燃煤脱硫剂孔隙结构分形特性的研究  

Fractal Characteristics of Pore Structure of Desulfurization Sorbents Used in Coal Firing

作　　者：刘妮[1] 赵敬德[2] 

机构地区：[1]上海理工大学动力工程学院,上海200093 [2]东华大学环境科学与工程学院,上海201620

出　　处：《动力工程》2007年第5期802-804,814,共4页Power Engineering

摘　　要：脱硫剂孔结构特性对脱硫性能有着重要的影响,其煅烧后的多孔结构是具有自相似性的分形结构。选取4种钙基脱硫剂,在压汞分析实验的基础上,对脱硫剂孔结构的分形特性进行研究,提出了脱硫剂孔隙分形维数的计算方法,并探讨了煅烧温度对分形维数的影响。The desulfurization properties of desulfurization sorbents are strongly affected by the characteristics of their porous structure. Their porous structure after calcination is a fractal structure with self- similarity characteristics. Four kinds of calcium based desulfurization sorbents are chosen, their fractal characteristics studied, explored with the help of mercury porosimetry pressure tests. A method for calculating the fractal dimensions of desulfurization sorbent＇ s pores is proposed and the influence of calcination temperature on fractal dimensions discussed.

关 键 词：环境工程学 脱硫剂 孔结构 压汞分析 分形维数 

分 类 号：X701.3[环境科学与工程—环境工程]