Key Laboratory of Energy Thermal Conversion and Control of the Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, 210096, Jiangsu, China; School of Chemical and Process Engineering, University of Leeds, Leeds, UK.
Key Laboratory of Energy Thermal Conversion and Control of the Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, 210096, Jiangsu, China.
Environ Pollut. 2018 Aug;239:21-29. doi: 10.1016/j.envpol.2018.04.004. Epub 2018 Apr 7.
This work presents studies on the co-combustion of anthracite coal and wood pellets in fluidized bed. Prior to the fluidized bed combustion, thermogravimetric analysis are performed to investigate the thermodynamic behavior of coal and wood pellets. The results show that the thermal decomposition of blends is divided into four stages. The co-firing of coal and wood pellets can promote the combustion reaction and reduce the emission of gaseous pollutants, such as SO and NO. It is important to choose the proportion of wood pellets during co-combustion due to the low combustion efficiency caused by large pellets with poor fluidization. Wood pellets can inhibit the volatilization of trace elements, especially for Cr, Ni and V. In addition, the slagging ratio of wood pellets ash is reduced by co-firing with coal. The research on combustion of coal and wood pellets is of great significance in engineering.
本工作研究了在流化床中无烟煤和木屑颗粒的共燃烧。在流化床燃烧之前，进行了热重分析以研究煤和木屑颗粒的热力学行为。结果表明，混合物的热分解分为四个阶段。煤和木屑颗粒的共燃烧可以促进燃烧反应，并减少 SO 和 NO 等气态污染物的排放。由于大颗粒流化不良导致燃烧效率低，因此在共燃烧过程中选择木屑颗粒的比例非常重要。木屑颗粒可以抑制微量元素的挥发，特别是 Cr、Ni 和 V。此外，与煤共燃烧可以降低木屑颗粒灰的结渣率。煤和木屑颗粒的燃烧研究在工程中具有重要意义。
