Catalytic Properties of ZnLaZrSi-Oxide Systems in the Process of Obtaining 1,3-Butadiene from Ethanol-Aqueous Mixtures

The catalytic properties of ZnLaZrSi-oxide systems prepared on the basis of different types of silica (SBA-15, MCM-41, MCM-48, MCF, large-pore silica, Aerosil A-175) in the process of obtaining 1,3-butadiene (BD) from ethanol-aqueous mixtures were studied. It has been determined that the porous structure characteristics are not critical parameters for achieving high selectivity and yield of BD. The activity and selectivity of catalysts depends on the acid-base properties of their surface, which are determined by the type of silica. High values of selectivity for BD are achieved in the presence of catalysts based on KSKG silica (S-BD = 65-68%) and SBA-15 (S-BD = 63%).