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Bare alumina support transforms into an active catalyst for the dehydrogenation of ethylbenzene to styrene in CO 2 or N 2 . During the first 15h time on stream in CO 2 , or the first 10h time on stream in N 2 , the alumina shows an increase in ethylbenzene conversion and styrene selectivity from 15% to 60% and from 60% to 92%, respectively, under industrially relevant...
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