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- W1978807128 abstract "Hierarchically porous composite zeolite (BFZ, with Beta zeolite cores and Y zeolite polycrystalline shells) was employed as the methanol dehydration catalyst in the direct synthesis of dimethyl ether (DME) from syngas in a fixed-bed reactor. The correlation between the catalytic activity and the textural and acid properties of the dehydration catalyst was investigated. The results indicate that the composite zeolite of H-form (HBFZ) exhibits moderate acid strength and meso-porosity, which is responsible for the high activity of CO hydrogenation. For the direct synthesis of DME from CO hydrogenation over the physical mixture of commercial CuO/ZnO/Al2O3 catalyst (CZA) and the H-form zeolites (HBFZ or HY), CZA/HBFZ exhibits higher activity and stability than CZA/HY. Under 250°C, 5.0 MPa and 1500 h−1, the conversion of CO and the selectivity to DME over CZA/HBFZ achieve 94.2% and 67.9%, respectively." @default.
- W1978807128 created "2016-06-24" @default.
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- W1978807128 date "2013-07-01" @default.
- W1978807128 modified "2023-10-18" @default.
- W1978807128 title "Synthesis of dimethyl ether from syngas using a hierarchically porous composite zeolite as the methanol dehydration catalyst" @default.
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- W1978807128 doi "https://doi.org/10.1016/s1872-5813(13)60037-7" @default.
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