可再生能源2018，Vol.36Issue(4)：484-490,7.
城市生活垃圾中再生PVC富氧燃烧重金属迁移特性分析
Evaluation and analysis of migration characteristics of heavy metals in recycled PVC from municipal solid waste under oxy-fuel combustion
摘要
Abstract
To investigate migration characteristics of heavy metals (Zn,Pb,Cd,Cr,Cu and Ni) in recycled PVC under oxy-fuel combustion, a comparison of thermodynamic equilibrium calculations and experimental analysis using tube furnace was performed in this study. The result indicated that migration characteristics of heavy metals were strongly influenced by temperature, and volatile gases formed more easily at high temperature with the presence of chloride and heavy metals, especially for Zn and Pb. At 1 000 ℃, there was no significant difference in migrating behavior of heavy metals Zn, Pb and Cd during the atmosphere of 20%O2/80%CO2in contrast to 20% O2/80% N2(simulated air). However, in the bottom ash, the concentration of low-volatile heavy metals (like Cr,Cu and Ni) was larger under the atmosphere of 20%O2/80%CO2. With the increasing of O2concentration, the oxy-fuel combustion showed inhibiting effect on volatilization of heavy metals.关键词
重金属/富氧燃烧/再生PVC/化学热力平衡Key words
heavy metal/oxy-fuel combustion/recycled PVC/thermodynamic equilibrium calculation分类
能源科技引用本文复制引用
廖艳芬,余权恒,唐玉婷,余昭胜,马晓茜..城市生活垃圾中再生PVC富氧燃烧重金属迁移特性分析[J].可再生能源,2018,36(4):484-490,7.基金项目
国家自然科学基金项目(51406058) （51406058）
广东省能源高效清洁利用重点实验室项目(2013A061401005) （2013A061401005）
中国博士后科学基金特别资助项目(2016T90781) （2016T90781）
国家质检公益项目(20140159) （20140159）
广州市科技计划项目(201604020022). （201604020022）
