Dehydrogenation of ethylbenzene with an activated carbon-supported vanadium catalyst

Dehydrogenation of ethylbenzene on alumina-pillared Fe-rich saponites

“…The use of many catalysts, which mainly consist of Fe and K oxides containing one or more promoters (Mg, Ce, Cr, Mo, V, Ca), and acid solids such as zeolites and metal phosphates, has been reported. There is a continuous search for more efficient catalysts and reaction conditions; some of the new catalysts formulations proposed also involving iron oxides [10][11][12][13][14][15][16][17][18][19][20][21][22][23][24].…”

Ethylbenzene Dehydrogenation in the Presence of Carbon Dioxide over Metal Oxides

“…Badstube et al (2000), for instance, have investigated catalysts based on iron supported on activated carbon in ethylbenzene dehydrogenation coupled with the reverse of water gas shift reaction and have found high activity and selectivity to styrene at 550 ºC. In addition, Sakurai et al (2000) have studied active-carbon supported vanadium catalysts at 450-650 °C and also have noted high conversion (67.1%) and selectivity to styrene (80%) at 550 °C. They also found that ethylbenzene conversion in the presence of carbon dioxide was 14% higher than in the presence of argon.…”

Supported Vanadia Catalysts for Dehydrogenation of Ethylbenzene with CO2

“…Catalytic behavior for selective oxidation on vanadium oxide-based catalysts is related with the redox properties of vanadium species [15]. Sakurai et al [6] and Park et al [16] studied the performance of V/AC, V/MgO and V/Al 2 O 3 catalysts in the CO 2 -EBDH and proposed that the reaction proceeded according to the redox mechanism. Sun et al [9] also showed that over V/Al 2 O 3 the redox cycle is crucial for the CO 2 activation.…”

“…Suzaki and co-workers [6,7] reported that active carbon-supported vanadium catalysts exhibit high catalytic activity, afforded high styrene yield at 550°C in EBDH to styrene in the presence of carbon dioxide. However, it suffered from severe catalyst deactivation due to coke deposition.…”