METHOD FOR HETEROGENEOUS CATALYTIC GAS-PHASE PARTIAL OXIDATION OF AT LEAST ONE INITIAL ORGANIC COMPOUND Russian patent published in 2012 - IPC B01J23/88 B01J8/06 C07C27/14 C07C45/35 C07C47/22 C07C51/215 C07C51/25 C07C57/55 C07B61/00 B01J23/76 B01J8/02 C07C47/20 

FIELD: chemistry.

SUBSTANCE: invention relates to an improved method for heterogeneous catalytic gas-phase partial oxidation of at least one initial organic compound selected from propylene, isobutene, acrolein, methacrolein, propane or isobutane with molecular oxygen on a fixed catalyst bed freshly put into a reaction space, in which, for partial oxidation, a reaction gaseous mixture containing at least one initial organic compound and molecular oxygen is passed through the fixed catalyst bed, and reaction heat is removed via indirect heat exchange with a liquid heat carrier directed outside the reaction space, and as the quality of the fixed catalyst bed falls with operation time, not all, but part of the fixed catalyst bed is replaced with part of a replacement fixed catalyst bed in order to restore the quality of the fixed catalyst bed, where the specific volume activity of the replacement part of the fixed catalyst bed is lower than that of the replaced part of the fixed catalyst bed in its fresh state.

EFFECT: deterioration of the quality of the fixed catalyst bed with operation time is compensated for by replacing part of the fixed catalyst bed with a replacement part of the fixed catalyst bed, where the rate of deactivation of the catalyst is lowest in the disclosed method.

10 cl, 2 ex