METHOD OF PRODUCING ETHYLENE Russian patent published in 2014 - IPC C07C2/84 C07C5/48 C07C11/04 B01J23/10 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing ethylene, which includes a step for oxidative condensation of methane in a gaseous mixture at atmospheric pressure and high temperature in the presence of a catalyst containing manganese and sodium tungstate on a silicon oxide support. The a catalyst which further contains cerium oxide is used at the step for oxidative condensation of methane, with the following ratio of components, wt %: manganese 1-2, sodium tungstate 3-5, cerium oxide 3-4 and silicon oxide - the balance, and the process is carried out in a flow-type double-deck reactor by contacting a fixed catalyst bed for oxidative condensation of methane, located on the upper deck of the decked reactor and heated to 750-800°C, with a methane-air mixture or methane-oxygen mixture in the ratio CH₄/O₂=4-7/1, with volume rate of feeding the gaseous material of 1000-5000 h^-1,followed by mixing the formed reaction gases heated to 750-800°C, said gases containing an ethane-ethylene fraction with an additional amount of cold air fed into the space between the decks, and the obtained gaseous mixture with ratio C₂H₆/O₂=2/1 is fed into the lower deck of the reactor and contacted with a catalyst for oxidative dehydrogenation of ethane located therein, which is a mixed oxide composition of the formula Mo_1.0V_0.37Te_0.17Nb_0.12O_3, heated to 380-420°C.

EFFECT: use of the present method enables to achieve high selectivity and efficiency with respect to formation of ethylene while simultaneously reducing power consumption.

3 tbl, 5 ex