摘要
为了解决燃料电池系统的稳定氢源问题,研制了一种新型的甲醇重整微槽道反应器加工工艺方法。通过电火花加工技术在合金片上加工出平行的槽道,然后通过扩散焊将十多层的合金片焊接在一起,再通过溶胶-凝胶方法将催化剂涂层负载到微槽道反应器的内壁上。微槽道反应器的整体尺寸为40 mm×40 mm×8 mm。考察了催化剂涂层的配比、反应温度、水醇比、进料速度、反应时间对甲醇重整微槽道反应器性能的影响。结果表明:当反应温度、进料速度、水醇摩尔比分别为282°C、6 cm3/h、1.3时,该微槽道反应器的氢气产率可满足11W燃料电池的需要。
To develop a reliable hydrogen supply system for fuel cells, a new manufacturing procedure was successfully explored to form a microchannel steam methanol reformer. Firstly,many microchannels were patterned on metal sheets by electric spark processing and were fabricated to make a reformer unit. Then, more than ten patterned sheets were manufactured into a single structure by diffusion bonding. At last, the reactor microchannel was coated with catalytic materials by the methods of sol-gel and impregnation. The dimensions of the microchannel reactor were about 40 mm × 40 mm × 8 mm, respectively. The effects of catalyst composition, reaction temperature, space velocity, molar ratio of methanol to water, and reaction time on the performance of the microchannel reactor were investigated. The results show that the developed microchannel reactor can generate enough hydrogen for a power output of 11 W.
出处
《华东理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2005年第6期792-796,共5页
Journal of East China University of Science and Technology
关键词
微槽道
反应器
甲醇重整
燃料电池
microchannel
reactor
reforming of methanol
fuel cell
