Distribution of Potassium, Chlorine, and Sulfur between Solid and Vapor Phases during Combustion of Wood Chips and Coal
Journal article, 2003

Results are presented on the distribution of some (inorganic) elements between the solid and vapor phases in a circulating fluidized bed boiler during combustion of wood chips and coal. Samples were taken from all input and output solid material streams as well as from the gas phase at different locations in the boiler. Deposits on a specially designed deposition probe were also measured. An explanation is presented concerning the release and fate of potassium, chlorine, and sulfur during biomass combustion. The explanation is supported by the results from an additional test where hydrogen chloride was added to the combustion chamber. One of the most important factors affecting the reactivity of potassium toward chlorine in the combustion chamber appears to be the moisture content of the fuel.

Alkali

Fluidized bed

Deposits

ashes

Boiler

Author

Heije Miettinen Westberg

Department of Energy Conversion

Madelaine Byström

Bo G Leckner

Department of Energy Conversion

Energy & Fuels

0887-0624 (ISSN) 1520-5029 (eISSN)

Vol. 17 18-28

Subject Categories

Energy Engineering

Areas of Advance

Energy

Infrastructure

Chalmers Power Central