Citation: LIU Zongzhang, ZHANG Tong, XU Yuchao, JIANG Haoxi, ZHANG Minhua. Preparation of MgO/SBA-15 Catalyst and Its Catalytic Performance for the Synthesis of 1, 3-Butadiene from Ethanol[J]. Chinese Journal of Applied Chemistry, ;2019, 36(2): 176-181. doi: 10.11944/j.issn.1000-0518.2019.02.180157 shu

Preparation of MgO/SBA-15 Catalyst and Its Catalytic Performance for the Synthesis of 1, 3-Butadiene from Ethanol

^aKey Laboratory for Green Chemical Technology of Ministry of Education, R & D Center for Petrochemical Technology; ^bCollaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin 300072, China

Corresponding author: ZHANG Minhua,
Received Date: 7 May 2018
Revised Date: 5 June 2018
Accepted Date: 19 July 2018

Figures(5)

The novel MgO/SBA-15 catalysts were prepared via impregnation of magnesium oxide onto the SBA-15 zeolite support. The effect of MgO content on the structure, physic-chemical properties and catalytic performances of catalysts was studied by Brunauer-Emmett-Teller(BET) measurement, X-ray diffraction(XRD), transmission electron microscopy(TEM), ²⁹Si NMR(nuclear magnetic resonance) spectroscopy, NH₃-TPD(temperature programmed desorption) and CO₂-TPD. It is found that the catalyst with 20% mass fraction of MgO can form well-dispersed MgO in the inner pores of SBA-15 zeolite and the Mg-O-Si structure between MgO and SBA-15, which is beneficial to the production of 1, 3-butadiene. Under the optimal reaction conditions of 350℃ and feed weight hourly space velocity of 2.64 h^-1, the best catalytic performance is obtained with the ethanol conversion of 55.8% and the 1, 3-butadiene selectivity of 80.2%. The MgO/SBA-15 catalyst has potential applications in the production of butadiene from ethanol.
- MgO/SBA-15 catalyst,
- ethanol,
- 1, 3-butadiene
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