Development of niobium-promoted cobalt catalysts on carbon nanotubes for Fischer-Tropsch synthesis

Cobalt-based catalysts were prepared using wet impregnation method on carbon nanotubes (CNTs) support and promoted with niobium. Samples were characterized by nitrogen adsorption, TEM, XRD, TPR, TPO, and TPD. Addition of niobium increased the cobalt dispersion but decreased the catalyst’s reducibil...

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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.6998 /
Published: Elsevier 2011
Subjects:
QD Chemistry
Online Access: http://eprints.utp.edu.my/6998/1/Rev_%283%29_-_J_Nat_Gas-_niobium-promoted_cobalt_catalyst-_2032011.pdf
http://www..jngc.org
http://eprints.utp.edu.my/6998/
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spelling utp-eprints.69982017-03-20T01:59:36Z Development of niobium-promoted cobalt catalysts on carbon nanotubes for Fischer-Tropsch synthesis Ali, S. Mohd Zabidi, N. A. Subbarao, D. QD Chemistry Cobalt-based catalysts were prepared using wet impregnation method on carbon nanotubes (CNTs) support and promoted with niobium. Samples were characterized by nitrogen adsorption, TEM, XRD, TPR, TPO, and TPD. Addition of niobium increased the cobalt dispersion but decreased the catalyst’s reducibility. Fischer-Tropsch synthesis (FTS) was carried out in a fixed-bed microreactor at 543 K, 1 atm and H2/CO=2 for 5 h. Addition of niobium enhanced the C5+ hydrocarbons selectivity by 39 % and reduced methane selectivity by 59%. These effects were more pronounced for the 0.04%Nb/Co/CNTs catalyst, compared to those observed for other niobium compositions. Elsevier 2011-11 Citation Index Journal PeerReviewed application/pdf http://eprints.utp.edu.my/6998/1/Rev_%283%29_-_J_Nat_Gas-_niobium-promoted_cobalt_catalyst-_2032011.pdf http://www..jngc.org Ali, S. and Mohd Zabidi, N. A. and Subbarao, D. (2011) Development of niobium-promoted cobalt catalysts on carbon nanotubes for Fischer-Tropsch synthesis. [Citation Index Journal] http://eprints.utp.edu.my/6998/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
topic QD Chemistry
spellingShingle QD Chemistry
Ali, S.
Mohd Zabidi, N. A.
Subbarao, D.
Development of niobium-promoted cobalt catalysts on carbon nanotubes for Fischer-Tropsch synthesis
description Cobalt-based catalysts were prepared using wet impregnation method on carbon nanotubes (CNTs) support and promoted with niobium. Samples were characterized by nitrogen adsorption, TEM, XRD, TPR, TPO, and TPD. Addition of niobium increased the cobalt dispersion but decreased the catalyst’s reducibility. Fischer-Tropsch synthesis (FTS) was carried out in a fixed-bed microreactor at 543 K, 1 atm and H2/CO=2 for 5 h. Addition of niobium enhanced the C5+ hydrocarbons selectivity by 39 % and reduced methane selectivity by 59%. These effects were more pronounced for the 0.04%Nb/Co/CNTs catalyst, compared to those observed for other niobium compositions.
format Citation Index Journal
author Ali, S.
Mohd Zabidi, N. A.
Subbarao, D.
author_sort Ali, S.
title Development of niobium-promoted cobalt catalysts on carbon nanotubes for Fischer-Tropsch synthesis
title_short Development of niobium-promoted cobalt catalysts on carbon nanotubes for Fischer-Tropsch synthesis
title_full Development of niobium-promoted cobalt catalysts on carbon nanotubes for Fischer-Tropsch synthesis
title_fullStr Development of niobium-promoted cobalt catalysts on carbon nanotubes for Fischer-Tropsch synthesis
title_full_unstemmed Development of niobium-promoted cobalt catalysts on carbon nanotubes for Fischer-Tropsch synthesis
title_sort development of niobium-promoted cobalt catalysts on carbon nanotubes for fischer-tropsch synthesis
publisher Elsevier
publishDate 2011
url http://eprints.utp.edu.my/6998/1/Rev_%283%29_-_J_Nat_Gas-_niobium-promoted_cobalt_catalyst-_2032011.pdf
http://www..jngc.org
http://eprints.utp.edu.my/6998/
_version_ 1741196098959048704
score 11.62408

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