METHOD OF PRODUCING OLEFINS Russian patent published in 2011 - IPC C07C6/04 C07C11/02 C07C11/06 B01J23/30 

FIELD: chemistry.

SUBSTANCE: method of producing olefins via a metathesis reaction, involving supply of gaseous olefin for passage through a catalyst bed in the presence of hydrogen gas, for converting olefin to another type of olefin, the catalyst bed containing a catalyst which contains at least one metal selected from a group comprising tungsten, molybdenum, rhenium, niobium, tantalum and vanadium, and a cocatalyst which contains a basic composition containing at least one metal selected from groups Ia (alkali metals), IIa (alkali-earth metals), IIb and IIIa of the periodic table. The improvement lies in controlling the reduced velocity of gas passing through the catalyst bed which ranges from 0.01 to 2.0 m/s, wherein the reaction pressure ranges from 0.01 to 20 MPa and the amount of the cocatalyst relative the catalyst ranges from 0.1 to 20 of the weight.

EFFECT: use of the method increases efficiency of the metathesis reaction for producing olefins in the presence of hydrogen along with suppression of secondary production of paraffins.

3 cl, 4 ex, 1 dwg