摘要
以甲基环己烷 甲苯 氢 (MTH系统 )与环己烷 苯 氢 (CBH系统 )为例介绍了有机物可逆储放氢技术的特点与研究现状。研究表明 ,该技术作为大规模、长期性的氢能储存和运输手段 ,作为随车脱氢为汽车提供氢燃料或为氢燃料电池提供氢源 ,以及用于化学热泵等在技术上都是可行的 ,但问题的关键是如何提高过程的释氢效率 ,特别是低温下的释氢效率。开发低温高效脱氢催化剂和采用膜催化反应分离技术是提高释氢过程效率的可行方法。水电解—有机氢载体电化学加氢—氢载体膜催化脱氢技术路线有望改善系统储氢效能 ,实现氢的高能量密度储存。
Characteristics and present status of reversible hydrogen storage technology based on MTH system(Methylcyclohexane Toluene Hydrogen)and CBH system(Cyclohexane Benzene Hydrogen) are introduced in this paper. The results show the hydrogen storage technology is feasible for a great deal of hydrogen energy storage or the seasonal storage of electricity or vehicle hydrogen fuel produced on board. But, up to now, the key problem is how to improve the hydrogen storage system efficiency, especially dehydrogenation efficiency of hydrogen carriers in low temperature(below 300℃). The authors consider that water electrolysis, electrochemical hydrogenation of liquid organic hydrides, dehydrogenation of hydrogen carrier combined with catalytic membrane reactor, which will greatly improve dehydrogenation efficiency markedly increase the hydrogen storage capacity of the system, may be a research tendency of the hydrogen storage technology. Low temperature dehydrogenation catalyst and membrane reactor are key to realize the hydrogen storage technology. Nanometer catalysts and carbon membrane reactors are being investigated by the authors in order to improve the dehydrogenation.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2002年第4期528-532,共5页
Acta Energiae Solaris Sinica
基金
国家"973"重大基础科研项目子课题 (G2 0 0 0 0 2 64 0 7)
关键词
有机液态氢化物
可逆储放氢技术
现状
远景
氢能储存
膜反应器
hydrogen energy storage
liquid organic hydrides
organic hydrogen carrier
electrochemical hydrogenation
dehydrogenation catalyst
membrane reactor
