Till sidans topp

Sidansvarig: Webbredaktion
Sidan uppdaterades: 2012-09-11 15:12

Tipsa en vän
Utskriftsversion

Potassium, chlorine, and … - Göteborgs universitet Till startsida
Webbkarta
Till innehåll Läs mer om hur kakor används på gu.se

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

Artikel i vetenskaplig tidskrift
Författare Kent Davidsson
Lars-Erik Åmand
Bo Leckner
Borka Kovacevik
Maria Svane
Magnus Hagström
Jan B. C. Pettersson
Jesper Pettersson
Henrik Asteman
Jan-Erik Svensson
Lars-Gunnar Johansson
Publicerad i Energy & Fuels
Volym 21
Nummer/häfte 1
Sidor 71-81
ISSN 0887-0624
Publiceringsår 2007
Publicerad vid Institutionen för kemi
Sidor 71-81
Språk en
Länkar dx.doi.org/10.1021/ef060306c
https://gup.ub.gu.se/file/194027
Ämnesord HIGH-TEMPERATURE CORROSION; BIOMASS-FIRED BOILERS; PILOT-SCALE; ALKALI; COAL; 600-DEGREES-C; AGGLOMERATION; NUCLEATION; AEROSOLS; BEHAVIOR
Ämneskategorier Termisk energiteknik, Kemisk energiteknik, Miljöteknik

Sammanfattning

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.

Sidansvarig: Webbredaktion|Sidan uppdaterades: 2012-09-11
Dela:

På Göteborgs universitet använder vi kakor (cookies) för att webbplatsen ska fungera på ett bra sätt för dig. Genom att surfa vidare godkänner du att vi använder kakor.  Vad är kakor?