本文提出一种利用150~300℃中低温太阳能驱动的甲醇-水重整反应制氢的新方法,该方法操作温度远低于其他太阳能热化学制氢方式.在5kW抛物槽式太阳能集热器.吸收/反应器上对制氢关键过程进行了实验研究.实验结果表明:甲醇转化率可达90%以上,产物氢气浓度为66%~74%;1mol甲醇制氢量可达2.90mol,接近理想状态3mol;基于能量品位的概念,深入分析了这一过程的能量转换机理;并对制氢成本进行了初步分析.本文的研究成果为高效利用中低温太阳热能与低能耗、低成本制氢提供一条新途径.
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