摘要
针对甲醇蒸汽的微通道重整催化反应过程,建立化学热力学-物理-数学模型,利用数值模拟分析,分别从Pd/ZnO催化剂下的单速率模型和Zn_Cr/CeO_2/ZrO_2催化剂下的双速率模型考察操作条件对甲醇水蒸气重整制氢输运规律的影响,发现微通道反应器以其高面体比促进了甲醇转化率和氢气产率的提高,且有助于反应器内温度分布均匀;对不同的操作条件下甲醇的转化效果进行分析比较,可为实际操作参数的选取提供参考。
The chemical kinetics-physical-mathematical model to simulate the methanol-steam catalytic reforming for hydrogen production in micro-channel was established.To investigate the operate conditions effect on reforming progress,the single velocity model with catalyst Pd/ZnO and double velocity model with catalyst ZnGr/CeO2/ZrO2 were studied respectively.The results showed that with the advantage of high surface-volume ratio of microreactor,the methanol conversion efficiency and hydrogen production was improved,the reactor temperature was much more consistent. The comparison research on different operate conditions could make suggestions on the appropriate operate conditions in practical.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2010年第11期1937-1940,共4页
Journal of Engineering Thermophysics
基金
国家自然科学基金项目(No.50976031
No.50776032)
关键词
微通道
甲醇重整
传热
micro-channel
methanol-steam reforming
heat transfer
