Textual properties of Cu-Mn mixed oxides and application for methyl formate synthesis from syngas

被引：30

作者：

Zhao, Haijun ^{[1
,2
]}

Fang, Kegong ^{[3
]}

Dong, Fang ^{[1
,2
]}

Lin, Minggui ^{[3
]}

Sun, Yuhan ^{[4
]}

Tang, Zhicheng ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Gansu, Peoples R China

[2] Chinese Acad Sci, Lanzhou Inst Chem Phys, Natl Engn Res Ctr Fine Petrochem Intermediates, Lanzhou 730000, Gansu, Peoples R China

[3] Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Shanxi, Peoples R China

[4] Chinese Acad Sci, Shanghai Adv Res Inst, Key Lab Low Carbon Convers Sci & Engn, Shanghai 201203, Peoples R China

来源：

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2017年 / 54卷

关键词：

Methyl formate; Cu-Mn mixed oxides; Syngas; Methanol; CaO-ZrO2; TEMPERATURE METHANOL SYNTHESIS; COPPER-MANGANESE OXIDES; ETHANOL TOTAL OXIDATION; MN/CA-ZR CATALYST; SELECTIVE OXIDATION; REACTION-KINETICS; SOLID BASE; COMBUSTION; TOLUENE; CO;

D O I：

10.1016/j.jiec.2017.05.024

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Cu-Mn mixed oxides with different calcination temperatures were prepared using ammonia complexing method and evaluated for methyl formate (MF) synthesis from syngas with CaO-ZrO2 as co-catalyst. The influence of calcination temperature on the structure and properties of Cu-Mn mixed oxides was investigated by appropriate characterizations. Cu1.5Mn1.5O4 formed during the calcination of Cu-Mn catalyst at 450 degrees C and played a significant role in the MF synthesis. However, it partially decomposed into CuO and MnO2 when the calcination temperature exceeded 550 degrees C. Results showed that the optimum MF selectivity was obtained on Cu-Mn catalyst calcined at 450 degrees C, and the highest CO conversion was obtained on the Cu-Mn sample with calcination temperature of 550 degrees C. The reaction mechanism of MF synthesis from syngas over Cu-Mn mixed oxides and CaO-ZrO2 co-catalyst was thoroughly studied via typical model reactions, and the nucleophilic addition elimination reaction mechanism was proposed. (C) 2017 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

引用

页码：117 / 125

页数：9

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