Beneficiation of Turkish lignites by thermal treatment and magnetic separation
Conference
·
OSTI ID:20013496
In this paper, the improvement of Turkish lignites by semi-coking and REMS magnetic separation, in two stages, is discussed. The oxidation and decomposition of pyrite through the thermal treatment result in the formation of iron oxide and pyrrhotite on the surface. In addition to pyrite, part of the organic sulfur is also removed. After thermal treatment of lignites at temperatures ranging from 370 to 650 C, the application of REMS magnetic separator produces a product higher in calorific value and lower in sulfur content. The product can be utilized after briquetting. The volatile gases can also be used after sulfur removal. This process appears to be feasible as a clean coal manufacture from the point of energy efficiency. A short economic analysis is also presented.
- Research Organization:
- Istanbul Technical Univ. (TR)
- OSTI ID:
- 20013496
- Country of Publication:
- United States
- Language:
- English
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