Influence of phosphorus on sulphur capture during co-firing

• Interference from phosphorus on sulphur capture during co-firing of sludge with wood has been investigated in a circulating fluidised bed boiler.Chemical equilibrium analyses were performed on the combustion system to complement the experimental results. It was found that the relativelyhigh content of phosphorus in municipal sewage sludge interferes with the sulphur capture by occupying calcium, which otherwise would beavailable for reaction with sulphur. This fact must be taken into account when sulphur capture strategies are decided for reduction of sulphurdioxide emissions from sewage sludge as an additional fuel.q 2006 Elsevier Ltd. All rights reserved.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Naturresursteknik -- Annan naturresursteknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Environmental Engineering -- Other Environmental Engineering (hsv//eng)

Nyckelord

Co-combustion

Sewage sludge

Sulphur capture

Phosphorus interference

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