Study of Ethanol/Acetaldehyde to 1,3-Butadiene Over MgO-SiO2 Catalyst: Comparative Investigation of Deactivation Behaviour Due to Carbon Deposition

被引：15

作者：

Zhang, Minhua ^{[1
,2
]}

Qin, Yu'nan ^{[1
,2
]}

Tan, Xuechao ^{[1
,2
]}

Wang, Lingtao ^{[1
,2
]}

Yu, Yingzhe ^{[1
,2
]}

Jiang, Haoxi ^{[1
,2
]}

机构：

[1] Tianjin Univ, R&D Ctr Petrochem Technol, Minist Educ, Key Lab Green Chem Technol, Tianjin 300072, Peoples R China

[2] Tianjin Univ, Res & Dev Ctr Petrochem Technol, Tianjin 300072, Peoples R China

来源：

CATALYSIS LETTERS | 2020年 / 150卷 / 05期

基金：

中国国家自然科学基金;

关键词：

1; 3-Butadiene; Carbon decomposition; Ethanol; MgO-SiO2; catalyst; ETHANOL CONVERSION; SELECTIVE CONVERSION; BUTADIENE; ZEOLITES; ACETALDEHYDE; LEBEDEV; PERFORMANCE; CHEMISTRY; MECHANISM; INSIGHTS;

D O I：

10.1007/s10562-019-03049-2

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this paper, the MgO-SiO2 catalyst was prepared with the deposition-precipitation method, which was used to catalyse the conversion of ethanol to 1,3-butadiene through a two-step process. The carbon deposition deactivation of the catalyst was mainly caused by that the carbon species occupied the acid-basic active sites on the catalyst surface. The carbon deposition mainly includes chain alkanes and aromatic compounds from outer to inner layers, and its site was mainly MgSiO3, followed by MgO, while SiO2 showed weak carbon deposition ability. Graphic

引用

页码：1462 / 1470

页数：9

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