One-step synthesize of dimethoxymethane from methanol over Mn/Re/Cu catalysts

The synthesis of dimethoxymethane (DMM) by selective oxidization of methanol over CuO supported rhenium oxide and manganses oxide as catalyst in a fix-bed reactor was studied. Combining with the characterization of XRD, H₂-TPR and NH₃-TPD, it was found that higher temperature may promote methanol conversion and the selectivity of DMM. With addition of manganese as structural promoter, the methanol conversion and the selectivity of DMM were improved. The catalyst could oxidize methanol to DMM by its lattice oxygen atoms without O₂.