The effect of lignin and inorganic species in biomass on pyrolysis oil yields, quality and stability

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dc.contributor.author Fahmi, R.
dc.contributor.author Bridgwater, A. V.
dc.contributor.author Donnison, I.
dc.contributor.author Yates, N.
dc.contributor.author Jones, J. M.
dc.date.accessioned 2009-05-21T08:32:43Z
dc.date.available 2009-05-21T08:32:43Z
dc.date.issued 2008-06
dc.identifier.citation Fahmi , R , Bridgwater , A V , Donnison , I , Yates , N & Jones , J M 2008 , ' The effect of lignin and inorganic species in biomass on pyrolysis oil yields, quality and stability ' Fuel , vol 87 , no. 7 , pp. 1230-1240 . en
dc.identifier.other PURE: 101222
dc.identifier.other dspace: 2160/2266
dc.identifier.uri http://hdl.handle.net/2160/2266
dc.description Sponsorship: EPSRC On file IMPF: 02.54 RONO: 1310 6215 en
dc.description.abstract This paper investigates four reference fuels and three low lignin Lolium Festuca grasses which were subjected to pyrolysis to produce pyrolysis oils. The oils were analysed to determine their quality and stability, enabling the identification of feedstock traits which affect oil stability. Two washed feedstocks were also subjected to pyrolysis to investigate whether washing can enhance pyrolysis oil quality. It was found that the mineral matter had the dominate effect on pyrolysis in compared to lignin content, in terms of pyrolysis yields for organics, char and gases. However the higher molecular weight compounds present in the pyrolysis oil are due to the lignin derived compounds as determined by results of GPC and liquid-GC/MS. The light organic fraction also increased in yield, but reduced in water content as metals increased at the expense of the lignin content. It was found that the fresh oil and aged oil had different compound intensities/concentrations, which is due to a large number of reactions occurring when the oil is aged day by day. These findings agree with previous reports which suggest that a large amount of re-polymerisation occurs as levoglucosan yields increase during the aging progress, while hydroxyacetaldehyde decrease. In summary the paper reports a window for producing a more stable pyrolysis oil by the use of energy crops, and also show that washing of biomass can improve oil quality and stability for high ash feedstocks, but less so for the energy crops. en
dc.format.extent 11 en
dc.language.iso eng
dc.relation.ispartof Fuel en
dc.subject Pyrolysis stability en
dc.subject Lignin en
dc.subject Alkali metals en
dc.title The effect of lignin and inorganic species in biomass on pyrolysis oil yields, quality and stability en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.identifier.doi http://dx.doi.org/10.1016/j.fuel.2007.07.026
dc.contributor.institution Institute of Biological, Environmental and Rural Sciences en
dc.description.status Peer reviewed en


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