生物质与烟煤共燃烧特性及砷的固持。
Combustion characteristics and arsenic retention during co-combustion of agricultural biomass and bituminous coal.
机构信息
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.
出版信息
Bioresour Technol. 2016 Aug;214:218-224. doi: 10.1016/j.biortech.2016.04.104. Epub 2016 Apr 23.
A combination of thermogravimetric analysis (TG) and laboratory-scale circulated fluidized bed combustion experiment was conducted to investigate the thermochemical, kinetic and arsenic retention behavior during co-combustion bituminous coal with typical agricultural biomass. Results shown that ignition performance and thermal reactivity of coal could be enhanced by adding biomass in suitable proportion. Arsenic was enriched in fly ash and associated with fine particles during combustion of coal/biomass blends. The emission of arsenic decreased with increasing proportion of biomass in blends. The retention of arsenic may be attributed to the interaction between arsenic and fly ash components. The positive correlation between calcium content and arsenic concentration in ash suggesting that the arsenic-calcium interaction may be regarded as the primary mechanism for arsenic retention.
采用热重分析（TG）和实验室循环流化床燃烧实验相结合的方法，研究了典型农业生物质与烟煤共燃烧过程中的热化学、动力学和砷的固存行为。结果表明，在适当的比例下添加生物质可以提高煤的着火性能和热反应性。在煤/生物质共混物燃烧过程中，砷富集在飞灰中，并与细颗粒结合。随着共混物中生物质比例的增加，砷的排放减少。砷的固存可能归因于砷与飞灰成分之间的相互作用。灰中钙含量与砷浓度之间的正相关性表明，砷-钙相互作用可能是砷固存的主要机制。
Zotero 插件