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.
出处
《环境污染与防治》
CAS
CSCD
北大核心
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)
关键词
梭式窑
NOx
氧化气氛
还原气氛
Shuttle kiln NOx Oxidative atmosphere Reductive atmosphere
