高温固硫物相硫铝酸钙的生成机理研究  

Study on Formation Mechanism of High Temperature Phase of Sulphoaluminate Calcium for Desulfuration

作　　者：赵改菊[1] 谢峻林[2] 高攀[1] 路春美[1] 

机构地区：[1]山东大学能源与动力学院,山东济南250061 [2]武汉理工大学材料学院,湖北武汉430070

出　　处：《锅炉技术》2008年第1期75-78,共4页Boiler Technology

基　　金：山东省自然科学基金资助项目(Y2003F07)

摘　　要：利用XRD、SEM和KZDL-4M型快速智能测硫仪对硫铝酸钙的形成过程进行了研究，深入细致地探讨了硫铝酸钙的生成与分解反应机理。研究表明，在本实验条件下，在1150℃～1450℃温度范围内都能生成硫铝酸钙，同时伴存12CaO·7A;2O3，温度高于1350℃时，硫铝酸钙发生分解，生成3CaO·Al2O3。Sulphoaluminate calcium is not only a very stable desulfuration product at high temperature （lower than 1 400 ℃）, but also primary material of a new special type of cement. It is of the guiding significance to study its formation mechanism for improving Desulfuration. In this article, by XRD, SEM, the formulation process of sulphoaluminate calcium has been studied. The results indicate, under this experimental condition, sulphoaluminate calcium can form at the temperature which range from 1 150 ℃ to 1 450 ℃, 12CaO·Al2O3 produced simultaneously. When temperature is lower than 1 350 ℃, sulphoaluminate calcium＇s crystal structure is stble. But at temperature higher than 1 350 ℃ ,sulphoaluminate calcium is decomposed and decomposed product is 3CaO·Al2O3.

关 键 词：固硫物相 硫铝酸钙 生成机理 

分 类 号：X511[环境科学与工程—环境工程]