Integrated Process Of Hydrogenation Of Furfural And Dehydrogenation Of 1.4-butanediol Over Cu/MgO Catalyst

Authors: JongChol Ri, HyokSu Ri, SongJin Kang, KangHyok Kim

Abstract: The local temperature rise of the catalyst due to exothermic reaction in the gas-phase hydrogenation of furfural was designed to suppress and realize temperature stabilization using endothermic reaction by dehydrogenation of 1.4-butanediol. The simultaneous hydrogenation of furfural and the dehydrogenation of 1.4-butanediol using Cu/MgO catalyst in one reactor was constructed and the effect of mixture ratio of furfural and 1.4-butanediol in the feedstock, reactor pressure and inlet temperature on the adiabatic temperature change of the reactor was analyzed. When the mixture ratio of furfural and 1.4-butanediol feed was 1:1.2, the temperature change in the 1 m range of reactor length was about 20–30 °C, and the hydrogen produced in the dehydrogenation of 1.4-butanediol was used for the hydrogenation of furfural, while the conversion of furfural was over 99% and the selectivity of furfural alcohol was over 95%.