Unburnt carbon and ashing behavior for slow burning of lignite under oxygen-enriched combustion conditions


Haykiri-Acma H., Cekic Y., Yaman S.

ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS, cilt.41, ss.1326-1335, 2019 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 41 Konu: 11
  • Basım Tarihi: 2019
  • Doi Numarası: 10.1080/15567036.2018.1548511
  • Dergi Adı: ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
  • Sayfa Sayıları: ss.1326-1335

Özet

Oxygen-enriched combustion of coal has so far been investigated using either entrained flow reactors or fluidized-bed combustors where burning takes place rapidly due to high heating rates. On the contrary, this paper presents the results of slow burning of coal under oxygen-enriched combustion conditions. Ashing behavior of mineral matter-rich low-rank coal from Turkish Tekirdag-Malkara lignite under oxygen-enriched conditions was investigated to determine the effect of this combustion technique on unburnt carbon, mineralogical characteristics and the burning performance. These experiments showed that the influence of O-2 concentration on ashing is much more evident than the temperature during oxygen-enriched combustion.