摘要
将膜分离技术与微流体技术的优势相结合,开发设计了新型膜微反应器,该设备比表面积大且扩散距离短,可以强化渗透汽化过程。以正丁醇-水体系的分离效果为实验模型,分析了膜微反应器的渗透汽化性能。在不同料液温度、料液水含量及料液流速条件下,对膜微反应器中正丁醇-水体系的分离性能进行了系统的研究。当料液温度升高时,渗透通量增大。当进口料液水含量升高时,渗透通量明显增大。当流速升高时,渗透通量增大且趋势逐渐变缓。在实验研究的基础上,建立了渗透汽化传质模型,模型计算值与实验值吻合良好。
A new type of membrane microreactor was designed. The large specific surface area and short diffusion distance of the membrane microreaetor can be used to strengthen the pervaporation process. The system of n-butyl alcohol-water was chosen as the experimental probe to investigate the performance ofpervaporation process in the membrane microreactor. The separating performance of n-butyl alcohol-water system was systematically analyzed under different condition of temperature, content and flow velocity of feed. The permeation flux increased and the water content at the outlet decreased with t he increase of temperature. The permeation flux and the water content at the outlet both increased with the increase of the water concentration at the inlet. As the flow velocity of feed increased, the permeation flux and the water content at the outlet both increased and the trend of increase of permeate flux became slow gradually.
出处
《水处理技术》
CAS
CSCD
北大核心
2016年第7期49-53,61,共6页
Technology of Water Treatment
