Beneficiation of lignites by heat treatment


Önal G., Acarkan N., Özer M., Asmatülü R., Özdingiş M.

16th International Coal Preparation Congress, ICPC 2010, Lexington, KY, Amerika Birleşik Devletleri, 25 - 30 Nisan 2010, ss.617-621 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası:
  • Basıldığı Şehir: Lexington, KY
  • Basıldığı Ülke: Amerika Birleşik Devletleri
  • Sayfa Sayıları: ss.617-621
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

The proven Turkish coal reserves, particularly of lignites, amount to 10 billion tons. The majority of these lignites are characterized by their high ash (14% to 42%), moisture (15% to 55%) and volatile matter (16% to 38%) contents. In addition, the lignites contain sulfur levels ranging from 1% to 5%. As most of these coals are consumed without any upgrading processes; high moistures, low calorific values and high sulfur contents become the main causes of coal based air pollution. However, the advanced coal cleaning technologies can achieve substantial reductions in coal-based emissions. In this paper, low carbonization tests were carried out on lignite samples from Istanbul-Yeniköy region. The results indicate that these low-rank coals can be upgraded to the desired quality both in terms of calorific value and sulfur content.