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

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

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

Faculty of Chemistry, Razi University, Kermanshah 0098831, Iran

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中图分类号: O643
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出版历程
- 收稿日期: 2013-10-11
- 修回日期: 2014-01-04
- 刊出日期: 2014-02-28

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

Faculty of Chemistry, Razi University, Kermanshah 0098831, Iran

摘要

摘要: 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
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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