Solid–gaseous phase transformation of elemental contaminants during the gasification of biomass

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dc.contributor.authorJiang, Ying
dc.contributor.authorAmeh, Abiba
dc.contributor.authorLei, Mei
dc.contributor.authorDuan, Lunbo
dc.contributor.authorLonghurst, Philip J.
dc.date.accessioned2016-05-10T13:15:06Z
dc.date.available2016-05-10T13:15:06Z
dc.date.issued2015-11-18
dc.description.abstractDisposal of plant biomass removed from heavy metal contaminated land via gasification achieves significant volume reduction and can recover energy. However, these biomass often contain high concentrations of heavy metals leading to hot-corrosion of gasification facilities and toxic gaseous emissions. Therefore, it is of significant interest to gain a further understanding of the solid–gas phase transition of metal(loid)s during gasification. Detailed elemental analyses (C, H, O, N and key metal/metalloid elements) were performed on five plant species collected from a contaminated site. Using multi-phase equilibria modelling software (MTDATA), the analytical data allows modelling of the solid/gas transformation of metal(loid)s during gasification. Thermodynamic modelling based on chemical equilibrium calculations was carried out in this study to predict the fate of metal(loid) elements during typical gasification conditions and to show how these are influenced by metal(loid) composition in the biomass and operational conditions. As, Cd, Zn and Pb tend to transform to their gaseous forms at relatively low temperatures (< 1000 °C). Ni, Cu, Mn and Co converts to gaseous forms within the typical gasification temperature range of 1000–1200 °C. Whereas Cr, Al, Fe and Mg remain in solid phase at higher temperatures (> 1200 °C). Simulation of pressurised gasification conditions shows that higher pressures increase the temperature at which solid-to-gaseous phase transformations takes place.en_UK
dc.description.sponsorshipThe authors wish to thank the UK Engineering and Physical Sciences Research Council (EPSRC) for the financial support to carry out this work through grant number EP/K026216/1 (Cleaning Land for Wealth) and a SUPERGEN Bioenergy Hub Small Grant.en_UK
dc.identifier.citationJiang Y, Ameh A, Lei M, et al., (2016) Solid–gaseous phase transformation of elemental contaminants during the gasification of biomas. Science of the Total Environment, Volume 563-564, September 2016, pp. 724-730en_UK
dc.identifier.cris3637705
dc.identifier.issn0048-9697
dc.identifier.urihttp://dx.doi.org/10.1016/j.scitotenv.2015.11.017
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/9870
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution 4.0 Internationalen_UK
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectLand contaminationen_UK
dc.subjectHeavy metalen_UK
dc.subjectBiomass wasteen_UK
dc.subjectGasificationen_UK
dc.subjectMTDATAen_UK
dc.titleSolid–gaseous phase transformation of elemental contaminants during the gasification of biomassen_UK
dc.typeArticleen_UK

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