Cross metathesis of butene-2 and ethene to propene over Mo/MCM-22-Al2O3 catalysts with different Al2O3 contents

被引：23

作者：

Liu, Shenglin ^{[1
]}

Li, Xiujie ^{[1
]}

Xin, Wenjie ^{[1
]}

Xie, Sujuan ^{[1
]}

Zeng, Peng ^{[2
]}

Zhang, Lixin ^{[3
]}

Xu, Longya ^{[1
]}

机构：

[1] Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Liaoning, Peoples R China

[2] HQCEC Liaoning CO, Fushun 113008, Liaoning, Peoples R China

[3] Liaoning Petrochem Technol Coll, Jinzhou 121001, Liaoning, Peoples R China

来源：

JOURNAL OF NATURAL GAS CHEMISTRY | 2010年 / 19卷 / 05期

基金：

中国国家自然科学基金;

关键词：

butene-2; ethene; propene; metathesis; Mo; MCM-22-Al2O3; ALUMINA-SUPPORTED MOLYBDENUM; OLEFIN METATHESIS; TUNGSTEN-OXIDE; MO; REDUCIBILITY; PROPYLENE; ZEOLITE; STATE; NMR;

D O I：

10.1016/S1003-9953(09)60095-5

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A series of 3 0Mo/MCM-22 Al2O3 catalysts with gamma-Al2O3 contents in the range of 0-100 wt% were prepared and applied in the metathesis reaction of ethene and butene-2 Addition of gamma-Al2O3 did not affect the structure of MCM 22 zeolite as evidenced by XRD and N-2 adsorption measurements It was deduced from TPR experiments that gamma-Al2O3 phase favored the formation of polymolybdate or multilayered Mo oxide, while more Al-2(MoO4)(3) species were generated over MCM 22 zeolites Alumina content in the support was directly related to the metathesis activity of ethene and butene-2 to propene Mo species with higher valence (Mo6+ or Mo5+) contributed more to the excellent performance of catalyst than metallic Mo The best catalyst activity and stability was obtained over 3 0Mo/(MCM-22-30%Al2O3) under the reaction condition of 1 0 MPa and 125 degrees C using N-2 as the pretreatment gas

引用

页码：482 / 486

页数：5

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