CAJ | 학술논문

应用自制的车载等离子体富氢气体制备装置,进行了二甲醚(DME)部分氧化重整制氢实验,研究了操作参数、结构参数、电极材料和电极散热特性对产物中气体组成和氢产率的影响.结果表明,常温常压下,H_2的体积分数和氢产率随占空比和放电频率的增大先增大后减小,当占空比为80%和频率为170Hz时分别达到最大;随电极直径的增大和发生腔数量的增加而增大,随正极散热能力的提高而降低;当空醚比从0.5增大到4.0时,H_2的体积分数随空醚比的增大而逐渐减小,氢产率则先增大后减小,空醚比为3.5时氢产率最大;选用铱合金正极、铜质负极以及合适的发生腔半径对产氢有利.
응용자제적차재등리자체부경기체제비장치,진행료이갑미(DME)부분양화중정제경실험,연구료조작삼수、결구삼수、전겁재료화전겁산열특성대산물중기체조성화경산솔적영향.결과표명,상온상압하,H_2적체적분수화경산솔수점공비화방전빈솔적증대선증대후감소,당점공비위80%화빈솔위170Hz시분별체도최대;수전겁직경적증대화발생강수량적증가이증대,수정겁산열능력적제고이강저;당공미비종0.5증대도4.0시,H_2적체적분수수공미비적증대이축점감소,경산솔칙선증대후감소,공미비위3.5시경산솔최대;선용의합금정겁、동질부겁이급합괄적발생강반경대산경유리.
The production of hydrogen-rich gas by plasma reforming of DME was conducted in a self-made three-cavity reformer at atmospheric pressure and ambient temperature. The effects of reformer structure parameters, electrode material, heat transfer characteristic, and operation parameters on the gas composition and hydrogen yield were investigated. The results indicated that with the increase of pulse duty ratio and arc frequency, the yield of hydrogen increases first and reaches a maximum when the pulse duty ratio and arc frequency are 80% and 170Hz, respectively. The yield of hydrogen increases with the increase of anode diameter and discharge cavity number, but decreases with the increase of anodic heat transfer characteristic. The optimal air/DME ratio is 3.5 to get the highest hydrogen yield. Hydrogen yield and hydrogen concentration in the product can be enhanced by using iridium anodes, cuprum cathodes and reasonable radius of cavities.