Citation: Chang Xi MIAO, Ming SHAN. Influence of Addition of ZnO on Property of Fe₂O₃-K₂O System Catalyst for Ethylbenzene Dehydrogenation to Styrene[J]. Chinese Chemical Letters, ;2004, 15(1): 93-96. shu

Influence of Addition of ZnO on Property of Fe₂O₃-K₂O System Catalyst for Ethylbenzene Dehydrogenation to Styrene

Chang Xi MIAO ,
Ming SHAN

Shanghai Research Institute of Petrochemical Technology, Shanghai 201208

Received Date: 20 December 2002

Fund Project: We are grateful for financial support from China Petrochemical Corporation (Project 499014).

The incorporation of ZnO into Fe₂O₃-K₂O system increases its activity, enhances its moisture stability and mechanical strength. The origin of the enhancement in activity and moisture stability is discussed in the light of experimental results obtained by BET, XRD, XPS. It was found that the addition of ZnO to Fe₂O₃-K₂O system strengthens the interaction between Fe₂O₃ and K₂O, reduces the formation temperature of KFe₁₁O₁₇ at least by 50℃, and promotes the transformation of Fe³⁺ to Fe²⁺ further.
- Fe₂O₃-K₂O system,
- ethylbenzene dehydrogenation,
- crush strength,
- moisture stability
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