Maximising the safe portion of forest biomass in power plants by utilising protective properties of peat

Martti Aho

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

    Abstract

    There is need to increase the portion of forest biomass in effective power plants. However, it must be done safely: examples of superheater damages exist. Maximum energy portion of wood biomass in its blends with different peats (and with one coal) was calculated with two indexes: molar S/Cl and molar (2S + Al) / Cl ratios. These indexes are based on the ability of sulphur (as So3) and aluminium silicates to destroy corrosive alkali chlorides in the power plant furnace before their entering to superheaters. It is possible to co-fire forest biomass at 50-90 % energy portion with peats. These results must be implemented carefully because for example calcium can weaken the power of sulphur and more research work would be needed to know better the importance of Ca.
    Original languageEnglish
    Title of host publicationBook of Proceedings
    Subtitle of host publicationBioenergy from forest 2012
    PublisherBenet Oy
    Pages225-228
    ISBN (Electronic)978-952-67890-0-2
    Publication statusPublished - 2012
    MoE publication typeB3 Non-refereed article in conference proceedings
    EventBioenergy from Forest 2012 - Jyväskylä, Finland
    Duration: 27 Aug 20121 Sep 2012

    Conference

    ConferenceBioenergy from Forest 2012
    CountryFinland
    CityJyväskylä
    Period27/08/121/09/12

    Keywords

    • power plants
    • forest biomass
    • corrosion

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