2012, №3

сс. 69-73

Catalytic oxidative coupling of dimethyl ether in supercritical conditions

2012, №3

сс. 69-73

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V.I. Bogdan, A.L. Kustov, L.M. Glukhov, A.N. Kalenchuk, L.M. Kustov, I.P. Beletskaya

Key words: supercritical fluid, catalytic oxidation, dimethyl ether, monoglim

For the first time the reaction of catalytic oxidative coupling of dimethyl ether (DME) in supercritical conditions is investigated. Oxidation of dimethyl ether by molecular oxygen in the presence of a СаO—SnO2 catalyst was carried out in the medium of excess reactant (DME) and in its mixtures with carbon dioxide in supercritical (SC) conditions (100 atm, 250—300 °C). At 255 °C a maximum conversion of DME (approaching 40 % at monoglim: diglim ratio about 2:1) is reached at 20-fold (by volume) dilution of DME with SC-CO2.

doi:10.1134/S1990793113070051