Abstract

Demand in clean alternative energy source together with fuel cells developments has attracted researchers towards utilization of hydrogen (H₂). Common production of hydrogen from fossil fuels requires further pretreatment prior to the application, which makes separation and purification technology a very crucial component. Membrane reactors for water-gas shift reaction which was used for H₂ generation by conversion of carbon monoxide revealed a good potential in shifting the reaction equilibrium. Two types of inorganic membranes widely studied for H₂ separation and purification are dense phase metal and metal alloys and porous ceramic membranes. Among these two, microporous-type membrane was found to be more advantageous at harsh temperature during water-gas shift reaction. Sol-gel method employed for synthesised of porous ceramic membranes produced membranes with high stability and durability at high temperature and at tough hydrothermal environments. This work presents the critical issues regarding the membranes based on technical and economical perspective. Discussions are made on the significance of membrane technology advancement in order to strive for a clean environment with zero power technologies.

中文翻译：

---

碳分子筛膜用于制氢和提纯的综述

摘要

对清洁替代能源的需求以及燃料电池的发展吸引了研究人员朝着利用氢（H ₂）的方向发展。由化石燃料共同生产氢需要在应用之前进行进一步的预处理，这使得分离和纯化技术成为非常关键的组成部分。通过一氧化碳的转化而产生H _2的用于水煤气变换反应的膜反应器显示出在改变反应平衡方面的良好潜力。广泛研究H _2的两种无机膜分离和纯化是密相金属和金属合金以及多孔陶瓷膜。在这两种之中，发现微孔型膜在水煤气变换反应期间的苛刻温度下更有利。用于合成多孔陶瓷膜的溶胶-凝胶法生产的膜在高温和恶劣的水热环境下具有高稳定性和耐久性。这项工作基于技术和经济角度提出了有关膜的关键问题。讨论了膜技术发展的重要性，以期以零功率技术争取一个清洁的环境。