首页 | 本学科首页   官方微博 | 高级检索  
     检索      

La与Cu/ZrO2作用形式对合成醇催化剂性能的影响
引用本文:吴贵升,任杰.La与Cu/ZrO2作用形式对合成醇催化剂性能的影响[J].燃料化学学报,1999,27(5):472-475.
作者姓名:吴贵升  任杰
作者单位:中国科学院山西煤炭化学研究所煤转化国家重点实验室!太原030001
摘    要:研究了镧与Cu/ZrO2 的相互作用对CO加氢反应性能的影响。结果表明,镧能显著提高催化剂的活性,降低反应温度。镧的添加方式对催化剂活性和选择性的影响规律为: 共沉淀> 浸渍>机械混合。XRD、TPR和UV- VIS等表征结果表明,稀土镧有助于提高铜组分的分散度,且添加方式直接影响铜的分散状态

关 键 词:氧化镧  Cu/ZrO_2催化剂  CO加氢  合成甲醇

EFFECT OFLa MODIFIED Cu/ZrO_2 CATALYSTS ONALCOHOLSYNTHESIS
Wu Guisheng,Ren Jie,Sun Yuhan.EFFECT OFLa MODIFIED Cu/ZrO_2 CATALYSTS ONALCOHOLSYNTHESIS[J].Journal of Fuel Chemistry and Technology,1999,27(5):472-475.
Authors:Wu Guisheng  Ren Jie  Sun Yuhan
Institution:State Key Laboratory of Coal Conversion Institute of Coal Chemistry China Academic ofScience Taiyuan
Abstract:The performance of Cu/ZrO2 and Cu/La2O3/ZrO2for methanolsynthesis was investigatedinthe present work- The structuresofcatalysts were characterized by TPR,XRD and UV- VIS- The differentintroduction oflanthana in Cu/ZrO2improved the dispersion of CuOto different degree,in which coprecipitation oflanthana was optimum for dispersion of CuO- COhydrogenation resultsshowedthere existed correspondingrelation between the activ ity of catalysts and CuO dispersion- Cu/ZrO2 promoted by lanthana in co - precipitation showed the highestactivity-
Keywords:lanthana  Cu/ZrO_2  COhydrogenation
本文献已被 CNKI 维普 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号