廃棄物の高温水蒸気ガス化による高水素濃度ガス生成に関する基礎的研究(熱工学,内燃機関,動力など)

概要

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In this paper, the basic studies on the high temperature steam gasification system which is named as HyPR-MEET system are carried out using the Japanese cedar and pure polythylene (PE) particles as feedstocks. First, the characteristic of steam gasification is investigated. With each feedstock, the hydrogen concentration increases as the gasification temperature rises, but the increasing rate of hydrogen concentration decreases over the temperature of 1073K for Japanese cedar and 1173K for PE. The increase of the steam/carbon molar ratio also increases the hydrogen concentration. Second, the effectiveness of the Ru/Al_2O_3 catalyst for steam reforming of tar components is investigated. With use of this catalyst, tar components can be reformed at the temperature of 973K, while the temperature of 1173K is required without use of any catalysts. Furthermore, light hydrocarbon gases are also reformed with this catalyst, and the hydrogen concentration in the reformed gas can reach the value of 55vol% for Japanese cedar, and of 68 vol% for PE.
社団法人日本機械学会の論文
2007-01-25