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Chemistry, Chemical engineering and Bioengineering

October 31, 2025; Paris, France: IX International Scientific and Practical Conference «DÉBATS SCIENTIFIQUES ET ORIENTATIONS PROSPECTIVES DU DÉVELOPPEMENT SCIENTIFIQUE»


CATALYST SELECTION AND TECHNOLOGY FOR THE PRODUCTION OF METHANOL AND DIMETHYL ETHER BASED ON LOCAL RAW MATERIALS


DOI
https://doi.org/10.36074/logos-31.10.2025.016
Published
31.10.2025

Abstract

The work used Al2O3*CuO*ZnO*ZrO2//HSZ and CuO*Al2O3*ZnO//HSZ catalysts with the following composition for methanol synthesis. Two-flow devices were used to conduct catalytic experiments: 2-4 MPa in the pressure range and 0.2-0.6 MPA (low pressure device) in the range. Catalyst activation was conducted in a nitrogen-hydrogen stream (≈2 Vol.% H2 at N2, consumption ≈2 l/h). Contact Time, s∙kgkat/l defined by formula: τ=3600m/Vkir, conversion of methanol to dimethyl ether (DME) calculated by formula: ХСН3ОН = 2СDME∙100(2СDME+ См).The conversion of methanol to DME rises as contact duration increases (volumetric velocity decreases). Pressure reduction reduces the rate of methanol production but has no effect on methanol dehydration. As a result, the higher the methanol synthesis, the lower the pressure at the same contact time.

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