P215 ZnO触媒を用いた高温高圧水中における水素生成反応

概要

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Hydrogen production from biomass in hot-compressed water was attempted at a lower temperature (300℃). It was found that ZnO was effective for production of H_2 from glucose, however, H_2 yield (=the produced amount of H_2/(the number of 2H molecule in the reactant) was only a few percent. Partial oxidation was attempted to increase the yield of H_2 via CO production because ZnO is an effective catalyst also for water-gas shift reaction. As a result, an addition of H_2O_2 to the reaction of glucose and sugarcane bagasse in hot-compressed water brought about the increase of yields of CO_2, CO, and H_2. The amount of added H_2O_2 affected the yield of all the gaseous products (CO_2, CO, and H_2): CO_2 and CO yields proportionally increased with increasing the amount of H_2O_2, whereas, H_2 yield decreased above a certain amount of H_2O_2. The fact that CO_2 yield was quite high and H_2 yield was still low indicates the increase of controllability of partial oxidation would be demanded.
一般社団法人日本エネルギー学会の論文
2006-01-17