Volume 46, Issue 12 pp. 16629-16642
RESEARCH ARTICLE

Sensitivity analysis and selectivity optimization of Fischer-Tropsch reaction over a Fe-Co bimetallic nanocatalyst

Amin Einbeigi

Amin Einbeigi

Department of Chemical Engineering, Faculty of Engineering, University of Sistan and Baluchestan, Zahedan, Iran

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Hossein Atashi

Hossein Atashi

Department of Chemical Engineering, Faculty of Engineering, University of Sistan and Baluchestan, Zahedan, Iran

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Seyyed Hossein Zohdi

Corresponding Author

Seyyed Hossein Zohdi

Department of Chemical Engineering, Faculty of Engineering, University of Sistan and Baluchestan, Zahedan, Iran

Correspondence

Seyyed Hossein Zohdi, Department of Chemical Engineering, Faculty of Engineering, University of Sistan and Baluchestan, P.O.Box 98164-161, Zahedan, Iran.

Email: [email protected]

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Ali Akbar Mirzaei

Ali Akbar Mirzaei

Department of Chemistry, Faculty of sciences, University of Sistan and Baluchestan, Zahedan, Iran

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Neda Poudineh

Neda Poudineh

Department of Chemical Engineering, Faculty of Engineering, University of Sistan and Baluchestan, Zahedan, Iran

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First published: 06 July 2022

Funding information: University of Sistan and Baluchestan

Summary

In this paper, the effects of operating conditions on CO hydrogenation reactions were explored by statistical-based selectivity models in the presence of a γ-Al2O3 supported Fe-Co bimetallic nanocatalyst. The temperature, pressure, and feed ratio varied in 1 to 7 bar, 573 to 663 K, 0.5 to 2, respectively; while the GHSV was 3000 h−1 in a fixed bed micro-reactor. Response surface methodology indicated that optimum conditions for the production of maximum olefins and minimum CH4, paraffin, and carbon dioxide involved T = 579 K, H2/CO = 1, and P = 1 bar. The increase in H2/CO, pressure, and temperature reduced olefin selectivity and raised the selectivity of paraffin, CH4, and carbon dioxide. SEM and BET techniques were used to characterize the catalyst.

DATA AVAILABILITY STATEMENT

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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