微型平板式反应器中甲醇水蒸气重整制氢的研究  

Hydrogen production by methanol steam reforming in a miniature plate-type reactor

作　　者：穆昕[1] 潘立卫[1] 郏景省[1] 王树东[1] 

机构地区：[1]中国科学院大连化学物理研究所

出　　处：《燃料化学学报》2008年第3期338-342,共5页Journal of Fuel Chemistry and Technology

基　　金：国家重点基础研究发展规划(973计划,2004CB719506);国家自然科学基金(20476103,20590365)

摘　　要：研制了一种高效平板式微型制氢反应器,将甲醇重整和催化燃烧集于一体,吸热、放热合理耦合,实现快速启动和制氢过程自热运行;在反应器中进行甲醇水蒸气重整实验,考察了反应器腔内的温度分布,以及温度、空速和水醇比对制氢过程的影响。结果表明,当温度为270℃,空速为870h-1,水醇比为1.3时,甲醇转化率最高为94.85%,重整气组成为74.53%H2、1.76%CO、23.71%CO2;累计运行400h,重整最大产氢量接近6 000mL/h,可为便携式燃料电池提供稳定氢源。A novel miniature plate-type reactor was successfully fabricated, which combines methanol steam reforming and catalytic combustion reactions. It can be started-up fast and keeps self-sustained, i.e. without any external heating during the operating process. A number of the methanol steam reforming （MSR） tests were carried out in the reactor. The temperature distribution in the reforming and combustion chambers and the effects of temperature, space velocity and water/methanol ratio on the hydrogen production process were studied. The optimal methanol conversion of 94.85 % can be attained at the temperature of 270 ℃, the space velocity of 870 h^-1, and the water/methanol ratio of 1.3. The production gas consists of 74.53% H2 , 1.76% CO, and 23.71% CO2. The maximum hydrogen throughput is up to 6 000 mL/h, which can meet the hydrogen feed for a portable fuel cell system.

关 键 词：微型反应器 甲醇水蒸气重整 燃料电池 氢源 

分 类 号：TQ116.25[化学工程—无机化工]