Abstract
Ethylene is essential material for the petrochemical industry. Ethylene production via catalytic dehydration of ethanol over TiO 2/γ-Al 2O 3 catalysts in multi-microchannel reactors is reported in this paper. The physicochemical properties of these catalysts are characterized by X-ray diffraction (XRD) and FT-IR spectrum. The effects of operation parameters, such as ethanol concentration, reaction temperature and liquid hourly space velocity, have been investigated experimentally. The reaction results indicate that the catalysts doped with TiO 2 have high ethanol conversion of 99.96% and ethylene selectivity of 99.4%. Ethylene yield of 26 g/(g cat h) can be achieved, which provides very favorable foundation for the process intensification and miniaturization of the ethylene production process using bioethanol.
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