CATALYST FOR CONTINUOUS OXIDATIVE DEHYDROGENATION OF ETHANE AND METHOD FOR CONTINUOUS OXIDATIVE DEHYDROGENATION OF ETHANE USING SAID CATALYST Russian patent published in 2013 - IPC B01J23/16 B01J27/57 B01J21/00 B01J35/04 C07C5/333 

FIELD: chemistry.

SUBSTANCE: present invention relates to a catalyst and a method for continuous oxidative dehydrogenation of paraffins to corresponding olefins, specifically ethane to ethylene. Described is a catalyst for continuous oxidative dehydrogenation of ethane to ethylene, which contains a mixed oxide catalyst phase which contains ions of metals such as vanadium, molybdenum, niobium, tellurium or antimony, deposited on a support in form of an inert gas-permeable porous ceramic membrane with a deposited mixed oxide catalyst phase on the outer side of the membrane surface. Described also is a method for continuous oxidative dehydrogenation of ethane to ethylene in the presence of the disclosed catalyst by feeding an ethane-containing gas onto the outer side of the membrane surface coated with catalyst, and an oxygen-containing gas is fed onto the inner side of the membrane surface which is not coated with catalyst at temperature of 300°C-550°C, pressure ranging from atmospheric pressure to 10 MPa and volume rate of feeding material of 500-2000 h^-1.

EFFECT: increase in ethylene selectivity to 98% and output of the process from 800 to 1400-2240 g/h per kg catalyst, high process safety since it enables to separate the hydrocarbon stream from the stream of oxygen-containing gas, thereby minimising the probability of their mixing, thus preventing formation of explosive mixtures.

4 cl, 1 tbl, 8 ex