铝铈助剂对镍基甲烷化催化剂性能的影响  

EFFECT OF ALUMINUM AND CERIUM ADDITION ON METHANATION BY NICKEL BASED CATALYST

作　　者：樊劭[1] 王彩红[1] 袁振[1] 王东飞 杨双凤[1] 刘博[1] 许德平[1] 

机构地区：[1]中国矿业大学化学与环境工程学院,北京硕士生100083 [2]潞安矿业集团有限公司技术中心,山西长治高级工程师046024

出　　处：《煤炭转化》2010年第2期68-71,共4页Coal Conversion

基　　金：国家高技术研究发展计划(863)项目(2007AA05Z323)

摘　　要：用沉淀法制备了镍基甲烷化催化剂,采用X-射线衍射、氢气程序升温还原和扫描电镜等技术对合成催化剂进行了表征.结果表明,铝助剂对形成微球状催化剂有较大的促进作用,铝铈助剂对镍基催化剂的还原有明显的促进作用,铈助剂大幅提高了催化剂的抗积碳能力.复合催化剂的催化活性明显高于单一催化剂.A series of catalysts for methanation on silica-supported nickel was prepared by precipitation and the catalysts were analyzed by XRD, TPR and SEM. The results showed that aluminum addition was helpful to form microballoon catalyst and adding aluminum and cerium could accelerate reduction of catalyst. Cerium addition could obviously improve the carbon distribution of catalyst. The reaction activity of complex catalyst was higher than those of monotypic catalyst.

关 键 词：甲烷化 镍基催化剂 XRD TPR SEM 

分 类 号：TQ426[化学工程]