Correlation between the mineral matter and the combustion kinetics of some Turkish lignites
- Istanbul Technical Univ., Istanbul (Turkey). Chemical and Metallurgical Engineering Faculty
Coal is a complex mixture of organic and inorganic materials. The inorganic portion of coal is the sum of all mineral matter and inorganically bound elements that are present in coal. Coal contains significant and variable amounts of largely incombustible mineral matter which could influence the combustion characteristics of it, which is important in the design of coal fired boilers. In this investigation, kinetic evaluation of the combustion TG curves obtained at defined conditions for 23 Turkish lignites was achieved. A computer program in BASIC which enables regression analysis to be carried out was used to obtain the kinetic parameters from experimental nonisothermal TG data. In the kinetic analysis of curves 20 different model equations of possible solid-state rate controlling mechanism were considered. It was found that experimental TG curves were correlated well with Prout-Tompkins` model equation. Calculated activation energy values of lignites were correlated with their Ca, Mg, K and Na contents.
- OSTI ID:
- 504593
- Report Number(s):
- CONF-960954-; TRN: IM9733%%8
- Resource Relation:
- Conference: 13. annual international Pittsburgh coal conference, Pittsburgh, PA (United States), 3-7 Sep 1996; Other Information: PBD: 1996; Related Information: Is Part Of Thirteenth annual international Pittsburgh coal conference: Proceedings. Volume 1; Chiang, S.H. [ed.]; PB: 786 p.
- Country of Publication:
- United States
- Language:
- English
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