METHOD OF PRODUCING ETHYLENE Russian patent published in 2014 - IPC C07C5/48 C07C11/04 B01J23/46 B01J23/52 B01J21/06 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing ethylene via oxidative dehydrogenation of ethane in a gaseous mixture of oxygen and ethane at high temperature in the presence of a mixed oxide catalyst of the composition Mo_1.0V_0.37Te_0.17Nb_0.12O₃ in a flow reactor. The reactor further includes a selective carbon monoxide oxidation catalyst, which is gold or rhodium on a titanium dioxide support, with the following ratio of components, wt %: gold 0.05-0.3, rhodium 0.5-1.0 and titanium dioxide - the balance, wherein the mixed oxide catalyst is located at the gaseous material inlet, and the selective carbon monoxide oxidation catalyst is located further downstream of the gas stream and the catalysts are taken in volume ratio of 80-90 and 20-10, respectively.

EFFECT: use of the disclosed method enables to achieve high conversion of oxygen, which facilitates further separation of ethylene from the reaction mixture and also makes reaction gaseous mixtures less explosive; the proposed volume ratio of catalysts loaded into the reactor enables to combine two reactions in a single process to obtain ethylene with a minimum amount of undesirable impurities.

4 cl, 4 ex, 1 tbl