Study on catalytic process of 1,3-butadiene from ethanol on MgO/SiO_2 catalyst

1,3-Butadiene is an important chemical raw material and a significant monomer for synthetic rubber.MgO/SiO2 catalyst is prepared by different methods.The structure and acidic-basic property of the catalysts are characterized by XRD,TPD and TEM.The influence of calcined temperature and MgO content of the MgO/SiO2 catalyst are studied.The results show that better catalytic performance can be obtained with wet-kneading method at 773K of calcined temperature.When mass fraction of MgO is 80%,the catalyst has the highest selectivity.