CATALYST, METHOD FOR PRODUCTION THEREOF AND METHOD FOR SINGLE-STEP SYNTHESIS OF PROPYLENE FROM ETHYLENE Russian patent published in 2016 - IPC B01J23/36 B01J23/44 B01J23/54 B01J21/04 B01J37/02 C07C6/04 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to oil and gas chemistry and relates to catalysts and processes for producing light olefins, particularly propylene. Catalyst for single-step synthesis of propylene from ethylene contains rhenium oxide Re₂O₇ and palladium oxide PdO, fixed on surface of anion-modified support. Support used is sulphated zirconium dioxide or mixture of sulphated zirconium dioxide with aluminium oxide. Catalyst contains, wt%: Re₂O₇ - 1.9-4.1, PdO - 0.9-1.1, $$S{O}_4^{2-}$$ - 6.7-8.0, Al₂O₃ - 0-46, ZrO₂ - balance. Method of producing catalyst includes successively impregnating support with aqueous solutions of palladium chloride and rhenic acid, drying and calcining after each impregnation procedure. Method for single-step synthesis of propylene from ethylene includes passing an ethylene stream through a fixed layer of disclosed catalyst at 40-80 °C, atmospheric pressure, mass rate of feeding ethylene 0.5 h^-1.

EFFECT: novel efficient catalyst for single-step synthesis of propylene from ethylene, which provides considerable increase of degree of conversion of ethylene and output of end product.

3 cl, 1 tbl, 9 ex