秸秆与油泥混合成型燃料燃烧过程及动力学研究

doi:10.3969/j.issn.1673-5854.2017.04.008

Abstract

Abstract: In order to explore the combustion performance of agricultural biomass, three kinds of briquette fuels of sludge and straws (corn stalk, bean stalk, wheat straw) were used as experimental materials for isothermal combustion experiment, the combustion characteristics of briquette fuels were studied and analyzed. And the reaction kinetics were analyzed. The results showed that with the increase of temperature, the maximum peaks of combustion of 3 briquette fuels were advanced, the burn-off times decreased significantly and the maximum weight loss rates increased, but the burning weight loss curves were consistent at last. The reaction orders of the isothermal reaction processes of 3 briquette fuels at the temperature of 750-950℃ were 1.2-1.4, 0.9-1.1 and 1.0-1.2, respectively, the activation energies were 55-57, 50-53 and 49-55 kJ/mol, and the frequency factors were 57-113, 35-74 and 76-103 s^-1. The combustion of 3 briquette fuels followed the essential dynamic equation of combustion and could be described by first order reaction. The straw type had no significant influence on the combustion performance of blended briquette.

Key words: sludge, straw, isothermal combustion, combustion characteristics, reaction kinetics

CLC Number:

TQ35
S216

SUN Wenyang, WANG Liming, MA Chao, MA Yanru, LÜ Yang, FENG Kang. Combustion and Kinetics of Straw and Sludge Briquette Fuel[J]. bce, 2017, 51(4): 53-58.

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Combustion and Kinetics of Straw and Sludge Briquette Fuel

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