Fluidized bed combustion of refuse-derived fuel in presence of protective coal ash

Eduardo Ferrer (Corresponding Author), Martti Aho, Jaani Silvennoinen, Riku-Ville Nurminen

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42 Citations (Scopus)


Combustion of refuse-derived fuel (RDF) alone or together with other biomass leads to superheater fouling and corrosion in efficient power plants (with high steam values) due to vaporization and condensation of alkali chlorides. In this study, means were found to raise the portion of RDF to 40% enb without risk to boilers. This was done by co-firing RDF with coal and optimizing coal quality. Free aluminum silicate in coal captured alkalies from vaporized alkali chlorides preventing Cl condensation to superheaters. Strong fouling and corrosion were simultaneously averted. Results from 100 kW and 4 MW CFB reactors are reported.
Original languageEnglish
Pages (from-to)33 - 44
Number of pages12
JournalFuel Processing Technology
Issue number1
Publication statusPublished - 2005
MoE publication typeA1 Journal article-refereed



  • fluidized beds

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