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【英文篇名】 |
Modification of the acidic and textural properties of ZSM-5 zeolite by using double mineralizers in synthesis and its catalytic performance in the conversion of methanol to propene |
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【下载频次】 |
★★☆ |
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【作者】 |
张海荣;
刘红艳;
潘启亮;
刘慧君;
沈腊珍;
崔越;
刘一丁;
张涛;
蒋煜;
郭永; |
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【英文作者】 |
ZHANG Hai-rong;
LIU Hong-yan;
PAN Qi-liang;
LIU Hui-jun;
SHEN La-zhen;
CUI Yue;
LIU Yi-ding;
ZHANG Tao;
JIANG Yu;
GUO Yong;
Shanxi Datong University;
Taiyuan University of Technology;
Datong Coal Mine Group Co.;
LTD; |
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【作者单位】 |
山西大同大学;
太原理工大学;
大同煤矿集团有限责任公司; |
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【文献出处】 |
燃料化学学报
, Journal of Fuel Chemistry and Technology, 编辑部邮箱
2018年 08期
期刊荣誉：中文核心期刊要目总览 ASPT来源刊 中国期刊方阵 CJFD收录刊 |
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【中文关键词】 |
矿化剂;
ZSM-5;
甲醇转化;
丙烯;
乙烯; |
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【英文关键词】 |
mineralizer;
ZSM-5;
methanol conversion;
propene;
ethene; |
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【摘要】 |
采用静态水热法在F~--OH~-体系中,以四丙基氢氧化铵为模板剂、偏铝酸钠为铝源、正硅酸乙酯为硅源,合成了纳米SiO_2-ZSM-5分子筛,考察了F-/Al_2O_3物质的量比对所合成的ZSM-5分子筛织构性质和甲醇转化制丙烯催化性能的影响。结果发现,随着初始溶胶F~-/Al_2O_3物质的量比的增大,产物中SiO_2的含量增大,ZSM-5分子筛的相对结晶度有所降低;同时,分子筛的比表面积和孔容减小、酸强度降低、酸量减少。对于甲醇转化制丙烯,最佳F-/Al_2O_3物质的量比为12;此时,丙烯选择性高于45%,丙烯/乙烯(P/E)比值大于10。反应机理分析表明,过渡态择形选择性是控制烯烃选择性的重要因素。 |
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【英文摘要】 |
A static hydrothermal approach was adopted to synthesize nanosized SiO_2-ZSM-5 zeolite in the media of F--OH-with double mineralizers, using tetraethoxysilane, sodium aluminate, and tetrapropylammonium hydroxide as the silicon source,aluminum source,and template agent,respectively. The physical and chemical properties of the synthesized ZSM-5 zeolites were characterized and their catalytic performance was evaluated in the conversion methanol to propene( MTP); the effect of F-/Al_2O_3 molar ratio on the cata... |
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【基金】 |
supported by the National Nature Science Foundation of China(51303098,21477069,21506120);
Research Project Supported by Shanxi Scholarship Council of China(2016-104);
the Datong Science and Technology Public Relations Project(2015021,2018023);
the Doctoral Science Foundation of Shanxi Datong University(QD201049);
University Students’Innovation and Entrepreneurship of Shanxi Datong University(XDC2017257) |
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【更新日期】 |
2018-08-23 |
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【分类号】 |
TQ221.212;TQ426 |
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【正文快照】 |
The conversion of methanol to propene(M TP),as a non-petroleum route for propene production,is apotential substitute or supplement for the current steamcracking and fluid catalytic cracking units that producepropene.Several M TP processes have beenindustr |
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