摘要
针对一种新型半干法复合喷动烟气净化工艺,提出了使用截面温度标准差判定蒸发过程的分析方法,利用双回路抽气式温度、湿度测量装置和可测量径向截面温度分布的网状测量装置对该工艺的气液主反应区段进行了蒸发特性研究。详细研究了分析方法、雾化气液比、烟气温度、烟气速度对蒸发特性的影响。研究结果表明,烟气温度对蒸发特性有显著影响,由120℃上升至180℃可使气液主反应区缩短34%;雾化气液比由0.1上升到0.3可使气液主反应区缩短23.5%以上;烟气速度对气液主反应影响较小,但较低烟气速度有利于离子吸收反应的进行。
The analysis method using the section temperature deviation to judge droplet evaporation is adopted in this paper. For the purpose of studying and analyzing evaporation characteristics, temperature of the gas-liquid main region is measured with the temperature and humidity measurement device with double gas-pumping channel and section temperature netty measurement device. The effects of analytic means, gas-liquid ratio, flue gas temperature and velocity on evaporation characteristics is studied in detail. The results indicate that flue gas temperature has a great impact on the evaporation characteristics. When flue gas temperature varies from 120℃ to 180℃, the main gas-liquid reaction region is cut by 34%. When gas-liquid ratio ascends from 0. 1 to 0.3, the main gas-liquid reaction region is cut by at least 23.5%. Changes of fuel gas velocity barely affect the main reaction region. Low velocity is advantageous to ion absorbing reaction.
出处
《现代化工》
EI
CAS
CSCD
北大核心
2008年第12期62-66,共5页
Modern Chemical Industry
基金
国家"十一五"重点科技支撑计划项目(2006BAA01B04)
国家高技术研究发展计划资助项目(2007AA05Z307)
关键词
喷雾干燥
气液反应
标准差
烟气净化
试验研究
spray drying
gas-liquid reaction
standard deviation
gas purification
experimental investigate
