湿法制备Cu基Mn-Ce改性甲醇重整制氢催化剂及其催化性能研究  

Wet Preparation of Cu-based Mn-Ce Modified Methanol Reforming Hydrogen Production Catalyst and its Catalytic Performance

作　　者：蓝灵江 李宽 LAN Lingjiang;LI Kuan(Guangxi Guosheng Rare Earth New Materials Co.Ltd.,Chongzuo 532200,China)

机构地区：[1]广西国盛稀土新材料有限公司,广西崇左532200

出　　处：《化工技术与开发》2024年第4期14-17,60,共5页Technology & Development of Chemical Industry

基　　金：崇左市中央引导地方专项项目(崇科2023ZY00503);崇左市科技计划项目(崇科20210720)。

摘　　要：为了提升Cu基催化剂的高温稳定性和使用寿命,并研究过渡金属Mn及轻稀土金属Ce对Cu基甲醇重整催化剂的影响,本文采用新型湿法制备了Cu基Mn-Ce改性催化剂,并在气-固相固定床催化反应装置上评价了其甲醇重整制氢的性能。甲醇转化实验结果显示,Cu基Mn-Ce改性催化剂的甲醇转化率达到98.77%,产出的(H2+CO)含量达到92.5%。高温碳化性能对比实验结果表明,相比未改性的催化剂,Mn-Ce改性催化剂的高温稳定性更强,使用寿命更长。高温碳化后,205℃下的甲醇转化率均在40%以上,未改性催化剂的转化率仅为20%左右。催化剂性能评价实验结果表明,催化反应温度与其制氢性能呈正相关,高温下催化剂有更优异的制氢表现。Mn、Ce的加入可以有效提高Cu基催化剂甲醇重整制氢的性能。In order to improve the high temperature stability and service life of Cu based catalysts,and study the effects of transition metal Mn and light rare earth metal Ce on Cu-based methanol reforming catalysts,a new type of Cu-based Mn-Ce modified catalyst was prepared by wet method,and its performance for methanol reforming to hydrogen was evaluated in a gas-solid fixed bed catalytic reactor.The methanol conversion experiment results showed that the methanol conversion rate of Cu-based Mn-Ce modified catalyst was 98.77%,and the content of H2+CO was 92.5%.The experimental results of high temperature carbonization performance showed that the Mn-Ce modified catalyst had stronger high temperature stability and longer service life than the unmodified catalyst.After high temperature carbonization,the methanol conversion was more than 40%at 205℃,while the conversion of the unmodified catalyst was only about 20%.The experimental results of catalyst performance evaluation showed that the catalytic reaction temperature was positively correlated with its hydrogen production performance,and it had better hydrogen production performance at high temperature.Therefore,the addition of Mn and Ce could effectively improve the performance of Cu based catalyst for methanol reforming to hydrogen.

关 键 词：轻稀土 湿法 Mn-Ce改性 Cu基催化剂 甲醇重整制氢 

分 类 号：TQ426.8[化学工程]