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Information × Registration Number 0223U001372, 0121U111813 , R & D reports Title Design of modified Y-Mg-Si(Al) oxide catalysts for the production of important chemicals (1,3-butadiene, 1-butanol) from bioethanol popup.stage_title Head Larina Olha V., Кандидат хімічних наук Registration Date 28-01-2023 Organization L. V. Pisarzhevskii Institute Of Physical Chemistry of The National Academy of Sciences of Ukraine popup.description2 It has been established that the acceleration of the key step of heterogeneous-catalytic processes of obtaining 1,3-butadiene and 1-butanol from ethanol, aldol condensation of acetaldehyde can be achieved by modifying oxide catalysts by compounds of rare earth elements. The introduction of a modifying additive Y (III) to the Mg-Al oxide catalyst at the stage of hydrotalcite synthesis and a decrease in maturation time of the mother liquor after the coprecipitation provides 24 % of the yield of 1-butanol in the process of ethanol gas-phase condensation. With the modification of Zn-MgSi oxide systems by alkali metals (Na, K), the selectivity of 1,3-butadiene (at >400°C) is achieved by reducing the formation of by-products. The alkali metals, as part of Zn-Zrsi oxide systems, cause a decrease in the selectivity to ethene and diethyl ether, due to a decrease in the content of strong acidic sites, which accelerate the side reaction of ethanol dehydration. Product Description popup.authors Valihura Karina V Zikrata Oksana V popup.nrat_date 2023-01-28 Close