Dimethoxymethane production via CO2 hydrogenation in methanol over novel Ru based hierarchical BEA

被引：16

作者：

Ahmad, Waqar ^{[1
]}

Chan, Fan Liang ^{[1
]}

Shrotri, Abhijit ^{[2
]}

Palai, Yayati Naresh ^{[2
]}

Wang, Huanting ^{[1
]}

Tanksale, Akshat ^{[1
]}

机构：

[1] Monash Univ, Dept Chem Engn, Clayton, Vic 3800, Australia

[2] Hokkaido Univ, Inst Catalysis, Sapporo, Hokkaido 0010021, Japan

来源：

JOURNAL OF ENERGY CHEMISTRY | 2022年 / 66卷

基金：

澳大利亚研究理事会;

关键词：

Dimethoxymethane; Methanol solvent; C(O)2 hydrogenation; Hierarchical BEA; SiO2/Al2O3 molar ratio; Ru catalysts; DIMETHYL ETHERS OME; CARBON-MONOXIDE; ZEOLITE-BETA; SELECTIVE-HYDROGENATION; CATALYTIC-HYDROGENATION; EFFICIENT SYNTHESIS; LOW-TEMPERATURE; LIQUID FUELS; DRY GEL; CONVERSION;

D O I：

10.1016/j.jechem.2021.07.026

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Dimethoxymethane (DMM), a diesel blend fuel, is being researched with high interest recently due to its unique fuel properties. It is commercially produced via a two step-process of methanol oxidation to make formaldehyde, followed by its condensation with methanol. This study presents a one-pot method of DMM synthesis from methanol mediated carbon dioxide hydrogenation over novel heterogeneous catalysts. The effect of catalyst pore structure was investigated by synthesizing 3 wt% Ru over novel hierarchical zeolite beta (HBEASX) and comparing against Ru doped commercial zeolite beta (CBEA) and desilicated hierarchical zeolite beta (HBZDS). The results showed that 3%Ru/HBEASX provided the best activity for DMM production due to its large average pore size. It also showed the decisive role of SiO2/Al2O3 molar ratio, with SiO2/Al2O3 = 75 providing the highest DMM yield of 13.2 mmol/g(cat).L-MeOh with ca. 100% selectivity. The activity of 3%Ru/HBEAS3 after 5 recycle steps demonstrated the reusability of this catalyst. (C) 2021 Published by ELSEVIER B.V. and Science Press on behalf of Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences.

引用

页码：181 / 189

页数：9

共 56 条

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