Mechanical dewatering characteristics of a Turkish Lignite


Cay M. S. , ÖZTÜRK İ. T.

INTERNATIONAL JOURNAL OF COAL PREPARATION AND UTILIZATION, 2019 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası:
  • Basım Tarihi: 2019
  • Doi Numarası: 10.1080/19392699.2019.1633312
  • Dergi Adı: INTERNATIONAL JOURNAL OF COAL PREPARATION AND UTILIZATION

Özet

The most obvious disadvantage of lignites is high water content (25-65%). In this study, experiments were carried out to determine the mechanical dewatering characteristics of Konya Ilgin lignite, which has 8935 kJ/kg low heating value and 45.15% water content. The main parameters investigated in the dewatering experiments were water/dry lignite ratio, pressure, and duration of compression. The tests were carried out by varying time from 5 to 20 min and by varying pressure from 100 to 600 bar. Results showed that the dewatering rate increased with the increase of water/dry lignite ratio, pressure, and duration of compression. The increase was not linear and tend to decrease with an increase in each variable. Pressure was more effective than duration of compression for reducing final moisture content.