Investigation of agglomeration rates of two Turkish lignites

Gurses A., DOYMUS K., DOGAR C., YALCIN M.

ENERGY CONVERSION AND MANAGEMENT, cilt.44, sa.8, ss.1247-1257, 2003 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 44 Sayı: 8
  • Basım Tarihi: 2003
  • Doi Numarası: 10.1016/s0196-8904(02)00142-5
  • Dergi Adı: ENERGY CONVERSION AND MANAGEMENT
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1247-1257
  • Anahtar Kelimeler: brown coal, beneficiation, oil agglomeration, agglomeration kinetics, SELECTIVE OIL AGGLOMERATION, MINERAL MATTER CONTENT, HIGH-RANK COALS, STRUCTURAL CHARACTERISTICS, OXIDATION REACTIONS, BEYPAZARI LIGNITE, AQUEOUS-SOLUTION, VEGETABLE-OILS, AIR OXIDATION, BROWN-COAL
  • Atatürk Üniversitesi Adresli: Evet

Özet

Oil agglomeration is an effective technique for recovering and reducing the ash of coal fines. In this study, the effects of some parameters that markedly influence the effectiveness of selective oil agglomeration, such as solids concentration, amount of agglomeration oil and agglomeration time, on the recovery of agglomerate and the ash and the pyritic sulphur content of the agglomerates were investigated. In order to delineate the relation between the formation rate of coal-oil agglomerates and the removal of ash and pyritic sulphur, the rates of agglomeration for Balkaya and Askale lignites were also calculated by using experimental data. It was found that the success of the process in terms of both recovery and selectivity for lignites was highly dependent on the parameters and control of the agglomeration rate. (C) 2002 Elsevier Science Ltd. All rights reserved.