METHOD FOR OBTAINING OLEFIN HYDROCARBONS Russian patent published in 2018 - IPC C07C5/333 C07C11/08 C07C11/10 B01J21/08 B01J23/04 B01J23/26 B01J35/02 B01J37/02 

FIELD: technological processes.

SUBSTANCE: proposed method for producing olefinic hydrocarbons by dehydrogenating the corresponding paraffinic hydrocarbon is carried out in a fluidized bed reactor-regenerator system of a mixture of finely dispersed alumina chromium catalysts with different attrition rates. Mixture of finely dispersed alumina chromium catalysts includes a catalyst with an attrition index of 15–30 % by weight in an amount of 41–97 % by weight and a catalyst with an attrition index of 1–10 % by weight is the balance.

EFFECT: increased capacity of hydrocarbon dehydrogenation plants C₃-C₅ and reduced costs in production.

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