污泥化学链燃烧过程中氮迁移转化特性研究

被引:13
作者
牛欣
肖军
机构
[1] 东南大学能源热转换及过程测控教育部重点实验室能源与环境学院
关键词
污泥; 赤铁矿; 水泥; 化学链燃烧; 氮迁移;
D O I
暂无
中图分类号
X703 [废水的处理与利用];
学科分类号
083002 ;
摘要
在单流化床反应器上探究了污泥化学链燃烧过程中氮迁移转化特性。由于赤铁矿载氧体反应活性低,采用30%水泥对其改性。结果表明,水泥改性可提高污泥热解气化反应速率以及赤铁矿还原反应速率,进而提高污泥碳转化率,但是NO生成率也增加。随着反应温度的升高,污泥的碳转化率和NO生成率均增加。另外,随着水蒸气浓度的增加,碳转化率增加,同时可降低NO生成。在污泥化学链燃烧过程中,NO生成率为0.286%-0.768%,低于污泥空气焚烧氮氧化物排放量。
引用
收藏
页码:505 / 512
页数:8
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