The Pb-GICs and K-Bi-GICs as new catalysts for the reaction of oxidative dehydrogenation of ethylbenzene have been studied. The reaction occurred on Pb-graphite with 36.5% selectivity to styrene and 62.5% conversion (at 720 degrees C and the feed : ethylbenzene - 3 g/h, water - 15 g/h and air - 6 dm(3)/h). The exploratory results of the application of K-Bi-GICs at 600 degrees C were : selectivity to styrene of 58.4% with conversion of 32.2% (ethylbenzene - 2.8 g/h, nitrogen 0.8 dm(3)/h, air - 1.7 dm(3)/h).