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The formation of carbon-containing species was studied during propane dehydrogenation on a chromia/alumina catalyst with 13.5 wt% chromium. The deposition was monitored by in situ DRIFT spectroscopy combined with mass spectrometry, and by in situ Raman spectroscopy combined with gas chromatography. The reduction of chromates by propane resulted in the formation of adsorbed acetone, formates, and acetates...
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