Cofiring coal and straw in a 150 MWe power boiler experiences

In 1995 ELSAM/MIDTKRAFT equipped the 150MW(e) pulverised coal-fired Studstr up power station, unit 1, for a technology demonstration cofiring of coal a nd straw. The conversion consisted of establishing a straw pre-processing p lant and modifying the burner system. After plant commissioning in January 1996, a 2-year demonstration program was initiated. The objective of the pr ogram was to evaluate the influence of cofiring on boiler plant performance , combustion chemistry, heat surface deposits and corrosion, residue qualit y, emissions, and selective catalytic reduction (SCR) systems. This paper p resents the plant conversion and results from the demonstration period. (C) 2000 Elsevier Science Ltd. All rights reserved.