Next Article in Journal
Sanitation and Analysis of Operation Data in Energy Systems
Next Article in Special Issue
An Assessment of Direct on-Farm Energy Use for High Value Grain Crops Grown under Different Farming Practices in Australia
Previous Article in Journal
A Novel, Stable, and Economic Power Sharing Scheme for an Autonomous Microgrid in the Energy Internet
Previous Article in Special Issue
Techno-Economic Performance Evaluation for Olive Mills Powered by Grid-Connected Photovoltaic Systems
Article Menu

Export Article

Open AccessArticle
Energies 2015, 8(11), 12765-12775;

Glycerin, a Biodiesel By-Product with Potentiality to Produce Hydrogen by Steam Gasification

Department of Applied Physics, University of Extremadura, Avda. Elvas s/n, Badajoz 06006, Spain
Department of Mechanical, Energy and Materials Engineering, University of Extremadura, Avda. Elvas s/n, Badajoz 06006, Spain
National Centre for Engineering in Agriculture, University of Southern Queensland, Brisbane, QLD 4350, Australia
Author to whom correspondence should be addressed.
Academic Editor: Chang Sik Lee
Received: 3 September 2015 / Revised: 30 October 2015 / Accepted: 4 November 2015 / Published: 11 November 2015
(This article belongs to the Special Issue Energy for Agriculture)
Full-Text   |   PDF [983 KB, uploaded 11 November 2015]   |  


This work investigates the possibility of providing a use to one of the major byproducts generated during biodiesel processing: glycerin. In particular, the steam gasification of water/glycerin mixtures is studied, analysing the influence of temperature (range 600–900 °C), inlet flow rate (0.5–3 mL·min1) and water/glycerin ratio (6–12 wt/wt, %) on the gas composition (H2, CO, CH4 and CO2), higher heating value, and generated power. In general, a more diluted water/glycerin mixture is more interesting in order to provide a higher fraction of hydrogen in the gas produced, although it also involves a decrease in the power obtained. Higher temperatures cause a greater contribution of water gas and water gas shift reactions in all cases, thus increasing the H2 proportion of the gas. Finally, a greater inlet flow rate increases gas production, but decreases the hydrogen proportion. View Full-Text
Keywords: glycerin; steam gasification; synthesis gas; hydrogen glycerin; steam gasification; synthesis gas; hydrogen

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Suero, S.R.; Ledesma, B.; Álvarez-Murillo, A.; Al-Kassir, A.; Yusaf, T. Glycerin, a Biodiesel By-Product with Potentiality to Produce Hydrogen by Steam Gasification. Energies 2015, 8, 12765-12775.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top