Study on iron-manganese catalysts for Fischer-Tropsch synthesis

MOSTAFA FEYZI; FATANEH JAFARI

Study on iron-manganese catalysts for Fischer-Tropsch synthesis

Faculty of Chemistry, Razi University, Kermanshah 6714967346, Iran

详细信息

通讯作者:
MOSTAFA FEYZI, Tel/Fax:+98 831 4274559, E-mail:Dalahoo2011@yahoo.com.

中图分类号: TE624.4
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出版历程
- 收稿日期: 2012-01-29
- 修回日期: 2012-04-25
- 刊出日期: 2012-05-31

Study on iron-manganese catalysts for Fischer-Tropsch synthesis

Faculty of Chemistry, Razi University, Kermanshah 6714967346, Iran

摘要

摘要: Iron-manganese catalysts were prepared by co-precipitation method. Characterization of catalysts was carried out by using X-ray diffraction (XRD), scanning electron microscopy (SEM), temperature program reduction (TPR), N₂ adsorption-desorption measurements. The results from catalytic performance tests in Fischer-Tropsch synthesis showed that the iron-manganese catalysts are supersensitive to catalyst composition and materials source. It was found that C_2～4 light olefins increased while CH₄ and CO₂ decreased by using iron-manganese catalyst prepared from iron (Ⅱ) sulfate (A catalyst). The activity and selectivity of A catalyst was studied in different operational conditions. The results showed that the best operational conditions for C_2～4 light olefins production were H₂/CO=1/1 (GHSV=2 400 h^-1) at 260 ℃ under 0.3 MPa total pressure.
- iron-manganese catalyst /
- catalytic performance /
- operational conditions /
- Fischer-Tropsch synthesis
Abstract: Iron-manganese catalysts were prepared by co-precipitation method. Characterization of catalysts was carried out by using X-ray diffraction (XRD), scanning electron microscopy (SEM), temperature program reduction (TPR), N₂ adsorption-desorption measurements. The results from catalytic performance tests in Fischer-Tropsch synthesis showed that the iron-manganese catalysts are supersensitive to catalyst composition and materials source. It was found that C_2～4 light olefins increased while CH₄ and CO₂ decreased by using iron-manganese catalyst prepared from iron (Ⅱ) sulfate (A catalyst). The activity and selectivity of A catalyst was studied in different operational conditions. The results showed that the best operational conditions for C_2～4 light olefins production were H₂/CO=1/1 (GHSV=2 400 h^-1) at 260 ℃ under 0.3 MPa total pressure.
- iron-manganese catalyst /
- catalytic performance /
- operational conditions /
- Fischer-Tropsch synthesis

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参考文献(34)

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