Kinetics and mechanism of partial oxidation of ethane to ethylene and acetic acid over MoV type catalysts

• Published in: Applied catalysis. A, General General, 2010-02, Vol.375 (1), p.17-25
• Main Authors: Rahman, Faizur, Loughlin, Kevin F., Al-Saleh, Muhammad A., Saeed, Mian R., Tukur, Nasir M., Hossain, Mohammad M., Karim, Khalid, Mamedov, Agaddin
• Format: Article
• Language: English
• Subjects: Acetic acid; Catalysis; Catalysts; Chemistry; Eley-Rideal-Redox model; Ethane; Ethane partial oxidation; Ethylene; Exact sciences and technology; General and physical chemistry; Kinetic model; Mathematical models; MoV type catalyst; Oxidation; Reaction kinetics; Reaction mechanism; Reaction network; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
• ISSN: 0926-860X; 1873-3875
• DOI: 10.1016/j.apcata.2009.11.026

A kinetics study for the partial oxidation of ethane to ethylene and acetic acid is performed over MoV type catalysts. It is established that ethylene is the primary product and acetic acid and carbon oxides are secondary products. Formation of acetic acid product increases significantly with the co-feeding of water into the reactor. The elementary steps of the reaction network are formulated using a two-site Eley-Rideal-Redox (ERR) model, which includes the participation of water in the reaction scheme through surface OH − groups. The derived ERR model predicts the experimental data satisfactorily. A kinetics study for the partial oxidation of ethane to ethylene and acetic acid is performed over MoV type catalysts. It is established that ethylene is the primary product and acetic acid and carbon oxides are secondary products. Formation of acetic acid product increases significantly with the co-feeding of water. The elementary steps of the reaction network are formulated using a two-site Eley-Rideal-Redox (ERR) model.