陶瓷烧成中气氛及温度对NO_X生成的影响  

Effects of atmosphere and temperature during cermic sintering on NO_X formation

作　　者：刘平安[1] 曾令可[1] 程小苏[1] 王慧[1] 税安泽[1] 方海鑫[1] 

机构地区：[1]华南理工大学材料学院,广东广州510640

出　　处：《环境污染与防治》2006年第6期408-410,共3页Environmental Pollution & Control

基　　金：国家自然科学基金资助项目(No.50276017);广东省自然科学基金资助项目(No.000475)

摘　　要：通过对不同烧成气氛NOX的生成进行测试分析,得出还原气氛可抑制NOX的生成。但在没有催化剂存在的情况下,CO对NO的还原效果不显著;其次,在烧成温度较低(1200℃以下)、高温阶段温度场均匀性较好且使用洁净燃料(即含氮量较小的燃料)的情况下,快速升温将导致NOX生成的增加,此时快速型NOX起主要作用;第三,烧嘴的合理布置、改善窑体结构和加强高温阶段窑内温度场的均匀性可以减少NOX的生成。NOx formation during ceramics sintering under a variety of operating conditions in two shuttle kilns were investigated. NOx formation was constrained in a reductive atmosphere; however, CO could not effectively reduce NO without the a catalyst. A rapid rise in temperature promoted NOx formation. An uniform temperature field achieved by proper burner placement with improved kiln structure reduced NOx formation in the kilns.

关 键 词：梭式窑 NOx 氧化气氛 还原气氛 

分 类 号：TQ174.6[化学工程—陶瓷工业]