Michael Witzing, President, Plainfield Renewable Energy

Project Design• The project uses a fluidized bed staged gasifier system• Gasifier vessel:– Contains a sand bed which becomes fluidized by air blown in frombelow– Fuel is injected above the bed and is gasified– Overfire air is introduced above the bed to complete the combustion• Heat recovery steam generator• Air pollution control:– Selective non-catalytic reduction (SNCR) – NOx control– Multiclone – particulate matter control– Spray Dryer Absorber (Scrubber) – SO2 and acid gas control– Fabric Filter Baghouse – particulate matter control5