铈铝柱撑蒙脱土的制备及其负载钴催化剂的费托反应性能  

Preparation and Catalytic Performance of Co/CeAl-Pillared Montmorillonite Catalyst for F-T Synthesis

作　　者：董慧[1] 曾尚红[1] 苏海全[1] 杜永[1] 张玉龙 胡瑞生[1] 

机构地区：[1]内蒙古大学化学化工学院,内蒙古自治区煤炭化学重点实验室,内蒙古呼和浩特010021 [2]匹茨堡大学化学和石油工程系,美国匹茨堡宾夕法尼亚15261

出　　处：《中国稀土学报》2009年第1期14-18,共5页Journal of the Chinese Society of Rare Earths

基　　金：教育部新世纪优秀人才支持计划项目(NCET-04-0261);内蒙古自然科学基金重大项目(200408020201)资助

摘　　要：以钠化改型后的内蒙古兴和县蒙脱土为原料,按照不同的Ce/A l摩尔比合成柱化液,制备铈铝柱撑蒙脱土。使用XRD,BET,TGA-DTA,ICP和FTIR等方法对柱撑后的蒙脱土进行了表征,结果表明,所制备的铈铝柱撑蒙脱土具有高热稳定性,较大的层间距和高比表面积。以铈铝柱撑蒙脱土为载体,使用浸渍法制备了负载钴的柱撑蒙脱土催化剂,用于费托反应性能评价。实验结果表明,交联柱中Ce的引入改变了柱撑蒙托土负载的钴催化剂的性质,提高了催化活性,催化剂具有优良的费托合成性能。The CeAl-pillared montmorillonite （CeAl- PILM） was synthesized using Na-modified montmorillonite prepared from Inner Mongolia Xinghe Bentonite and pillaring reagent with different Ce/Al molar ratio. It was characterized via XRD, BET, TGA-DTA, ICP and FTIR techniques. The results showed that the CeAl-pillared montmorillonite possessed high thermal stability, wide layer space and high BET surface area.The cobalt-based catalysts supported on CeAl-PILM were prepared by impregnation and could be applied for F-T synthesis reaction. The experiment showed that the addition of cerium in the pillar changed the property of the cobalt catalyst supported on Al-PILM and promoted its catalytic activity, therefore the Co/ G-CeAl-PILM-0.2 catalyst performance. presented a good catalytic

关 键 词：铈铝柱撑蒙脱土 热稳定性 费托合成 C5+选择性 稀土 

分 类 号：O643[理学—物理化学]