CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi'an, Shaanxi 710075, China.
CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi'an, Shaanxi 710075, China.
Bioresour Technol. 2017 Dec;245(Pt A):73-80. doi: 10.1016/j.biortech.2017.08.144. Epub 2017 Aug 24.
The combustion characteristics, kinetic analysis and selenium retention-emission behavior during co-combustion of high ash coal (HAC) with pine wood (PW) biomass and torrefied pine wood (TPW) were investigated through a combination of thermogravimetric analysis (TGA) and laboratory-based circulating fluidized bed combustion experiment. Improved ignition behavior and thermal reactivity of HAC were observed through the addition of a suitable proportion of biomass and torrefied. During combustion of blends, higher values of relative enrichment factors in fly ash revealed the maximum content of condensing volatile selenium on fly ash particles, and depleted level in bottom ash. Selenium emission in blends decreased by the increasing ratio of both PW and TPW. Higher reductions in the total Se volatilization were found for HAC/TPW than individual HAC sample, recommending that TPW have the best potential of selenium retention. The interaction amongst selenium and fly ash particles may cause the retention of selenium.
通过热重分析（TGA）和基于实验室的循环流化床燃烧实验相结合，研究了高灰分煤（HAC）与松木（PW）生物质和热解松木（TPW）共燃烧的燃烧特性、动力学分析和硒的保留-排放行为。通过添加适量比例的生物质和热解物，观察到 HAC 的点火性能和热反应性得到改善。在混合物燃烧过程中，飞灰中相对富集因子的更高值表明飞灰颗粒上冷凝挥发硒的最大含量，而底灰中的硒含量则减少。随着 PW 和 TPW 比例的增加，混合物中的硒排放量减少。与单独的 HAC 样品相比，在 HAC/TPW 中发现总硒挥发率有更高的降低，这表明 TPW 具有最好的硒保留潜力。硒与飞灰颗粒之间的相互作用可能导致硒的保留。
