工艺条件对甲醇合成催化剂性能的影响  

Influence of technological condition on performance of methanol synthesis catalysts

作　　者：蔡洪城 周菊发 孙晨 张可羡 黄晨 杜勇 张勇 王治祥 高平 惠武卫 蒋莉萍 姬存民 王巍然 赵安民 Cai Hongcheng;Zhou Jufa;Sun Chen;Zhang Kexian;Huang Chen;Du Yong;Zhang Yong;Wang Zhixiang;Gao Ping;Hui Wuwei;Jiang Liping;Ji Cunming;Wang Weiran;Zhao Anmin(National Engineering Research Center for C1 Chemistry,State Key Laboratory of Industrial Vent Gas Reuse,Southwest Institude of Chemical Co.,Ltd.,Chengdu 610225,Sichuan,China)

机构地区：[1]国家碳一化学工程技术研究中心,工业排放气综合利用国家重点实验室,西南化工研究设计院有限公司,四川成都610225

出　　处：《工业催化》2022年第7期49-55,共7页Industrial Catalysis

基　　金：四川省重点研发项目(大型化甲醇合成催化剂国产化2019YFG0531)。

摘　　要：考察了三种甲醇合成催化剂在不同工艺条件下的催化性能,并采用XRD、TPR、TG-DTG和N_(2)低温吸附-脱附对催化剂进行了表征分析。结果表明,cat-1的铜锌协同作用强,氧化铜晶粒小,分散度高,具有更好的低温活性和更佳的热稳定性,适用的空速范围更宽。cat-1最佳反应条件为温度240℃、压力8 MPa和空速10000 h^(-1),在此条件下甲醇时空收率达2.02 g·(h·mL)^(-1),老化后甲醇时空收率达1.74 g·(h·mL)^(-1)。The catalytic performance of three methanol synthesis catalysts was investigated under different technological conditions in this paper,and the catalysts were characterized by XRD,TPR,TG-DTG and N_(2) adsorption-desorption at low temperature.The experimental results show that cat-1 with stronger synergistic effect of CuO and ZnO,smaller grain size of CuO,higher dispersion has the best catalytic activity and thermal stability,as well as a wider range of airspeeds.The optimum reaction conditions of cat-1 in this experiment were temperature 240℃,pressure 8 MPa and GHSV 10000 h^(-1),under which the methanol spatial and temporal yield was 2.02 g·(h·mL)^(-1) and 1.74 g·(h·mL)^(-1) after aging.

关 键 词：甲醇催化剂 工艺条件 甲醇收率 

分 类 号：TQ426.94[化学工程] TQ223.121