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          Institute: Fritz-Haber-Institut     Collection: Inorganic Chemistry     Display Documents



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ID: 446319.0, Fritz-Haber-Institut / Inorganic Chemistry
Kinetic investigation of propane oxidation on diluted Mo1-V0.3-Te0.23-Nb0.125-Oxmixed-oxide catalysts
Authors:Widi, Restu Kartiko; Abd Hamid, Sharifah Bee; Schlögl, Robert
Language:English
Research Context:Mixed V/W/Mo oxides for selective oxidation
Date of Publication (YYYY-MM-DD):2009-11-03
Title of Journal:Reaction Kinetics and Catalysis Letters
Journal Abbrev.:React. Kinet. Catal. Lett.
Volume:98
Issue / Number:2
Start Page:273
End Page:286
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:Reaction kinetics and proposed mechanism for the oxidation of propane over diluted Mo1–V0.3–Te0.23–Nb0.125–O x are described. The kinetic study allowed determination of the orders of propane disappearance, propene formation, CO x formation, and acids formation. The results show that selective oxidation of propane to propylene over this catalyst follows the Langmuir-Hinshelwood mechanism. Deep oxidation of propane to carbon dioxide is first order with respect to hydrocarbon, and partial order (0.21) with respect to oxygen. The selective oxidation of propane to acrylic acid is half order with respect to hydrocarbon and partial order (0.11) with respect to oxygen, while water does not participate directly in propane transformation. The result also shows that the overall reaction consists of three parallel process channels. One main sequence of consecutive reactions leads to the desired product.
Free Keywords:Propane oxidation; Acrylic acid; Kinetic; Reaction pathways
External Publication Status:published
Document Type:Article
Communicated by:Robert Schlögl
Affiliations:Fritz-Haber-Institut/Inorganic Chemistry/Inorganic Chemistry
External Affiliations:Department of Chemical Engineering, University of Surabaya, TG Building 6th floor, Raya Kalirungkut Tenggilis, Surabaya, 60293, Indonesia
Combinatorial Technology and Catalysis Research Centre, COMBICAT, Institute of Postgraduate Studies, University of Malaya, 3rd floor, Block A, 50603 Kuala Lumpur, Malaysia
Identifiers:URL:http://dx.doi.org/10.1007/s11144-009-0092-3 [Open Access]
ISSN:0133-1736
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