Ni、Zn改性Cu/水泥催化剂及其甲醇高温裂解性能  

PERFORMANCE OF METHANOL DECOMPOSITION AT HIGH TEMPERATURE ON Cu/CEMENT CATALYST MODIFIED BY NICKEL AND ZINC

作　　者：邱诗铭[1] 庆绍军[2] 侯晓宁[2] 秦发芥 高志贤[2] Qiu Shiming;Qing Shaojun;Hou Xiaoning;Qin Fajie;Gao Zhixian(Guangxi Normal University for Nationalities, Chongzuo,Guangxi 532200;Institute of Coal Chemistry, Chinese Academy of Sciences)

机构地区：[1]广西民族师范学院,崇左532200 [2]中国科学院山西煤炭化学研究所

出　　处：《石油炼制与化工》2018年第1期42-47,共6页Petroleum Processing and Petrochemicals

基　　金：广西高校中青年教师基础能力提升项目(2017KY0842);广西高校"应用化学"优势特色重点学科重点项目(ZDXK-B2012001)

摘　　要：以碱式碳酸镍、碱式碳酸锌、碱式碳酸铜和水泥为原料制备水泥负载的Cu-Ni,Cu-Zn,Cu-Ni-Zn催化剂,考察了合成催化剂的甲醇裂解反应性能。结果表明:在常压、质量空速为3.39h^(-1)、温度为380~420℃的条件下,Cu-Ni/水泥催化剂作用下的甲醇转化率均在96%以上;Cu-Zn/水泥催化剂作用下的甲醇转化率较低,但对H_2和CO选择性较高;采用Cu-Ni-Zn/水泥催化剂时,经1 600h运转,甲醇转化率和产物分布变化不大,甲醇转化率基本维持在81%以上,(H_2+CO)摩尔分数大于98%,说明Cu-Ni-Zn/水泥催化剂具有良好的高温稳定性。Using the basic nickel carbonate,basic zinc carbonate,basic copper carbonate and cement as materials,the Cu Ni,Cu Zn and Cu Ni Zn cement catalysts were prepared,and their catalytic performance for methanol decomposition was studied. The evaluation results showed that the conversion of methanol over Cu Ni catalyst exceeds96%at380-420℃,WHSV of339h-1and atmospheric pressure. The Cu Zn catalyst shows lower catalytic activity,but higher selectivity for H2and CO. After the Cu Ni Zn cement catalyst runs for1600h,little changes are observed in the conversion of methanol and the distribution of product,the conversion of methanol is basically above81%,and the total molar fraction of(H2+CO)is more than98%,indicating its good high temperature stability.

关 键 词：甲醇 裂解反应 水泥催化剂 富氢气体 

分 类 号：TQ426[化学工程]