The sol-gel derived Co-Mn/TiO<sub>2</sub> catalysts for light olefins production

Mohammad Mehdi Khodaei; Mostafa Feyzi; Jahangir Shahmoradi; Mohammad Joshaghani

Volume 42 Issue 02

Feb. 2014

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Mohammad Mehdi Khodaei, Mostafa Feyzi, Jahangir Shahmoradi, Mohammad Joshaghani. The sol-gel derived Co-Mn/TiO2 catalysts for light olefins production[J]. Journal of Fuel Chemistry and Technology, 2014, 42(02): 212-218.

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Mohammad Mehdi Khodaei, Mostafa Feyzi, Jahangir Shahmoradi, Mohammad Joshaghani. The sol-gel derived Co-Mn/TiO₂ catalysts for light olefins production[J]. Journal of Fuel Chemistry and Technology, 2014, 42(02): 212-218.

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The sol-gel derived Co-Mn/TiO₂ catalysts for light olefins production

Faculty of Chemistry, Razi University, Kermanshah 0098831, Iran

Received Date: 2013-10-11
Rev Recd Date: 2014-01-04
Publish Date: 2014-02-28

Abstract

Abstract

In this research work, two 30%(Co-Mn)/TiO₂ catalysts were prepared using sol-gel (catalyst A) and co-precipitation (catalyst B) methods. The activity and selectivity to C_2~4 light olefins in Fischer-Tropsch synthesis (FTS) has been studied in a fixed-bed reactor under different operational conditions. These operational conditions were: temperature 220~280 ℃, and total pressure from 0.1~0.6 MPa. The optimum operating conditions were investigated after steady state. As the results shown, the catalyst A was more selective to C_2~4 olefins (58.7% in 260 ℃) and catalyst B was more selective to C₅₊ hydrocarbons. Characterization of both catalysts was carried out by using X-ray diffraction (XRD), scanning electron microscopy (SEM) and N₂ adsorption-desorption measurements methods.
- Fischer-Tropsch synthesis,
- light olefins,
- characterization

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References

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