摘要
用热重法研究了粉末氧化锌脱除Ｈ２Ｓ的氢气氛效应。研究结果表明，在２００～３２０℃的温度范围内，氢的存在影响着脱硫进程，并在氢含量为３０％处出现正负效应的逆转。氢气氛下氧化锌脱硫的动力学行为可用改良收缩核模型来表征，给出了不同控制区的动力学参数估值。
The gas effects of hydrogen on H 2S removal by Zinc oxide (T 305 ) were studied by means of thermogravimetric method The temperature of experiment covers the range of 200￣320℃, while the concentration of H 2S is 13 1g/Nm 3 It was found that H 2 affect the reaction rate H 2 concentration below 30% would be benificial for the desulfurization, whereas H 2 more than 30% would lead to the decreace of the reaction rate The kinetic behaviors could be described by the improvedshrinking core model, and the model parameters were also estimated
出处
《燃料化学学报》
EI
CAS
CSCD
北大核心
1998年第5期440-445,共6页
Journal of Fuel Chemistry and Technology
基金
国家自然科学基金
