Desulphurization of lignites by slow, fast, and flash pyrolysis and high intensity dry magnetic separation

Koca H., Kockar O. M., Koca S.

ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS, cilt.29, sa.16, ss.1457-1470, 2007 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 29 Sayı: 16
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1080/00908310600625772
  • Dergi Adı: ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1457-1470
  • Anahtar Kelimeler: desulphurization, magnetic separation, pyrolysis, FIXED-BED PYROLYSIS, PRODUCT YIELDS, SULFUR BEHAVIOR, MILD PYROLYSIS, ORGANIC MATRIX, COAL, RELEASE, PYRITE, REACTOR
  • Anadolu Üniversitesi Adresli: Hayır

Özet

Slow, fast and flash pyrolysis followed by high intensity dry magnetic ( HIDM) separation experiments were conducted to obtain improved solid fuels. Pyrolysis experiments were performed in three different apparatus, and important parameters of processes, temperature, particle size, residence time and heating rate were studied to determine the optimum conditions. Desulphurization of lignites by flash pyrolysis is more successful than slow and fast pyrolysis. At optimum conditions of pyrolysis, up to 58.15, 60.24, and 62.31% sulphur reductions were obtained in slow, fast and flash pyrolysis, respectively. Char, obtained from the pyrolysis experiments, was further cleaned by a Permroll HIDM separator. Sulphur reduction enhanced up to 82.68, 84.40, and 86.55% in the char of slow, fast and flash pyrolysis, respectively.