acronym: COMPUT-AIDED CHEM EN

Volume number: 33

Start page: 1735

End page: 1740

Number of pages: 6

ISBN: 978-0-444-63456-6

eISBN: 978-0-444-63443-6

ISSN: 1570-7946

Languages: English-Great Britain (EN-GB)

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Abstract

A thermodynamic analysis and experimental validation of bioglycerol catalytic steam reforming process using Ni/Al2O3 catalyst for hydrogen production is presented in this article. The thermodynamic study was performed by developing a mathematical model of the process using ChemCAD process simulator a well-known and widely used CAPE tool. All major reactions and major products (H-2, CO, CO2, CH4, C) obtained in the steam reforming of glycerol were considered in the thermodynamic analysis. For the validation of the simulation results, the results were compared with experimental data reported by literature. Following thermodynamic study the most important factors which influence the steam reforming of bioglycerol are the water/bioglycerol molar ratio and the temperature. The concentrations of the main product (H-2) at lower temperature are smaller than the ones at higher temperature due to by-products formation (methane). The maximum concentration of H-2 was obtained at 650 - 700 degrees C, 1 bar and molar ratio water/glycerol 10 : 1. The main by-products concentration (expressed in dry concentrations) where H-2 concentration is maximum, are the following: 0 % mol CH4, 21.2 % mol CO, 9.7 % mol CO2. The minimum formation of CH4 and C was obtained at 1 bar, 1,000 degrees C and molar ratio water/glycerol 10 : 1.

Keywords

bioglycerol, Hydrogen production, steam reforming of glycerol, thermodynamic study

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