BIFUNCTIONAL CATALYST AND THE METHOD OF PRODUCTION OF THE HYDROGEN-ENRICHED GASEOUS MIXTURE FROM DIMETHYL ETHER Russian patent published in 2006 - IPC B01J23/83 B01J21/04 C01B3/32 

FIELD: hydrogen power engineering; the catalytic method of realization of the dimethyl ether steam conversion reaction.

SUBSTANCE: the invention is pertaining to the catalytic method of realization of the dimethyl ether (DME) steam conversion reaction for the purpose to produce the hydrogen-enriched gas mixture, which may be used in the hydrogen power engineering, in particular, as the fuel for feeding the fuel cells of the different designation. The invention presents the bifunctional catalyst of the dimethyl ether (DME) steam conversion containing the acidic centers for hydration of DME into the methanol, and the copper-containing centers for the steam conversion of methanol, and representing by itself the copper-ceric oxide deposited on the aluminum oxide. The invention also presents the method of production of the hydrogen-enriched gas mixture by interaction of DME and steam at the temperature of 200-400°C, pressure of 1-100 atm, molar ratio of H₂О/DME equal to 2-10 at presence of the described above catalyst. The technical result of the invention is the high hydrogen efficiency, production of the hydrogen-containing gas with the low contents of carbon oxide at the ratio steam/DME equal to the stoichiometric (H₂O/DME=3), that has the relevant technological value.

EFFECT: the invention ensures the high hydrogen efficiency, production of the hydrogen-containing gas with the low contents of carbon oxide at the suitable ratio steam to DME, that has the relevant technological value.

5 cl, 15 ex, 6 tbl