Syngas production and combined heat and power from Scottish agricultural waste gasification – A Computational Study

Salem, A. M., Dhami, H. S. and Paul, M. (2022) Syngas production and combined heat and power from Scottish agricultural waste gasification – A Computational Study. Sustainability, 14(7), 3745. (doi: 10.3390/su14073745)

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Abstract

This paper explores the possibility of utilizing Scottish agricultural waste for sustainable energy, including combined heat and power (CHP). Challenges of using unconventional agricultural feedstocks for gasification are addressed, and the study is focused on the fundamental understanding of gasification processes as well as the design constraints of a commonly used downdraft gasifier. An integrated kinetic and CHP model is presented to address these, and the results demonstrate the optimal working parameters that maximize the production of high-quality syngas and power from the CHP engine. Based on the robust sensitivity analysis, an equivalence ratio (Φ) of 0.3–0.35 with moisture content (MC) less than 10% yields higher production of syngas, thus resulting in higher gasification efficiency. Moreover, an increase in Φ also favors the gasification temperature, which promotes tar cracking and results in lower tar content. Additionally, the gasification efficiency, design limitations, and challenges are addressed to optimize the gasifier design so that it can handle diverse feedstocks with high performance. Therefore, the findings are significant in the field of bioenergy and, in particular, help to expand the route of converting agricultural waste to energy.

Item Type:Articles
Additional Information:This research was funded by the Scottish Government Interface Food & Drink (IFD0190) and the University of Glasgow KE Fund (GKE100). M.C.P. also acknowledges his RAEng/Leverhulme Trust Senior Research Fellowship support (LTSRF1718\14\45) from the Royal Academy of Engineering, UK.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Salem, Ahmed Morsy Mostafa and Paul, Professor Manosh
Creator Roles:
Salem, A. M.Conceptualization, Methodology, Software, Validation, Resources, Writing – original draft, Writing – review and editing
Paul, M. C.Conceptualization, Methodology, Writing – review and editing, Supervision
Authors: Salem, A. M., Dhami, H. S., and Paul, M.
College/School:College of Science and Engineering > School of Engineering > Systems Power and Energy
Journal Name:Sustainability
Publisher:MDPI
ISSN:2071-1050
ISSN (Online):2071-1050
Copyright Holders:Copyright © 2022 by the authors
First Published:First published in Sustainability 14(7):3745
Publisher Policy:Reproduced under a Creative Commons Licence

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