Influence of composition on the formation of melt near the floor tubing of kraft recovery boilers

R Backman, Mikko Hupa, Berndt Södergård, M Pulliainen, C Svensson

    Tutkimustuotos: Artikkeli kirjassa/raportissa/konferenssijulkaisussaKonferenssiartikkeliTieteellinenvertaisarvioitu


    Smelt bed samples from kraft recovery boilers were taken and chem. anal. was made at different depths in the smelt bed.  Lab. measurements with synthetic salt mixts. were done as well as measurements of elec. cond. of Li2CO3 and Na2CO3 melting salt mixts.  The results show that sulfur, chlorine and potassium can enrich in the lowest layer of the smelt bed.  The change in compn. can lead to formation of molten phase at temps. near floor tube metal temps.  Already a small amt. of melt causes the elec. cond. to increase with several orders of magnitude.  Theor. calcns. support the exptl. findings.
    AlkuperäiskieliEi tiedossa
    Otsikko10th International Symposium on Corrosion in the Pulp and Paper Industry
    ToimittajatT Hakkarainen
    ISBN (painettu)951-38-5724-7
    TilaJulkaistu - 2001
    OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisuussa
    Tapahtumaconference; 2001-08-21; 2001-08-24 - Marina Congress Center, Helsinki, Finland
    Kesto: 21 elokuuta 200124 elokuuta 2001


    Konferenssiconference; 2001-08-21; 2001-08-24