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

作　　者：乔韦军 郝敏彤 王波 张煜琪 李红平 刘通 Qiao Weijun;Hao Mintong;Wang bo;Zhang Yuqi;Li Hongping;Liu Tong(Daqing Chemical Research Center Petrochemical Research Institute,Daqing 163714,China;Lanzhou China Petroleum Lubricant Additives Corporation,Lanzhou 730000,China)

机构地区：[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

出　　处：《炼油与化工》2024年第5期32-36,共5页Refining And Chemical Industry

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、H_(2)-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℃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。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,H_(2)-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.

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 

分 类 号：TQ426[化学工程]