Pyrolysis characteristics and kinetics of human faeces, simulant faeces and wood biomass by thermogravimetry–gas chromatography–mass spectrometry methods

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dc.contributor.authorSomorin, Tosin
dc.contributor.authorParker, Alison
dc.contributor.authorMcAdam, Ewan
dc.contributor.authorWilliams, Leon
dc.contributor.authorTyrrel, Sean F.
dc.contributor.authorKolios, Athanasios
dc.contributor.authorJiang, Ying
dc.date.accessioned2021-01-12T14:44:31Z
dc.date.available2021-01-12T14:44:31Z
dc.date.issued2020-12-09
dc.description.abstractHuman faeces (HF) are treated as wastes in many parts of the world, a resource that can be converted to energy and fuels. To enhance the understanding of fuel conversion processes and decomposition characteristics, this study investigated the pyrolysis behaviour and evolved gas profiles of HF using thermogravimetry with gas chromatography–mass spectrometry methods. Kinetic parameters were deduced using model-free kinetic models. Results are compared with simulant faeces (SF), wood biomass (WB) and HF–WB blends. The pyrolysis of HF involved two decomposition peaks — a fronting peak with weight loss of ∼. The apparent activation energy for HF varied from 122–382 kJ/mol at conversion rates of 10%–90% using Kissinger–Akahira–Sunose model. Some of the key pyrolysis products for HF at 370 °C were 4-methoxy-phenol, n-hexadecanoic acid, phenol, 4-methyl- and indole isomer (pyrrolo[1,2-a]pyridine). At 530 °C, evolved gases were largely fragmented with high proportions of alkanes and alkenes including 3-dodecane, 2-undecane, 6-tridecene, 2-propenylidene-cyclobutene. These products differed to WB that are largely hydroxyphenyls and methoxyphenols with guaiacyl or syringil structures. Blending with WB improved pyrolysis of HF, irrespective of the proportions of blenden_UK
dc.identifier.citationSomorin T, Parker A, McAdam E, et al., (2020) Pyrolysis characteristics and kinetics of human faeces, simulant faeces and wood biomass by thermogravimetry–gas chromatography–mass spectrometry methods. Energy Reports, Volume 6, November 2020, pp.3230-3239en_UK
dc.identifier.issn2352-4847
dc.identifier.urihttps://doi.org/10.1016/j.egyr.2020.11.164
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/16161
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectOnsite sanitationen_UK
dc.subjectEvolved gas analysisen_UK
dc.subjectFaecal sludgeen_UK
dc.subjectNon-isothermal conditionsen_UK
dc.subjectHyphenated techniquesen_UK
dc.titlePyrolysis characteristics and kinetics of human faeces, simulant faeces and wood biomass by thermogravimetry–gas chromatography–mass spectrometry methodsen_UK
dc.typeArticleen_UK

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