甲醇水蒸气重整制氢CuAl2O4催化材料的研究

Study on CuAl2O4 catalytic material for methanol steam reforming

以γ-Al 2O 3为原料采用原位合成法制备CuAl2O4催化材料,通过XRF、XRD、BET和H 2-TPR等手段对催化材料进行表征,考察铜铝物质的量比对CuAl2O4催化材料结构、性质及其催化甲醇水蒸气重整制氢性能的影响。结果表明,不同铜铝物质的量比主要影响了铜物种的还原性能,从而影响了其催化甲醇水蒸气重整制氢的性能。当铜铝物质的量比为1∶2时,CuAl2O4催化材料的催化性能较好,在反应温度为260℃,水醇物质的量比为1.2,甲醇气体空速为800 h^-1时,甲醇转化率为100%,产氢速率为895 mL/(kg·s)。

The CuAl2O4 catalytic material was in-situ synthesized usingγ-Al 2O 3 as raw material.The catalytic material was characterized by XRF,XRD,BET and H 2-TPR.The effect of the copper-aluminum molar ratios on the structure and properties of CuAl2O4 spinel catalytic material and its performance in hydrogen production from methanol steam reforming were investigated.The results show that the copper-aluminum molar ratios affects reduction performance of copper species,which affects its performance in catalyzing methanol steam reforming to produce hydrogen.When the copper-aluminum molar ratios is 1∶2,CuAl2O4 catalytic material has better catalytic performance.When the reaction temperature is 260℃,with a water-methanol molar ratio of 1.2 and methanol gas hourly space velocity of 800 h^-1,the methanol conversion reaches 100%,the hydrogen production rate is 895 mL/(kg·s).