高温高圧水中部分酸化によるグルコースからの水素製造技術(第1報) : 触媒の選定およびZnOの効果について(<特集>バイオマス)

概要

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Hydrogen formation from glucose was examined using a batch reactor in high temperature high pressure water at 300℃. Homogenous catalysts (H_2SO_4 and NaOH) were not effective for H_2 formation from glucose at this condition. Heterogeneous catalysts: Ag_2O, CuO, Cr_2O_3, Fe_2O_3, MgO, MnO_2, MoO_3, NiO, rutile TiO_2, and ZnO, were applied and then it was found that MnO_2 and ZnO effectively promoted H_2 formation. In order to enhance H_2 yield, glucose in high pressure high temperature water was partially oxidized in the presence of ZnO. As a result, 25% H_2 (glucose mole basis) was obtained. In this reaction, by-production of methane was not observed. The enhancement of H_2 yield was not observed when ZnO was located at gas phase. It suggested that a precursor of H_2 formed in the aqueous phase.
一般社団法人日本エネルギー学会の論文
2008-09-20