Combustion of the banana Pseudo-stem hydrochar by the High-Pressure CO2-Hydrothermolysis: Thermal conversion, kinetic, and emission analyses

Jiang，Fenghao1; Cao，Daofan2; Zhang，Yan1; Hu，Shunxuan1; Huang，Xiaohe3; Ding，Yutian4; Wu，Changning4,5; Li，Junguo4,5; Ding，Yulong2; Liu，Ke1,4,5

2023

10.1016/j.fuel.2022.125798

FUEL   Impact Factor & Quartile

0016-2361

Due to slow degradation and potentially carrying fungus of banana pseudo-stem, the irresponsibly disposed (such as optionally dumping and burning on the spot) of banana pseudo-stem caused severe environmental problems and fungus disease. However, the combustion efficiency of the banana pseudo-stem was limited by the higher moisture and lower heating value. The high-pressure CO-hydrothermolysis provides an efficient strategy for upgrading the fuel quality and combustion characteristics. In this study, the combustion characteristics and emission analyses of the sample after and before treatment were investigated by TG–FTIR. Meanwhile, the oxidation reaction kinetics of the sample was established using the Friedman method. The results showed that the “coal-like” fuel, higher heating value (HHV) between 13.64 and 25.76 MJ/kg, was produced from banana pseudo-stem by the high-pressure CO-hydrothermolysis. The ignition temperature of the sample after treatment is higher than that of the banana pseudo-stem. However, the combustion character index of the sample after treatment at 160 °C (BP-160) is the best among all samples, but that of the sample after treatment at 280 °C (BP-280) is the lowest. The sample after treatment has the higher combustion reactivity except for BP-280. The averaged activation energy values of the sample after treatment decrease with the increased temperature and are higher than that of BP, except for BP-280. The carbon emission (CO + CO), SO and N species emission (NO + NO) was reduced during sample combustion after treatment. Overall, the high-pressure CO-hydrothermolysis is a promising treatment technology for minimizing and energy utilization of banana waste.

Banana pseudo-stem Combustion performance Emission analyses High-pressure CO2-hydrothermolysis TG–FTIR

English

First ; Corresponding

Guangdong Province Introduction of Innovative R&D Team[2016ZT06N532];Shenzhen Government[KYTDPT20181011104002];Development and Reform Commission of Shenzhen Municipality[XMHT20190203001];

ENGINEERING

2-s2.0-85138082712

Scopus

1.Department of Chemistry,Southern University of Science and Technology,Shenzhen,518055,China
2.Birmingham Centre for Energy Storage (BCES) & School of Chemical Engineering,University of Birmingham,United Kingdom,B15 2TT,United Kingdom
3.Department of Thermal Engineering,School of Energy and Power Engineering,University of Shanghai for Science and Technology,Shanghai,200093,China
4.School of Innovation and Entrepreneurship,Southern University of Science and Technology,Shenzhen,518055,China
5.Clean Energy Institute,Academy for Advanced Interdisciplinary Studies,Southern University of Science and Technology,Shenzhen,518055,China

Jiang，Fenghao,Cao，Daofan,Zhang，Yan,et al. Combustion of the banana Pseudo-stem hydrochar by the High-Pressure CO2-Hydrothermolysis: Thermal conversion, kinetic, and emission analyses[J]. FUEL,2023,331.

Jiang，Fenghao.,Cao，Daofan.,Zhang，Yan.,Hu，Shunxuan.,Huang，Xiaohe.,...&Liu，Ke.(2023).Combustion of the banana Pseudo-stem hydrochar by the High-Pressure CO2-Hydrothermolysis: Thermal conversion, kinetic, and emission analyses.FUEL,331.

Jiang，Fenghao,et al."Combustion of the banana Pseudo-stem hydrochar by the High-Pressure CO2-Hydrothermolysis: Thermal conversion, kinetic, and emission analyses".FUEL 331(2023).