Thermal decomposition and gasification of biomass pyrolysis gases using a hot bed of waste derived pyrolysis char

Al-Rahbi, Amar S, Onwudili, Jude and Williams, Paul T (2016). Thermal decomposition and gasification of biomass pyrolysis gases using a hot bed of waste derived pyrolysis char. Bioresource Technology, 204 , pp. 71-79.

Abstract

Chars produced from the pyrolysis of different waste materials have been investigated in terms of their use as a catalyst for the catalytic cracking of biomass pyrolysis gases during the two-stage pyrolysis-gasification of biomass. The chars were produced from the pyrolysis of waste tyres, refused derived fuel and biomass in the form of date stones. The results showed that the hydrocarbon tar yields decreased significantly with all the char materials used in comparison to the non-char catalytic experiments. For example, at a cracking temperature of 800 °C, the total product hydrocarbon tar yield decreased by 70% with tyre char, 50% with RDF char and 9% with biomass date stones char compared to that without char. There was a consequent increase in total gas yield. Analysis of the tar composition showed that the content of phenolic compounds decreased and polycyclic aromatic hydrocarbons increased in the product tar at higher char temperatures.

Publication DOI: https://doi.org/10.1016/j.biortech.2015.12.016
Divisions: Engineering & Applied Sciences
Engineering & Applied Sciences > European Bioenergy Research Institute (EBRI)
Additional Information: © 2015, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Uncontrolled Keywords: Tar,Bio-oil,Biomass,Waste,Pyrolysis
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Related URLs: https://www.sci ... 6466?via%3Dihub (Publisher URL)
Published Date: 2016-03-01
Authors: Al-Rahbi, Amar S
Onwudili, Jude ( 0000-0002-5355-9970)
Williams, Paul T

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