Effect of niobium promoter on iron-based catalyst for Fischer-Tropsch reaction

In the present work, we have modified Fe/CNTs catalysts with niobium. The catalysts were prepared using a wet impregnation method and promoted with niobium. Samples were characterized by nitrogen adsorption, H2-TPR, TPD, XRD and TEM. The Fischer-Tropsch Synthesis (FTS) was carried out in a fixed-bed...

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Main Authors: Ali, S., Mohd Zabidi, N. A., Subbarao, D.
Format: Citation Index Journal
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.7941 /
Published: Elsevier 2012
Subjects:
QD Chemistry
Online Access: http://eprints.utp.edu.my/7941/1/proof_-16122011_-j__fuel_chem_tech.pdf
http://eprints.utp.edu.my/7941/
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spelling utp-eprints.79412017-03-20T01:59:32Z Effect of niobium promoter on iron-based catalyst for Fischer-Tropsch reaction Ali, S. Mohd Zabidi, N. A. Subbarao, D. QD Chemistry In the present work, we have modified Fe/CNTs catalysts with niobium. The catalysts were prepared using a wet impregnation method and promoted with niobium. Samples were characterized by nitrogen adsorption, H2-TPR, TPD, XRD and TEM. The Fischer-Tropsch Synthesis (FTS) was carried out in a fixed-bed microreactor at 220°C, 1 atm and H2/CO=2 for 5h. Addition of niobium into Fe/CNTs increased the dispersion, decreased the average size of iron oxide nanoparticles and the catalyst reducibility. Niobium-promoted Fe catalyst resulted in appreciable increase in the selectivity of C5+ hydrocarbons and suppressed methane formation. These effects were more pronounced for the 0.04%Nb/Fe/CNTs catalyst, compared to those observed from other niobium compositions. The 0.04%Nb/Fe/CNTs catalyst enhanced the C5+ hydrocarbons selectivity by a factor of 67.5% and reduced the methane selectivity by a factor of 59.2%. Elsevier 2012-01 Citation Index Journal PeerReviewed application/pdf http://eprints.utp.edu.my/7941/1/proof_-16122011_-j__fuel_chem_tech.pdf Ali, S. and Mohd Zabidi, N. A. and Subbarao, D. (2012) Effect of niobium promoter on iron-based catalyst for Fischer-Tropsch reaction. [Citation Index Journal] http://eprints.utp.edu.my/7941/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
topic QD Chemistry
spellingShingle QD Chemistry
Ali, S.
Mohd Zabidi, N. A.
Subbarao, D.
Effect of niobium promoter on iron-based catalyst for Fischer-Tropsch reaction
description In the present work, we have modified Fe/CNTs catalysts with niobium. The catalysts were prepared using a wet impregnation method and promoted with niobium. Samples were characterized by nitrogen adsorption, H2-TPR, TPD, XRD and TEM. The Fischer-Tropsch Synthesis (FTS) was carried out in a fixed-bed microreactor at 220°C, 1 atm and H2/CO=2 for 5h. Addition of niobium into Fe/CNTs increased the dispersion, decreased the average size of iron oxide nanoparticles and the catalyst reducibility. Niobium-promoted Fe catalyst resulted in appreciable increase in the selectivity of C5+ hydrocarbons and suppressed methane formation. These effects were more pronounced for the 0.04%Nb/Fe/CNTs catalyst, compared to those observed from other niobium compositions. The 0.04%Nb/Fe/CNTs catalyst enhanced the C5+ hydrocarbons selectivity by a factor of 67.5% and reduced the methane selectivity by a factor of 59.2%.
format Citation Index Journal
author Ali, S.
Mohd Zabidi, N. A.
Subbarao, D.
author_sort Ali, S.
title Effect of niobium promoter on iron-based catalyst for Fischer-Tropsch reaction
title_short Effect of niobium promoter on iron-based catalyst for Fischer-Tropsch reaction
title_full Effect of niobium promoter on iron-based catalyst for Fischer-Tropsch reaction
title_fullStr Effect of niobium promoter on iron-based catalyst for Fischer-Tropsch reaction
title_full_unstemmed Effect of niobium promoter on iron-based catalyst for Fischer-Tropsch reaction
title_sort effect of niobium promoter on iron-based catalyst for fischer-tropsch reaction
publisher Elsevier
publishDate 2012
url http://eprints.utp.edu.my/7941/1/proof_-16122011_-j__fuel_chem_tech.pdf
http://eprints.utp.edu.my/7941/
_version_ 1741196110034108416
score 11.62408

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