Use of Seydisehir alumina as a support for Co oxidation catalysts

Date

2003-05-01

Author

Mbaraka, I
Üner, Deniz

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An Al2O3 sample obtained from Seydisehir Eti Aluminyum A.S was treated and characterized for its potential use as a catalyst support. Atomic absorption spectroscopy and flame photometry characterization revealed the presence of 95.52% Al2O3 , 4.44% Na2O, and 0.043% Fe2O3 in the original sample. Both gamma-Al2O3 and alpha-Al2O3 phases were identified in the crystalline structure by X-ray diffraction analysis. However, alpha-Al2O3 was found to be the phase in abundance. The BET surface area of the original sample was found to be 40.85 m(2)/g. The original sample was treated in various concentrations of hydrochloric acid to remove Na2O impurity. The acid concentration was optimized for the Na-2 O removal efficiency and surface area enhancement. The optimum HCl concentration was found to be 1 M. 1 Pt/Al2O3 catalysts prepared from these supports and a reference support (Johnson Matthey gamma-Al2O3) were tested for CO oxidation reactions. Catalysts prepared fromSeydisehir alumina showed reasonable activity for the CO oxidation reaction.

Subject Keywords

Alumina, Platinum, CO oxidation

URI

https://hdl.handle.net/11511/32933

Journal

CHEMICAL ENGINEERING COMMUNICATIONS

DOI

https://doi.org/10.1080/00986440390207611

Collections

Department of Chemical Engineering, Article

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Citation Formats

I. Mbaraka and D. Üner, “Use of Seydisehir alumina as a support for Co oxidation catalysts,” CHEMICAL ENGINEERING COMMUNICATIONS, pp. 1073–1084, 2003, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/32933.