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

用于CH4/CO2重整反应Ni/ZrO2-Al2O3催化剂的结构和抗积炭性能
引用本文:刘欣梅,高晓,李翔.用于CH4/CO2重整反应Ni/ZrO2-Al2O3催化剂的结构和抗积炭性能[J].催化学报,2011,32(1):149-154.
作者姓名:刘欣梅  高晓  李翔
作者单位:中国石油大学重质油国家重点实验室, 中国石油天然气集团公司催化重点实验室, 山东青岛 266555
摘    要:在表面活性剂P123作用下,通过无机盐的双水解反应制备了介孔ZrO2-Al2O3复合氧化物.研究发现,所得样品具有较大的比表面积和可调变的孔结构.ZrO2可嵌入到Al2O3骨架中形成固溶体,因而热稳定性增加;与Al2O3相比,适量ZrO2加入使ZrO2-Al2O3的酸密度和酸强度增加.在CH4/CO2干气重整反应中,N...

关 键 词:  氧化锆  氧化铝  复合氧化物  双水解  介孔  酸性  抗积炭性能  干气重整反应
收稿时间:2010-07-28

Structure and Anti-carbon Capacity of ZrO_2-Al_2O_3 Mixed Oxides in Ni-Based Catalyst for CH_4/CO_2 Reforming
LIU Xinmei,GAO Xiao,LI Xiang.Structure and Anti-carbon Capacity of ZrO_2-Al_2O_3 Mixed Oxides in Ni-Based Catalyst for CH_4/CO_2 Reforming[J].Chinese Journal of Catalysis,2011,32(1):149-154.
Authors:LIU Xinmei  GAO Xiao  LI Xiang
Institution:State Key Laboratory of Heavy Oil Processing, Key Laboratory of Catalysis of CNPC, China University of Petroleum, Qingdao 266555, Shandong, China
Abstract:In the presence of P123 surfactant, mesoporous ZrO2-Al2O3 mixed oxides were prepared using inorganic salts as precursors by a bihydrolysis route. The results showed that the mixed oxides bear high surface area and controlling pore structure. Some solid solution can be formed througth the incorporation of zirconium to the alumina framework. The introduction of a proper amount of zirconia to alumina increased the acid sites number and acidic strength of the mixed oxides as compared with pure alumina.  Methane reforming with CO2 was used to detect the activity and stability of the Ni-based catalysts. The Ni/ZrO2-Al2O3 catalysts exhibit higher anti-carbon capacity than Ni/Al2O3, but possess slightly low activity. The improvement of anti-carbon capacity is ascribed to the dispersion of the active component and support effect induced by deficiencies and fine crystal size of the support.
Keywords:nickel  zirconia  alumina  mixed oxide  double hydrolysis  mesopore  acidic property  anti-carbon capacity  methane reforming
本文献已被 CNKI 万方数据 等数据库收录!
点击此处可从《催化学报》浏览原始摘要信息
点击此处可从《催化学报》下载免费的PDF全文
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