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Co-Combustion of dried sewage sludge and coal/wood in CFB-A Search for Factors Influencing Emissions

Lars-Erik Åmand (Institutionen för energiomvandling) ; Heije Miettinen Westberg (Institutionen för energiomvandling) ; Maria Karlsson (Institutionen för energiomvandling) ; Bo Leckner (Institutionen för energiomvandling) ; K. Lücke ; S. Budinger ; E-U. Hartge ; J. Werther
In Proceedings of the 16th International Conference on Fluidized Bed Combustion--FBC01, held in Reno, Nevada, USA, May 13-16, 2001 FBC01-0108, (2001)
[Konferensbidrag, refereegranskat]

Co-combustion of sewage sludge with either coal or wood as base fuels was investigated in two CFB units, one laboratory scale combustor and one pilot scale boiler of industrial size. The investigation was focused on general combustion performance and flue gas emissions. It was found that cocombustion with dry sewage sludge can be carried out within the range investigated (a sludge fraction of less than 50% of the energy supply) without any problems. The NO emission could be high because of the high nitrogen content of the sludge, but it was shown that the reduction in the CFB is also high and the resulting emission is only moderate. The same is the case with the other emissions recorded (CO, N2O). Sulphur emissions from combustion of the sludge is a consequence of sulphur components originating from the organic part of the sludge (sulphur-containing proteins for example).

Nyckelord: Fluidized bed combustion; Co-combustion; Sewage sludge; Coal; Wood

The 16th International Conference on Fluidized Bed Combustion, FBC01, was held in May 13-16, 2001 in Reno, Nevada, USA. The proceedings was edited by Donald W Geiling and published electronically (on a CD) by The American Society of Mechanically Engineers, (ASME).

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Denna post skapades 2016-06-29. Senast ändrad 2017-10-03.
CPL Pubid: 238659


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