Potassium, chlorine, and sulfur in ash, particles, deposits, and corrosion during wood combustion in a circulating fluidized-bed boiler

Davidsson, Kent,1967Chalmers tekniska högskola,Chalmers University of Technology (author)

The effect of the addition of chlorine and/or sulfur to the fuel on fly ash composition, deposit formation, and superheater corrosion has been studied during biomass combustion in a circulating fluidized-bed boiler. The chlorine (HCl (aq)) and sulfur (SO2 (g)) were added in proportions of relevance for the potassium chemistry. The composition of the bottom and the fly ashes was analyzed. Gas and particle measurements were performed downstream of the cyclone before the convection pass and the flue gas composition was recorded in the stack with a series of standard instruments and an FTIR analyzer. At the position downstream of the cyclone, a deposit probe was situated, simulating a superheater tube. Deposits on the probe and initial corrosion were examined. It is concluded that addition of sulfur and chlorine increases the formation of submicron particles leading to deposition of potassium sulfate and chloride. The results compare well with earlier work based on laboratory-scale experiments concerning effects of chlorine and sulfur on potassium chemistry.

TEKNIK OCH TEKNOLOGIER Maskinteknik Energiteknik hsv//swe
ENGINEERING AND TECHNOLOGY Mechanical Engineering Energy Engineering hsv//eng
TEKNIK OCH TEKNOLOGIER Naturresursteknik Annan naturresursteknik hsv//swe
ENGINEERING AND TECHNOLOGY Environmental Engineering Other Environmental Engineering hsv//eng
BIOMASS-FIRED BOILERS
PILOT-SCALE
AGGLOMERATION
BEHAVIOR
ALKALI
COAL
AEROSOLS
NUCLEATION
HIGH-TEMPERATURE CORROSION
600-DEGREES-C
HIGH-TEMPERATURE CORROSION; BIOMASS-FIRED BOILERS; PILOT-SCALE; ALKALI; COAL; 600-DEGREES-C; AGGLOMERATION; NUCLEATION; AEROSOLS; BEHAVIOR

Åmand, Lars-Erik,1957Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)leam (author)
Leckner, Bo G,1936Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)ble (author)
Kovacevik, Borka,1972Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry(Swepub:gu)xkovbo (author)
Svane, Maria,1957Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry(Swepub:gu)xsvama (author)
Hagström, Magnus,1965Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry(Swepub:gu)xhagsm (author)
Pettersson, Jan B. C.,1962Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry(Swepub:gu)xpettj (author)
Pettersson, Jesper,1978Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)jpetter (author)
Asteman, Henrik,1973Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)asteman (author)
Svensson, Jan-Erik,1965Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)jes (author)
Johansson, Lars-Gunnar,1952Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)lg (author)
Chalmers tekniska högskolaInstitutionen för kemi (creator_code:org_t)

In:Energy & Fuels: American Chemical Society (ACS)21:1, s. 71-811520-50290887-0624

By the author/editor: Davidsson, Kent, ...; Åmand, Lars-Erik ...; Leckner, Bo G, 1 ...; Kovacevik, Borka ...; Svane, Maria, 19 ...; Hagström, Magnus ...; show more...; Pettersson, Jan ...; Pettersson, Jesp ...; Asteman, Henrik, ...; Svensson, Jan-Er ...; Johansson, Lars- ...; show less...

About the subject

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Mechanical Engin ...; and Energy Engineeri ...

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Environmental En ...; and Other Environmen ...

By the university: Chalmers University of Technology; University of Gothenburg

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