A parametric study on coal gasification for the production of syngas

GÜNGÖR A., Ozbayoglu M., Kasnakoglu C., BIYIKOĞLU A., Uysal B. Z.

CHEMICAL PAPERS, cilt.66, sa.7, ss.677-683, 2012 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 66 Sayı: 7
  • Basım Tarihi: 2012
  • Doi Numarası: 10.2478/s11696-012-0164-0
  • Dergi Adı: CHEMICAL PAPERS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.677-683
  • Anahtar Kelimeler: coal gasification, syngas production, gasification simulation, chemical process optimization, FLUIDIZED-BED, GASIFIER, COMBUSTION, FUELS
  • Akdeniz Üniversitesi Adresli: Evet

Özet

In this parametric study, the effects of coal and oxidiser type, air-to-fuel ratio, steam-to-fuel ratio, reactor temperature, and pressure on H-2 and CO amounts at the gasifier output, H-2/CO, and higher heating value of the syngas produced have been calculated using a coal gasification model. Model simulations have been performed to identify the optimum values which are assumed to be 100 % for both cold gas efficiency and carbon conversion efficiency in the gasification process. From this study, it may be observed that the moisture content of the coal type is of crucial importance for the air gasification process; the O-2 content of similar coals (taking into consideration the moisture and H-2 content) is of significant importance for the air gasification process. When compared with air gasification, air-steam gasification becomes a more effective coal gasification method. The optimum working condition for air-steam gasification is to carry out the process at one atmosphere. High gasifier temperatures are not needed for the air-steam gasification of coal.