Sulphur reduction in the combustion of lignite by lime addition

Önal G., Mustafaev I., Özer M.

22nd Annual International Pittsburgh Coal Conference 2005, PCC 2005, Pittsburgh, PA, United States Of America, 12 - 15 September 2005, vol.1, pp.628-631 identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 1
  • City: Pittsburgh, PA
  • Country: United States Of America
  • Page Numbers: pp.628-631
  • Istanbul Technical University Affiliated: Yes


In this study, the effect of adding lime to a high-sulphur lignitic coal on the SO2 reduction has been investigated with the aim of forming CaSO4 in the ash product. Tuncbilek lignite containing 2.6 %S has been used in the experimental work. The method of adding lime, the effect of coal size, the contact time between lime and coal have been investigated. The results show that when lime suspension is sprayed onto the coal, the sulphur capture ratio increases with decreasing particle size. Upon combustion of lime coated coal, 32% combustible sulphur was found to remain in the ash.