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Liu Shengyong, Wang Yanling, Bai Bing, Su Chaojie, Yang Guofeng, Zhang Fei. Analysis on combustion kinetics of corn stalk briquetting densification fuel[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2011, 27(9): 287-292.
Citation: Liu Shengyong, Wang Yanling, Bai Bing, Su Chaojie, Yang Guofeng, Zhang Fei. Analysis on combustion kinetics of corn stalk briquetting densification fuel[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2011, 27(9): 287-292.

Analysis on combustion kinetics of corn stalk briquetting densification fuel

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  • Received Date: March 26, 2010
  • Revised Date: July 14, 2011
  • Published Date: September 29, 2011
  • To further realize biomass briquette fuel of high efficiency combustion, the dynamic analysis was performed for the corn stalk briquette. The corn straws in different sizes (1, 0.25 mm) and different heating rate (10, 20, 40℃/min) had been studied using thermogravimetric analysis, and then were treated by first order or pseudo-second order kinetics. Thermo gravimetry、digital thermogravimetry and differential thermal could be obtained. The kinetic parameters like activation energy and frequency factor could be calculated by using thermo gravimetry and digital thermogravimetry. Thermal decomposition kinetics equation of corn straws was obtained. The results showed that corn stalk briquette combustion process could be divided into three parts: endothermic and dehydration,precipitation of volatile and the combustion reaction,fixed carbon combustion reaction. Different rate of temperature and sample fineness had some influences on the activation energy and the maximum weight loss rate. The activation energy of cornstalk briquette reached maximum at heating rate of 20℃/min. The study could provide theoretical basis for further research on the actual pyrolysis process of biomass briquette fuel and determine design parameters of burning equipments.
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