Distribution of selected elements during the co-combustion of lignite with wood and wood wastes

Title:

Distribution of selected elements during the co-combustion of lignite with wood and wood wastes

Creator:

Zdeněk Klika, Bartoňová, Lucie, and Serenčíšová, Jana

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:e563628a-f0f7-4094-ba2f-8ac97eeb7fc1
uuid:e563628a-f0f7-4094-ba2f-8ac97eeb7fc1
issn:1214-9705

Subject:

Geologie. Meteorologie. Klimatologie, hnědé uhlí, dřevní odpad, popely, lignite, wood waste, ashes, co-combustion, trace elements distributions, 7, and 551

Type:

article, články, model:article, and TEXT

Format:

print, bez média, and svazek

Description:

Combustion of lignite with limestone, co-combustion of lignite with limestone and wood, and combustion of wood were performed in a circulating fluidised bed in 7 different combustion regimes. The in organic matter composition and properties of all input and output materials were characterized. For each com bustion regime the material streams and the boiler outputs were calculated. The total inorganic mass and the mass of selected trace elements in fuels (Cl, Zn, As, Se, Hg, and Pb) were based on the output of a 1 GW circulating fluidised-bed boiler; additionally, the concen trations of volatile elements (As, Se, Hg) in fly ash (FA) were evaluated in relation to the mass of FA. Element (Cl, Zn, As, Se, Hg, and Pb) enrichment in FA compared with BA was related to the ratio R between the co mbusted mass of organic wood wastes and total combusted fuel. Additionally, the unburned carbon in bottom ash (BA) and fly ash (FA) was determined, and sel ected elements were studied in unburned materials separated from BA. The results show that combustion of wood and/or co-combustion of lignite with wood waste brings about significant environmental benefits., Zdeněk Klika, Lucie Bartoňová and Jana Serenčíšová., and Obsahuje bibliografické odkazy

Language:

English

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Source:

Acta geodynamica et geomaterialia : | 2012 Volume:9 | Number:4 (168)

Harvested from:

CDK

Metadata only:

false