摘要
汞污染排放控制技术是目前燃煤电站污染物控制的研究热点,以活性碳为代表的吸附剂喷射吸附方法是目前最有前途的主动式汞排放控制技术.文中建立了实验室规模的固态吸附剂对汞吸附效能的测定系统,该系统包括特定浓度汞源气体发生器、固定床反应器、原子荧光光谱气体在线连续汞分析仪和相关的吸附剂处理、制备装置.对8种不同的吸附剂材料在反应器进出口的汞浓度变化进行了实时测量,从而获得了吸附剂的汞穿透时间和总吸附能力与吸附剂种类、表面性态、反应温度等条件的关系.
The mercury emission control is a hot topic of the pollution control technology in power plant presently. The injection of sorhents such as powdered activated carbon is a promising approach to controling emission of mercury. A laboratory-scale system to measure the adsorption capacity of the solid sorbents was set up and the system consisted of mercury gas generator, fixed-bed reactor, and AFS online mercury monitor. The break-through testing was carried out on eight types of sorbents, and the relations between adsorption capacity and surface characteristics of sorbents, reaction temperature were obtained through monitoring the mercury concentration across the reactor.
出处
《燃烧科学与技术》
EI
CAS
CSCD
北大核心
2006年第6期486-490,共5页
Journal of Combustion Science and Technology
基金
国家重点基础研究发展规划(973)资助项目(2006cb2003)
国家人事部留学回国人员科技活动资助项目(2005112SB9B551)
关键词
汞
吸附剂
吸附能力
穿透时间
mercury
sorbents
adsorption capability
break-through
