多孔質体内部における往復流動超断熱燃焼によるメタンの直接改質 : 第1報, 理論解析

概要

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On the basis of reciprocating-flow super adiabatic combustion in porous media, autothermic reforming in a porous catalyst has been investigated through numerical calculation. In the system, a mixture of methane, steam and air is introduced into the porous catalyst, where the flow direction reverses regularly. By the reciprocating flow system, the product gas enthalpy is effectively regenerated into an enthalpy increase in the mixture through the porous medium, which provides heat storage. The flammability limit is considerably extended to the fuel-rich side. That is, a part of methane supplied is consumed for combustion reaction, while the other part is converted into hydrogen through endothermic reaction. The results have shown that the methane conversion reaches 80-90% and more than 85% of the combustion reaction heat is utilized for the reforming reaction of the production of hydrogen.
一般社団法人日本機械学会の論文
1999-02-25