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Probing Synergies between Lignin-Rich and Cellulose Compounds for Gasification

Taylor, Martin J. ; Michopoulos , Apostolos K.; Zabaniotou, Anastasia A.; Skoulou, Vasiliki

Authors

Apostolos K. Michopoulos

Anastasia A. Zabaniotou

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Dr Vicky Skoulou V.Skoulou@hull.ac.uk
Director of Research in Chemical Engineering ;Lecturer in Chemical Engineering-Bioenergy ; PI of the B3: Biomass waste- Bioenergy- Biochars Challenge Group



Abstract

The fixed bed gasification of lignin rich and deficient mixtures was carried out to probe the synergistic effects between two model compounds, Lignin Pink (LP) rich in Na and Cellulose Microcrystalline (CM). Reaction conditions utilized the most commonly used air ratios in current wood gasifiers at 750 °C and 850 °C. It was found that by increasing the lignin content in the mixture, there was a selectivity change from solid to gas products, contrary to a similar study previously carried out for pyrolysis. This change in product mix was promoted by the catalytic effect of Na edge recession deposits on the surface of the char. As a result, the water gas shift reaction was enhanced at 850 °C for the LP48CM52 mixture across all air ratios, this was evidenced by a strong correlation between the produced H2 and COx. Meanwhile, by lowering the lignin content in the mixtures, the reactivity of cellulose microcrystalline was found to generate more char at higher temperature, similar to lignin mixtures when undergoing pyrolysis.

Journal Article Type Article
Journal Energies
Publisher MDPI
Peer Reviewed Peer Reviewed
Volume 13
Issue 10
Article Number 2590
APA6 Citation Taylor, M. J., Michopoulos, A. K., Zabaniotou, A. A., & Skoulou, V. (in press). Probing Synergies between Lignin-Rich and Cellulose Compounds for Gasification. Energies, 13(10), https://doi.org/10.3390/en13102590
DOI https://doi.org/10.3390/en13102590
Keywords Gasification; Lignocellulosic biomass waste; Lignin; Cellulose; Na promotion; Water gas shift
Publisher URL https://www.mdpi.com/journal/energies
Additional Information Multidicsiplinary and intrenational work (Chemist, Mech Eng and Chemical Engineers from UK, Cyprus and Greece)

Martin J. Taylor,1,2 Apostolos K. Michopoulos,3 Anastasia A. Zabaniotou4 and Vasiliki Skoulou1,2*

1 Energy and Environment Institute, University of Hull, Cottingham Road, Hull, HU6 7RX, United Kingdom
2 B3 Challenge Group, Department of Chemical Engineering, University of Hull, Cottingham Road, Hull HU6 7RX, United Kingdom
3 Energy and Environmental Design of Buildings Research Lab, University of Cyprus, P.O. Box 20537, 1678 Nicosia, Cyprus
4 Department of Chemical Engineering, Aristotle University of Thessaloniki, PO. Box 455, University Campus, GR 541 24, Thessaloniki, Greece

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© 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).







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