77 模擬COGガスの水蒸気改質の詳細化学反応速度モデリング(熱分解・コークス(3))

概要

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Detailed chemical kinetic modeling (DCKM) with a reaction mechanism consisting of thousands of elementary reactions has been successfully applied to predict combustion and pyrolysis characteristics of hydrocarbon fuels. The DCKM, however, has never been used for predicting reforming reaction of fuels like a steam reforming. In this study, experimental data of steam reforming of model gas of coke oven gas (mixture of hydrogen, steam, naphthalene, toluene, or benzene) in the tubular flow reactor (160kPa, 1073-1673K and residence time 0.5s) reported by Jess (A. Jess, Fuel, 1996) was used to validate the DCKM. The simulation using a kinetic model that consists of more than 200 chemical species and more than 2000 elementary step like reactions and a plug flow reactor model successfully reproduced the experimental results for major compounds such as conversions of the source aromatic hydrocarbons and formations of CO, CO_2, CH_4, and soot (polycyclic aromatic hydrocarbons), as well as the influence of hydrogen concentration on the product distributions.
一般社団法人日本エネルギー学会の論文
2008-10-09