C208 溶融炭酸塩を利用した有機系廃棄物の熱分解残渣からの水素製造(水素の製造と利用,OS-3 バイオマス・新燃料・環境技術(4),一般講演,地球温暖化防止と動力エネルギー技術)

概要

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Steam gasification of activated carbon or solid carbon residues, derived from pyrolysis of Japanese cedar or particle board, was carried out in the presence of various molten carbonates or eutectic mixtures of them at 973K and 3.0 MPa. Hydrogen and carbon dioxide were produced mainly. Methane and carbon oxide were detected as a trace product. Yield of hydrogen increased significantly in the presence of the molten carbonates. Effects of molten carbonates for the rate of hydrogen formation were following order, Na_2CO_3/K_2CO_3/Li_2CO_3 (60/20/20) > Li_2CO_3/K_2CO_3 (50/50) > K_2CO_3 (100) > Li_2CO_3/Na2_CO_3 (50/50) >Na_2CO_3 (100) > none. These experimental results show that content of the carbonate and physical contact with solid carbon, molten carbonate, and steam is very important for hydrogen production.
社団法人日本機械学会の論文
2008-06-18