2. DMO Hydrogenation over Silica-Supported Cu-Based Bimetallic Catalysts.
| Catalysts | XDMO/% | SMG/% | SEG/% |
|---|---|---|---|
| Cu–Ni x O y /SiO2 | 98.9 | 5.5 | 89.2 |
| Cu–Cr x O y /SiO2 | 73.8 | 56.2 | 40.7 |
| Cu–Zn x O y /SiO2 | 64.6 | 70.7 | 25.8 |
| Cu–Fe x O y /SiO2 | 60.1 | 74.6 | 22.3 |
Reaction conditions: H2 pressure, 2.6 MPa; reaction temperature, 185 °C; molar ratio of H2/DMO, 60/1; LHSV of 0.8h–1, based on 15 wt % DMO methanol solution.
Other byproducts include ethanol, 1,2-butanediol, and extreme trace amounts of methyl formate and methyl acetate.