Stability and phase transitions of potassium-promoted iron oxide in various g…

Abstract. Potassium-promoted iron oxide dehydrogenation catalysts are the primary catalysts used for producing styrene. In this process, a large amount of steam is used and for economic reasons it is desirable to be able to operate at lower steam/ethylbenzene molar ratios without creating severe short-term deactivation. To address this issue, it is essential to understand how the catalyst d…