Desulphurization of low-rank coals by low-temperature carbonization

R. Asmatulu*, N. Acarkan, G. Onal, M. S. Celik

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


A lignite sample from the Istanbul region with 14.18% inherent moisture, 11.01% ash, 1.86% total sulphur, 47.24% volatile matter, 41.75% fixed carbon and 5590 kcal kg-1 calorific value as dried basis has been subjected to a set of systematic low-temperature carbonization tests. The tests have been carried out as a function of particle size, temperature and heating time. A semicoke product containing 15.22% volatile matter, 16.67% ash, 68.04% fixed carbon contents with 63% desulphurization on the basis of total sulphur has been obtained under the optimum conditions of 650°C temperature and 50 minutes of heating time. The product has a calorific value of 6403 kcal kg-1 but does not have enough strength for use as a fuel and thus needs to be improved by briquetting.

Original languageEnglish
Pages (from-to)365-369
Number of pages5
JournalGeological Society Special Publication
Publication statusPublished - 1997


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