Titre du document / Document title

Catalytic oxidation of dimethyl ether to dimethoxymethane over Cs modified H₃PW₁₂O₄₀/SiO₂ catalysts

Auteur(s) / Author(s)

QINGDE ZHANG ^{(1 2)} ; YISHENG TAN ⁽¹⁾ ; CAIHONG YANG ⁽¹⁾ ; YIZHUO HAN ⁽¹⁾ ; SHAMOTO Jun ⁽³⁾ ; TSUBAKI Noritatsu ⁽³⁾ ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

⁽¹⁾ State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, Shanxi, CHINE
⁽²⁾ Graduate University of Chinese Academy of Sciences, Beijing 100049, CHINE
⁽³⁾ Department of Applied Chemistry, University of Toyama, Toyama 930-8555, JAPON

Résumé / Abstract

The attractive utilization route for one-step catalytic oxidation of dimethyl ether to dimethoxymethane was successfully carried out over the H₃PW₁₂O₄₀(40%)/SiO₂ catalyst, modified by Cs, K, Ni, and V. The Cs modification of H₃PW₁₂O₄₀(40%)/SiO₂ gave the most promising result of 20% dimethyl ether conversion and 34.8% dimethoxymethane selectivity. Dimethoxymethane could be synthesized via methoxy groups decomposed from dimethyl ether through the synergistic effect between the acid sites and the redox sites of Cs modified H₃PW₁₂O₄₀ (40%)/Si02.

Revue / Journal Title

Journal of natural gas chemistry   ISSN 1003-9953 

Source / Source

2007, vol. 16, n^o3, pp. 322-325 [4 page(s) (article)] (10 ref.)

Langue / Language

Anglais

Editeur / Publisher

Dalian Institute of Chemical Physics, Chengdu, CHINE  (1992) (Revue)

Mots-clés anglais / English Keywords

X ray diffractometry ; Motor gasoline ; Additive ; Nickel ; Catalyst ; Methyl ether ; Oxidation ;

Mots-clés français / French Keywords

Diméthoxyméthane ; Diffractométrie RX ; Essence auto ; Additif ; Nickel ; Catalyseur ; Méthyle éther ; Oxydation ;

Mots-clés espagnols / Spanish Keywords

Difractometría RX ; Gasolina coche ; Aditivo ; Niquel ; Catalizador ; Oxidación ;

Mots-clés d'auteur / Author Keywords

dimethyl ether: dimethoxymethane ; catalytic oxidation ; Cs modified H3PW12O40/SiO2 ; XRD ;

Localisation / Location

INIST-CNRS, Cote INIST : 27827, 35400016250319.0150