Appearance of trace elements in co-firing fuels

Maria Zevenhoven, R Backman, BJ Skrifvars, Mikko Hupa

    Research output: Chapter in Book/Conference proceedingConference contributionScientificpeer-review

    Abstract

    With the implementation of new EU guidelines the levels of max. allowable emission levels of Cd, Tl, Hg, Sb, As, Pb, Cr, Co, Cu, Mn, Ni, V will be further restricted.  This may have implications for co-​combustion of coal with waste derived fuels.  In this study chem. fractionation, i.e. a stepwise leaching procedure has been applied on coal, peat, sewage sludge, bark, impregnated wood and forest residue.  With this method fuels are leached in three steps, i.e. leached with water, ammonium acetate and hydro chloric acid, resp.  Both soly. in different leaching agents of main ash forming matter and the trace elements Cd, Tl, Hg, Sb, As, Pb, Cr, Co, Cu, Mn, Ni, V and Zn were studied.  In this way more information became available about the characteristics of co-​firing fuels.  Thermodn. calcns. were used to show the consequences of the interaction with main ash forming elements on the partition of Cd, Hg, Pb and Zn in the gas​/ash phase.
    Original languageUndefined/Unknown
    Title of host publicationProceedings of the 18th International Conference on Fluidized Bed Combustion
    EditorsL Jia
    PublisherAmerican Society of Mechanical Engineers, ASME
    Pages697–717
    ISBN (Print)0-7918-4698-9
    DOIs
    Publication statusPublished - 2005
    MoE publication typeA4 Article in a conference publication
    Eventconference; 2005-05-22; 2005-05-25 - Toronto, Canada
    Duration: 22 May 200525 May 2005

    Conference

    Conferenceconference; 2005-05-22; 2005-05-25
    Period22/05/0525/05/05

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