Co-firing black liquor and biomass in a laboratory single droplet reactor - effects on emissions and combustion characteristics

A1 Originalartikel i en vetenskaplig tidskrift (referentgranskad)

Interna författare/redaktörer

Publikationens författare: Nikolai Demartini, Esperanza Monedero, Patrik Yrjas, Mikko Hupa
Publiceringsår: 2010
Tidskrift: Tappi Journal
Tidskriftsakronym: TAPPI J
Volym: 9
Nummer: 9
Artikelns första sida, sidnummer: 30
Artikelns sista sida, sidnummer: 34
Antal sidor: 6
ISSN: 0734-1415


Mills having recovery boilers with excess capacity can potentially mix other biofuels into the black liquor to produce more electricity from biomass. This work is a laboratory study of the effect on combustion of mixing other biofuels with black liquor. The four fuels mixed with softwood black liquor were bark, wood chips, peat, and bio-sludge (which some mills already burn with black liquor). Droplets of the mixed fuels were burned at 1100 degrees C and 3% O-2 in a single particle reactor. Video and on-line gas analyzers for CO, CO2 and NO were used to measure swelling, combustion times, carbon evolution (CO+CO2), and NO formation tendency. We found changes in swelling, char burning, and NO formation, but the results indicate that mixing biofuels with black liquor may be a reasonable method of producing additional electricity.


Biofuels, black liquor

Senast uppdaterad 2020-28-03 vid 04:51