The effects of bed height and initial moisture concentration on drying lignite in a batch fluidized bed

Calban T.

ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS, cilt.28, sa.5, ss.479-485, 2006 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 28 Sayı: 5
  • Basım Tarihi: 2006
  • Doi Numarası: 10.1080/009083190928029
  • Dergi Adı: ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.479-485
  • Anahtar Kelimeler: bed height, coal, drying, fluidized bed, initial moisture concentration, TEMPERATURE, SOLIDS, SIZE
  • Atatürk Üniversitesi Adresli: Hayır

Özet

In this study, drying of a lignite from Erzurum Ispir-Karahan province, with air in a batch fludized bed, was investigated. In the experiments, effects of bed height and initial moisture concentration of the coal on the drying behavior were studied. It was found that the drying rate increased with a decrease in bed height. Also, coal particles with an initial lower moisture content showed a marginal decrease of drying rate compared with higher moisture content particles. It was also observed that the equilibrium moisture content, and the time taken to reach the equilibrium moisture content, decreased with decreasing initial moisture concentration, while the critical moisture content generally decreased. Also, it fixed with decreasing bed height, while the critical moisture content increased.