Comparison of Combustion and Pyrolysis Behavior of the Peanut Shells in Air and N 2: Kinetics, Thermodynamics and Gas Emissions

Zhenghui Xu, Xiang Xiao, Ping Fang, Lyumeng Ye, Jianhang Huang, Haiwen Wu, Zijun Tang and Dongyao Chen
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Zhenghui Xu: South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China
Xiang Xiao: South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China
Ping Fang: South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China
Lyumeng Ye: School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510655, China
Jianhang Huang: South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China
Haiwen Wu: South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China
Zijun Tang: South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China
Dongyao Chen: South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China

Sustainability, 2020, vol. 12, issue 2, 1-14

Abstract: The influences of four heating rates on the combustion and pyrolysis behavior in the N 2 and air atmosphere were investigated by the Fourier transform infrared spectrometry (FTIR) and thermogravimetric (TG) analysis. the distributed activation energy model (DEAM) and Flynn-Wall-Ozawa (FWO) were used to estimate Ea and A , ΔH , ΔG and ΔS . Experimental results showed that the similar thermal behavior emerged, but the temperatures in the air and N 2 atmospheres representing the end of the reaction were about 500 °C and 550 °C, respectively. The results of FTIR showed the peak positions were basically the same, but the concentrations of aromatics, aldehydes and ketones produced by pyrolysis in the N 2 atmosphere were higher. When the heating rate was 20 K/min, the comprehensive combustion parameters were 56.442 and 6.871 × 10 −7 % 2 /(min 2 • K 3 ) in the air and N 2 atmospheres, respectively, indicating that the peanut shells had great potential to become bioenergy.

Keywords: peanut shells; biomass; kinetic reaction model; kinetic transformation; thermodynamic transformation (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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