氢选择性高分子膜分离技术的现状及发展趋势
首发时间:2008-11-27
摘要:氢是未来氢燃料电池应用所不可或缺的基础物质,同时也是化学工业的重要原料。为实现未来环境的可持续发展而正悄然崛起的氢能源(经济)推动了对高效、低耗的分离系统的需求。目前在工业上生产H2的最常见技术获得的下游产品中所含的主要杂质是CO2,必须除去。而对于H2和CO2的分离而言,相比传统的分离方法(如变压吸附、深冷分离),膜技术以其低能耗、操作简单和轻便小巧而更具优势。用于H2分离的高分子膜可以分为氢选择性(H2-selective)膜和二氧化碳选择性(CO2-selective)膜。而本文将展现应用于氢气纯化的氢选择性高分子膜技术的现状及其优缺点,并对未来的发展进行了展望。
For information in English, please click here
Advances in H2 Selective Polymeric Membrane
Abstract:Hydrogen is indispensable for the future application of H2-based fuel cell and is an essential feedstock for the chemical industries. The emerging hydrogen-based economy for a future sustainable environment pushes the need for separation processes with better efficiency and lower costs. Currently, during industrial H2 production, the downstream product contains CO2 as the main contaminant which must be removed. For H2 and CO2 separation, membrane technology is more advantageous than conventional methods (e.g. pressure swing adsorption and cryogenic distillation) in terms of its lower power requirements and costs, simplicity in operation, compactness and portability. Polymeric membranes for hydrogen separation can be classified as H2-selective or CO2-selective membranes. In this review, the current state of the art for H2-selective polymeric membranes that are applicable to hydrogen purification, together with their respective pros and cons are presented. The future research directions in this field are predicted.
Keywords: Polymer H2-selecitve Membrane Separation
论文图表:
引用
No.2613810693812277****
同行评议
共计0人参与
勘误表
氢选择性高分子膜分离技术的现状及发展趋势
评论
全部评论0/1000