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球磨时间对MSR 铜铝尖晶石的影响
The effect of ball milling time on Cu Al spinel methanol steam reforming for hydrogen production
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- DOI:
- 作者:
- 乔韦军1，郝敏彤1，王波2，张煜琪2，李红平2，刘通1
Qiao Weijun 1, Hao Mintong 1, Wang bo 2, Zhang Yuqi 2, Li Hongping 2, Liu Tong 1
- 作者单位:
- （1. 中国石油石油化工研究院大庆化工研究中心，黑龙江大庆163714；2. 兰州中石油润滑油添加剂有限公司，甘肃兰州730000）
(1. Daqing Chemical Research Center Petrochemical Research Institute, Daqing 163714, China; 2. Lanzhou China Petroleum Lubricant Additives Corporation, Lanzhou 730000, China)
- 关键词:
- ：球磨时间；甲醇水蒸气重整制氢；Cu-Al 尖晶石；催化性能
Ball milling time; Methanol steam reforming for hydrogen production; Cu Al spinel; Catalytic performance
- 摘要:
- 摘要：采用球磨法制备了铜铝（Cu-Al）尖晶石催化剂，通过改变球磨时间（t = 0、2、4、6 h），制备
出Cu-Al 尖晶石前驱体CAQ-t 和对应催化剂CA-t，通过XRD、BET、H2-TPR 和XPS 一系列表
征方法对催化剂及前驱体进行表征，探究球磨时间对尖晶石催化剂催化性能的影响。结果表
明，适当的球磨时间会增加Cu-Al 尖晶石及CuO的分散情况，进而影响了尖晶石相含量。当
球磨时间为4 h 时，制备的Cu-Al 尖晶石分散情况最好，尖晶石含量最高为90.76%，将其应用
在催化甲醇水蒸气重整制氢中，当反应温度为280 oC时，水醇物质的量比为2。当甲醇质量空
速为1.05 h-1时，甲醇转化率约为76%，并且能够在50 h 下保持不失活。
Abstract: The Cu-Al spinel catalyst was prepared by the ball milling method. Cu Al spinel precursor CAQ-t and corresponding
catalyst CA-t were prepared by changing the ball milling time (t=0, 2 h, 4 h, and 6 h). The catalyst and precursor were characterized
by a series of characterization methods of XRD, BET, H2-TPR andXPS analysis. The influence of phase composition and
performance of catalytic methanol steam reforming for hydrogen production. The results show that proper ball milling time will increase
the dispersion of Cu-Al spinel catalyst and CuO, which in turn affects the spinel phase content. When the ball milling time is
4 h, the prepared Cu-Al spinel catalyst has the best dispersion, with the highest spinel content of 90.76%, and it is used in the
catalytic methanol steam reforming for produce hydrogen. The reaction temperature is 280 ℃, when the ratio of hydroalcoholic
substances is 2, and the mass space velocity of methanol is 1.05 h-1, the methanol conversion rate is maintained at about 76%, and it
remains inactive for 50 h.