摘要
对煤中砷的含量、分布、赋存状态等地球化学特征进行了综述,分析了煤炭燃烧过程中砷的迁移转化行为与释放特性,指出煤中砷的燃烧释放不仅与砷的物理化学性质有关,更取决于煤中的浓度、赋存状态及燃烧工况等因素。进一步讨论了天然钙基材料燃煤固砷技术及燃煤砷污染控制的研究现状。
The geochemical properties of content, distribution and existence mode of As in coal are summarized. The behavior of transition and transformation of As in coal combustion is analyzed. It is displayed that the combustion and evolution of As in coal is not only associated with its physicochemical properties, but also rests with the factors of concentration, existence mode and combustion condition, etc. The technology of As retention with calcium- based materials and the research progress of As pollution control in coal combustion are discussed further.
出处
《四川环境》
2006年第3期86-89,共4页
Sichuan Environment
基金
陕西省自然科学基金项目(2003D04)资助
关键词
煤
砷
赋存状态
迁移转化
固砷技术
Coal
As
existence mode
transition and transformation
As retention
