量有机垃圾, 也可以通过气化或热
解制氢. 这些技术在香港的成功应用还需要更深入的研究, 本文不作深入探讨.
6. 小结
本文综述了目前利用可再生资源制氢的主要技术, 介绍了其基本原理, 也涉及到
了各项技术的经济性和环境以及安全方面的问题. 对各项制氢技术进行了对比分析,
总结出利用风能发电再推动电解水, 以及利用生物质的热化学制氢具有良好的经济性,
对环境的污染较小, 技术成熟, 可以作为大规模制氢的选择. 利用光伏-电解水技术具
有诱人的发展前景, 但目前还未显示出其经济性. 而太阳能热化学制氢则处于研究阶
段, 还难以用于大规模制氢. 香港具有比较丰富的可再生资源, 利用风力发电和有机
废物制氢是可行的制氢技术, 而光伏电池还需要大量研究以进一步降低成本. 尽管还
有大量的研究和更深入的分析要做, 利用可再生资源制氢以同时解决污染和能源问题
已经为我们展开了一个良好的前景.
致谢:
本文属<可再生氢能在香港的应用研究>项目, 该课题受香港中华电力公司(CLP)及香港
特别行政区政府资助, 在此表示感谢!
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