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K-Fe-MnO/Silicalite-2 is a desirable eatalyst for the productionof light olefins from CO2 hydrogenation The activity can be improvedgreatly with inereasing the Fe loading. and the selectivities to hydrocarbonsrise with Fe loading merease Hpwever. an ambiguous effect of Fe loadingon the selectivity of light olefin in hydrocarbon products is observed TheCO2 hydrogenstion containing a two-step mechanism CO2+H2 CO+H2O. a reversible water gas shift reaclion. and CO+(m/2n+1H2 1 /nCnHm+H2O2a Frscher-Tropsch reaction is suggested by the results ofCO2-TPI ) and CO2/H2-TPSR as well as CO/H2-TPSR characteri/ations
K-Fe-MnO / Silicalite-2 is a desirable eatalyst for the production of light olefins from CO2 hydrogenation The activity can be improved with inereasing the Fe loading. And the selectivities to hydrocarbonsrise with Fe loading merease Hpwever. An ambiguous effect of Fe loading on the selectivity of light olefin in hydrocarbon products is observed TheCO2 hydrogenstion contains a two-step mechanism CO2 + H2 CO + H2O. a reversible water gas shift reaclion. and CO + (m / 2n + 1H2 1 / nCnHm + H2O2a Frscher-Tropsch reaction is suggested by the results ofCO2-TPI) and CO2 / H2-TPSR as well as CO / H2-TPSR characteri / ations