Cyclehexene formation in the process of dehydrogenation of cyclohexane and caropn monoxide adsorprtion on palladium-graphite(pd-G)ads6rption on palladium-graphite (Pd-G), ruthenium-graphite (Ru-G) apd rutheniumJsilica. (Ru-SiOa)cataijsts were studied. ln the case of Pd-G catalysts cyclohexene yield eorresponds tg the ayerage valuds of CO-adsorption (Fig. 12). ln the case of RuG, the cataiyst, made by the eation exchange method, shows greater values of cyclohexene yield a nd CO-ad Sorption, than that made by the impregnation method (Table 2), ln the cases of Ru-G apd Ru-SiQs, - both of which yvgre prepareq by exchange method, we determined the initial rates-of forpaqtion of cyc.lo.he ene and bEnzene, and examined the dependence of these rates on the partial pressure oC h. ydrogen or cycloheXane. The reaction orders, obtained from the expongntiai. gxpression of cyelghe.xmen.e. fgrthatien, are -0.8 and 1 1.5 with respect to hydrogen and cyclohexem