触媒反応モデルによるハニカム型メタノール改質器の性能予測(熱工学,内燃機関,動力など)

概要

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Experimental and numerical analysis of methanol steam reforming for fuel cell have been carried out. The reforming catalyst was supported by metal honeycomb to decrease the heat capacity. Conversion performances were improved by segmenting the catalyst into several blocks due to the enhancement of mixing of gases and heat transfer at the front edges of the segmenting catalyst. Numerical simulation model for methanol steam reforming catalyst was developed by changing chemical reactions in the model for exhaust catalyst of internal combustion engine and using a smaller mass transfer coefficient for methanol steam reforming. The calculated results for plate type methanol steam reformer which generates hydrogen of 7kW (LHV) were also in good agreement with the measurements. It was found that the pattern of heat supply to catalyst and the reformer configuration affected the steam reforming performance. It was predicted that the optimized methanol steam reformer for 50kW size fuel cell vehicle had a sufficient compactness.
社団法人日本機械学会の論文
2006-12-25