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author:

钟丁通 (钟丁通.) [1] | 陈书芳 (陈书芳.) [2] | 刘娟 (刘娟.) [3] | 叶长燊 (叶长燊.) [4] | 林诚 (林诚.) [5]

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Abstract:

以钠基膨润土为原料,ZrOCl2.8H2O为柱化剂的锆源,采用水热合成法制备了锆基柱撑膨润土(Zr-PILM),结合XRD对产物进行表征,探讨了锆/土比和焙烧温度对甲醇制备低碳烯烃(Methane-to-Olefin,简称MTO)的影响。结果表明:Zr-PILM的d001值随着锆/土比的增加而增大,锆/土比从15mmol/g增加为30mmol/g时,d001值仅增大了0.03nm,说明膨润土可交换容积已基本达到饱和;经过300℃焙烧其d001可达2.16nm;对比同样经过500℃焙烧的柱撑前后膨润土,Zr-PILM的d001值由柱撑前的0.96nm变为2.01nm,说明其保留了层间结构,热稳定性提高;Zr-PILM催化MTO反应可使甲醇转化率达到95.01%,低碳烯烃的选择性达到68.24%。

Keyword:

MTO 催化 制备 水热法 锆基柱撑膨润土

Community:

  • [ 1 ] 福州大学化学工程与技术研究所,福建福州350108

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Source :

化学工程与装备

ISSN: 1003-0735

Year: 2011

Issue: 5

Page: 10-12

Cited Count:

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SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count: -1

30 Days PV: 1

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