State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074 Hubei, People's Republic of China.
State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074 Hubei, People's Republic of China.
Waste Manag. 2020 Feb 1;102:486-491. doi: 10.1016/j.wasman.2019.11.015. Epub 2019 Nov 19.
In order to address slagging, fouling and high-temperature corrosion problems caused by alkali metals in Municipal Solid Waste (MSW), in-situ measurement of alkali metal in MSW incinerators is needed. The paper presents experimental measurements of temperatures and alkali metal concentrations in two MSW incinerators based on Flame Emission Spectroscopy (FES). Through the analysis of spontaneous emission spectra and a calibration procedure, the concentration of gas phase sodium (Na) and potassium (K), temperature and thermal radiation in the incinerator were in-situ measured by a portable spectral system simultaneously. Experimental results showed MSW composition has significant effect on the measured gaseous Na and K. Higher volatile content in MSW may enhance the alkali metal emission. Besides that, the released gaseous Na and K in the two incinerators are correlated with temperature in incinerators. The study provided a low cost and effective solution for in-situ measurement of temperature and alkali metal concentration in MSW incinerators.
为了解决城市固体废物（MSW）中碱金属引起的结渣、积垢和高温腐蚀问题，需要对 MSW 焚烧炉中的碱金属进行原位测量。本文通过火焰发射光谱（FES）对基于火焰发射光谱（FES）的两种 MSW 焚烧炉中的温度和碱金属浓度进行了实验测量。通过对自发发射光谱的分析和校准程序，使用便携式光谱系统同时对焚烧炉中的气相钠（Na）和钾（K）浓度、温度和热辐射进行了原位测量。实验结果表明，MSW 成分对测量的气态 Na 和 K 有显著影响。MSW 中较高的挥发性含量可能会增强碱金属的排放。此外，两个焚烧炉中释放的气态 Na 和 K 与焚烧炉中的温度相关。该研究为 MSW 焚烧炉中温度和碱金属浓度的原位测量提供了一种低成本、有效的解决方案。
