Physical and physicochemical cleaning of lignite and the effect of cleaning on biodesulfurization

Aksoy D., Aytar Çelik P., Toptas Y., Çabuk A., Koca S., Koca H.

FUEL, cilt.132, ss.158-164, 2014 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 132
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1016/j.fuel.2014.04.090
  • Dergi Adı: FUEL
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.158-164
  • Anahtar Kelimeler: Lignite cleaning, Flotation, Multigravity separator, Biodesulfurization, COAL, SULFUR, DESULFURIZATION, REMOVAL
  • Eskişehir Osmangazi Üniversitesi Adresli: Evet

Özet

In this work, physical, physicochemical and biological processes were combined to decrease the sulfur and ash content of finely ground coal. Two separation methods - flotation and a multigravity separator (MGS) - were studied to determine the optimum conditions of separation. The results showed that it is possible to obtain clean lignite that contains 34.36% ash and has a 77.39% combustible recovery by using MGS and 39.22% ash with a 37.38% combustible recovery by using flotation techniques. When the MGS and flotation products were treated by biological methods, the total sulfur contents of lignite were reduced by 54.39% and 47.08%, respectively, whereas the ash contents of MGS and flotation product were decreased by 67.61% and 60.95%, respectively. (C) 2014 Elsevier Ltd. All rights reserved.