Synthesis of ZSM-23 (MTT) zeolites with different crystal morphology and intergrowths: effects on the catalytic performance in the conversion of methanol to hydrocarbons

Molino A.; Holzinger J.; Lukaszuk K. A.Rojo-Gama D.Gunnaes A. E.Skibsted J.Lundegaard L. F.Svelle S.Beato P.Bordiga S.Lillerud K. P.

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Synthesis of ZSM-23 (MTT) zeolites with different crystal morphology and intergrowths: effects on the catalytic performance in the conversion of methanol to hydrocarbons

机译：合成ZSM-23 (MTT)与不同沸石晶体形态和共生:影响催化性能的转换甲醇的碳氢化合物

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A series of zeolite ZSM-23 samples prepared with different organic structure-directing agents, gave rise to crystalline phases, which show a large variety of particle dimensions. A detailed analysis of the structure of these materials revealed the presence of different levels of stacking fault defects when using different recipes. The effect of crystal size and morphology was investigated in the methanol to hydrocarbon reaction at 400 degrees C, showing a predominant production of hydrocarbons in the range C-3-C6+ and negligible amount of aromatics (<3%) in all cases. More importantly, we show that methanol conversion and catalytic lifetime are strongly influenced by small differences in crystal size and morphology due to a preferential crystal growth along the microchannel direction.

机译：一系列的沸石ZSM-23样品准备不同的有机一类代理,显示了结晶阶段各种各样的粒子尺寸。这些材料的结构分析揭示了不同级别的当使用不同的堆垛层错的缺陷菜谱。甲醇的形态学研究烃反应在400摄氏度,显示主要生产的碳氢化合物范围C-3-C6 +和芳烃的微不足道在所有情况下(< 3%)。甲醇转化率和催化寿命深受小的差异呢晶体大小和形态由于优惠晶体生长的微通道方向。

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《Catalysis science & technology》 |2019年第23期|6782-6792|共11页
作者
Molino A.; Holzinger J.; Lukaszuk K. A.Rojo-Gama D.Gunnaes A. E.Skibsted J.Lundegaard L. F.Svelle S.Beato P.Bordiga S.Lillerud K. P.;
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作者单位

Aarhus Univ, Interdisciplinary Nanosci Ctr iNANO, Aarhus, Denmark;

Univ Oslo, Ctr Mat Sci & Nanotechnol, Dept Phys, Oslo, Norway;

Univ Oslo, Ctr Mat Sci & Nanotechnol, Dept Chem, Oslo, NorwayHaldor Topsoe Res Labs, Lyngby, Denmark;

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正文语种英语
中图分类汉语教学;
关键词
Crystal morphology; Methanol; CatalysisZeolite ZSM-23Grain size(Geology)intergrowthsHydrocarbonsZeolitessynthesis;

机译：水晶morphology;甲醇CatalysisZeoliteZSM-23Grain;

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Synthesis of ZSM-23 (MTT) zeolites with different crystal morphology and intergrowths: effects on the catalytic performance in the conversion of methanol to hydrocarbons

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