Combustion mechanism and ash-to-gas products of star anise residues: Atmosphere and temperature dependencies and joint optimization
Yükleniyor...
Dosyalar
Tarih
2023
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Sci LTD
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The efficient energy utilization of biomass is still being explored to lessen the heavy dependence on fossil fuels. This study aimed at characterizing the combustion behaviors, performances, ash-to-gas products, reaction mechanisms, and joint optimization of star anise (Illicium verum Hook. f. (SA)) residues in response to temper-ature, heating rate, and atmosphere type (N2/O2 versus CO2/O2). The main combustion stage of SA was between 150 and 580 degrees C. The combustion performance indices were higher in N2/O2 than CO2/O2. The estimated acti-vation energy varied between 168.26 and 241.77 kJ/mol. F1, F1.5, A1.5, and A2 well described the most likely reaction mechanisms. The energetically and environmentally multiple objectives were simultaneously optimized using artificial neural networks with the operational inputs of temperature and atmosphere type. The relative importance of the atmosphere type to the gaseous products were thus: aromatics < C-O < C--O < CO < CO2 < H2O < CH4. The combustion gaseous products were the same in both atmospheres. The SA ash was of K type with a high deposition risk in both atmospheres. Changing N2 to CO2 reduced the tendency of ash scaling and slagging.
Açıklama
Acknowledgement This research was financially supported by the National Natural Science Foundation of China (No. 51978175, 42177196) , the Scientific and Technological Planning Project of Guangzhou, China (No.202103000004) , Guangdong Basic and Applied Basic Research Foun-dation (No. 2022A1515010825) ,and Guangdong Province Science and Technology Planning Project, China (No. 2022A0505050076) . We would like to thank Miss. Yang at the Analysis and Test Center of Guangdong University of Technology for her assistance with TG-FTIR analysis.
Anahtar Kelimeler
Star Anise, Incineration, Second-Generation Biofuels, Kinetics, Thermodynamics, Tg-Ftir
Kaynak
Fuel
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
336
Sayı
Künye
Chen, T., Li, X., Liang, J., Evrendilek, F., Wen, X., Lin, S., & Liu, J. (2023). Combustion mechanism and ash-to-gas products of star anise residues: Atmosphere and temperature dependencies and joint optimization. Fuel, 336, 126812.
