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http://dx.doi.org/10.9713/kcer.2011.49.1.114

Kinetic Studies of Pyrolysis and Char-$CO_2$ Gasification on Low Rank Coals  

Kang, Suk-Hwan (Plant Engineering Center, Institute for Advances Engineering(IAE))
Ryu, Jae-Hong (Plant Engineering Center, Institute for Advances Engineering(IAE))
Park, Soo-Nam (Plant Engineering Center, Institute for Advances Engineering(IAE))
Byun, Yong-Soo (Plant Engineering Center, Institute for Advances Engineering(IAE))
Seo, Seok-Jung (Plant Engineering Center, Institute for Advances Engineering(IAE))
Yun, Yong-Seung (Plant Engineering Center, Institute for Advances Engineering(IAE))
Lee, Jin-Wook (Plant Engineering Center, Institute for Advances Engineering(IAE))
Kim, Yong-Jeon (SK energy Institute of Technology)
Kim, Joo-Hoe (SK energy Institute of Technology)
Park, Sam-Ryong (SK energy Institute of Technology)
Publication Information
Korean Chemical Engineering Research / v.49, no.1, 2011 , pp. 114-119 More about this Journal
Abstract
Thermogravimetric analysis(TGA) was carried out for pyrolysis and char-$CO_2$ gasification of low rank Indonesian ABK coal and China lignite. The pyrolysis rate was successfully described by a two-step model adopting the modified Kissinger method. The shrinking core model, when applied to char-$CO_2$ gasification gave initial activation energy of 189.1 kJ/mol and 260.5 kJ/mol for the ABK coal and China lignite, respectively. Thus, the char-$CO_2$ gasification has been successfully simulated by the shrinking core model. In particular, the activation energy of char-$CO_2$ gasification calculated in this work is similar to the results on the anthracite coal, but considerable difference exists when other models or coal types are used.
Keywords
Pyrolysis; Char; $CO_2$ Gasification; Activation Energy; Frequency Factor;
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Times Cited By KSCI : 1  (Citation Analysis)
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