Dispersion Ethylbenzene dehydrogenation

Carbon dioxide was proposed as an oxidant in dehydrogenation of ethylbenzene over zeolite-supported iron oxide catalyst, which was highly dispersed in zeolite matrix. The dehydrogenation was mainly proceeded under the oxidative pathway in the presence of carbon dioxide. The presence of carbon dioxide contributed to remarkable enhancement not only in dehydrogenation activity of catedyst but also of its coke resistance. 

Therefore, it can be concluded that carbon dioxide was utilized as an oxidant on dehydrogenation of ethylbenzene to improve its activity and that an active phase of iron oxide in the catalyst is considered to be rather reduced iron oxide, like Fc304, dispersed in zeolite matrix. 

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