摘要
对火电厂粉煤灰改性后制成两种改性脱硫灰,通过试验测定了两种改性脱硫灰吸收氨气与除臭的能力。为描述吸附剂除氨率随时间的变化趋势,构建了除氨率―时序数学模型。结果表明:以10%石灰+75%粉煤灰+15%石膏并在常温消化条件下制备脱硫灰,二者吸收氨气的能力优于同类型市售吸附剂;两种脱硫灰与市售吸附剂除氨率随时间的变化趋势可分别用三次幂关系式和线性关系式进行较准确描述,模型误差较小。该除氨率―时序数学模型可用于预测脱硫灰除氨率随时间的变化趋势,并且应用于工程插值计算。
The ammonia absorption and deodorization performance of two types of modified desulfurized fly ash,which prepared with the fly ash in thermal power plant,were tested.A model of ammonia removal rate and time was set up.The experimental results suggest that the desulfurized fly ash composed with 10 % lime,75 % fly ash and 15 % gyp outperform commercial absorbents on absorbing ammonia.The trend of ammonia removal rate over time can be described by a third-power equation for these two modified desulfurized fly ash,and a linear equation for the commercial absorbent with small error.This model can be applied to well predict the change of ammonia remove rate change over time and interpolation calculation in projects.
作者
裘余丹
QIU Yudan(Hangzhou Environmental Protection Research Institute of China Coal Technology & Engineering Group,Hangzhou 311201,China)
出处
《能源环境保护》
2019年第5期28-31,共4页
Energy Environmental Protection
关键词
改性脱硫灰
吸附
氨气
时序分析
Modified desulfurized fly ash
Absorption
Ammonia
Time sequence analysis
