CAJ | 학술논문

采用壳多糖螯合、浸渍法制备出Ni/Al2O3催化剂.并用BET、XRD、TG等方法对催化剂的性能、结构进行表征.通过在常压固定床流动体系中进行乙醇水蒸气重整制氢反应,讨论和评价了催化剂的性能.结果表明,10% Ni/ Al2O3催化剂对乙醇水蒸气重整制氢表现出较好的活性.在反应温度高于500℃、水醇比为3:1时,乙醇转化率100%,H2选择性在68%以上,增大水醇比可使H2选择性适度提高.
채용각다당오합、침지법제비출Ni/Al2O3최화제.병용BET、XRD、TG등방법대최화제적성능、결구진행표정.통과재상압고정상류동체계중진행을순수증기중정제경반응,토론화평개료최화제적성능.결과표명,10% Ni/ Al2O3최화제대을순수증기중정제경표현출교호적활성.재반응온도고우500℃、수순비위3:1시,을순전화솔100%,H2선택성재68%이상,증대수순비가사H2선택성괄도제고.
Hydrogen production from ethanol steam reforming over Ni/ Al2O3 catalyst prepared from chelated with chitsan and impregnation was investigated. The catalyst was characterized by means of BET, XRD and TG. The catalytic properties of the catalyst were tested in a fixed-bed reactor fitted. Results showed that 10%Ni/Al2O3 catalyst exhibits high activity for the ethanol steam reforming when temperature was higher than 500 and the mole proportion℃of water and EtOH was 3, conversion of ethanol was 100%and selectivity of hydrogen was higher than 68%. The selectivity of hydrogen enhanced as increasing the mole proportion of water and EtOH.