CATALYST FOR HYDROLYSIS CONVERSION OF GLYCERINE INTO SIMPLE ALCOHOLS, A METHOD FOR PREPARING IT AND A METHOD FOR HYDROGENATION CONVERSION OF GLYCEROL INTO SIMPLE ALCOHOLS USING SAID CATALYST Russian patent published in 2019 - IPC B01J23/755 B01J21/04 B01J27/53 B82Y40/00 B01J37/08 C07C31/02 

FIELD: chemistry.

SUBSTANCE: invention relates to processing technology and relates to a catalyst for hydrogenation conversion of glycerol into simple alcohols, a method for preparing it and a method for hydrogenation conversion of glycerine into simple alcohols using said catalyst. Disclosed catalyst contains nickel nanoparticles on a support, which is represented by porous sulphated aluminum oxide with sulphate content of 2.0–7.2 wt%, with the following ratio of components, wt%: nickel – 5–30, sulphated aluminum oxide – the rest. Catalyst is prepared by impregnating sulphated aluminum oxide with an aqueous solution of a nickel compound of formula Ni(NO₃)₂⋅6H₂O with subsequent drying at temperature of 110 °C, calcining at temperature of 350 °C and reduction in hydrogen current at temperature 500 °C. Sulphated aluminum oxide is obtained by mixing aqueous solution of aluminum isopropylate with nitric acid and treating the obtained mixture with ammonium sulphate at temperature of 90–95 °C. Method for hydrogenation conversion of glycerol into simple alcohols involves feeding 50 % aqueous solution of glycerol and hydrogen into a flow reactor heated to temperature of 280–320 °C stationary layer of disclosed catalyst at pressure of 20 atm. and raw material feed rate of 2.8 cm³/h.

EFFECT: high selectivity of producing 1-propanol and simplifying the process by reducing pressure.

4 cl, 1 tbl, 9 ex