Application potential of antibiotic fermentation residue for co-combustion with coal: Thermal behavior, gaseous products, and kinetics. (1st March 2023)

• Record Type: Journal Article
• Authors: Yang, Zhongyu; Bai, Mengyuan; Han, Tong; Bai, Xuyang; Tang, Xiaolong; Duan, Erhong; Kang, Aibin; Zheng, Zhiyang; Cheng, Fengfei
• Is Part Of: Fuel. Volume 335(2023)
• Publication Date: 2023-03-01
• Subjects: Antibiotic fermentation residue -- Coal -- Co-combustion -- Pollutant emission -- Thermal analysis kinetics; Fuel -- Periodicals; Coal -- Periodicals; Coal; Fuel; Periodicals; 662.6
• DOI: 10.1016/j.fuel.2022.126953
• Languages: English
• ISSNs: 0016-2361

Abstract

Graphical abstract: Highlights: Application potential of AFR for co-combustion with coal is evaluated by TG/DSC-MS. Combustion characteristics are improved including ignition, burnout, and stability. Significant interaction exists in both AFR and coal combustion stages. The addition of AFR reduces the release of SO2 but increases the emission of NO. The random nucleation mechanism can well describe the co-combustion process. Abstract: Co-combustion is an effective measure to achieve high efficiency of fuel and energy and promote the reduction of pollutants. As a high-protein, low-fiber, and energy-bearing biomass, antibiotic fermentation residues have the potential to be co-fired with coal. The behavior of co-combustion is studied by TG/DSC-MS method and the result shows that the effects of interaction between AFR and coal are presented in the burn process. The addition of AFR reduces ignition temperature by 25% − 45%, reduces burnout temperature by 2.7%-7.4% and improves the stability of combustion. Moreover, the normalized analysis of gaseous products shows that the emission of NH3 and NO are promoted, while NO2 and SO2 are inhibited. Kinetic analysis shows that co-combustion leads to the increase of apparent activation energy. Random nucleation and growth mechanism can well describe the combustion process, and the kinetic index decreases with the reaction process.