Studies on ash species release during the pyrolysis of solid fuels with a heated grid reactor

Tuomas Valmari, Esko Kauppinen, Terttaliisa Lind, Minna Kurkela, Antero Moilanen, Riitta Zilliacus

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    Abstract

    The release of alkalis (sodium and potassium) and five ash matrix elements (silicon, aluminium, iron, calcium and magnesium) during the pyrolysis of Polish coal, Pittsburgh #8 coal, peat and two wood chips was studied with a heated grid reactor using heating conditions relevant to fluidised bed combustion and gasification. Mineral particles or any other super micron fragments were found not to be released from any of the fuels during the pyrolysis. Less than 5 % of any of the elements studied were released from the fuels, with an exception of iron from wood chips. Some iron may have been released from the wood chips (less than 14 % from whole tree chips and less than 8 % from wood chips fuel fraction). Less than 1 % of iron was released from coals and peat.
    Original languageEnglish
    Title of host publicationApplications of Advanced Technology to Ash-Related Problems in Boilers
    EditorsLarry Baxter, Richard DeSollar
    Place of PublicationNew York
    PublisherPlenum
    Pages265-280
    ISBN (Electronic)978-1-4757-9223-2
    ISBN (Print)978-0-306-45376-2, 978-1-4757-9225-6
    DOIs
    Publication statusPublished - 1996
    MoE publication typeA4 Article in a conference publication
    EventEngineering Foundation Conference on Applications of Advanced Technology to Ash Related Problems in Boilers - Waterville Valley, United States
    Duration: 16 Jul 199521 Jul 1995

    Conference

    ConferenceEngineering Foundation Conference on Applications of Advanced Technology to Ash Related Problems in Boilers
    Country/TerritoryUnited States
    CityWaterville Valley
    Period16/07/9521/07/95

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