Oxy-fuel and air atmosphere combustions of Chinese medicine residues: Performances, mechanisms, flue gas emission, and ash properties
Yükleniyor...
Dosyalar
Tarih
2022
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Pergamon-Elsevier Science Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
This study aims to quantify the combustion performances, mechanisms, and ash characteristics of Chinese medicine residues (CMR) in the air and oxy-fuel atmospheres. The CMR combustion underwent water loss (<150 degrees C) and the decomposition of the main organic components (150-560 degrees C). The CMR combustion performed better in the air than 8-2/CO2-O-2 atmosphere experimentally, as was also evidenced by the joint optimization based on artificial neural network. The rising oxygen fraction of the three oxy-fuel atmospheres improved the oxy-fuel combustion performance by 76.7%. The air atmosphere led to a higher activation energy at the start (275.15 kJ/mol) and end (520.91 kJ/mol) of the main reaction, while the oxy-fuel atmosphere resulted in a higher activation energy of 400.22 kJ/mol with the conversion degree of 0.7. Its reaction mechanism followed the sequence type (Fn) and changed from F3 to F2 in the 8-2/CO2-O-2 atmosphere and from F2.4 to F2.5 in the air atmosphere and flue gas functional groups included CO2, H2O, C=O, and C-(O)H. The oxy-fuel atmosphere was more prone to slagging than the air atmosphere. The ash in the oxy-fuel atmosphere was easily formed calcium carbonate and calcium hydroxyphosphate. (C) 2021 Elsevier Ltd. All rights reserved.
Açıklama
This research was financially supported by the National Natural Science Foundation of China (No. 51978175), the Scientific and Technological Planning Project of Guangzhou, China (No.202103000004), the Science and Technology Planning Project of Yunfu, Guangdong Province, China (No. 2020040401).
Anahtar Kelimeler
Pollution Control, Temperature Dependency, Thermal Decomposition, Reaction Mechanisms, Kinetics and Thermodynamics, Tg-Ftir
Kaynak
Renewable Energy
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
182
Sayı
Künye
Chen, Z., Liu, J., Chen, H., Ding, Z., Tang, X., & Evrendilek, F. (2022). Oxy-fuel and air atmosphere combustions of Chinese medicine residues: performances, mechanisms, flue gas emission, and ash properties. Renewable Energy, 182, 102-118.
