SBA-16-Supported Cobalt Catalyst with High Activity and Stability for FischerâTropsch Synthesis
SBA-16 molecular sieves were used as support to prepare cobalt catalyst for FischerâTropsch synthesis (FTS). The catalysts were characterized by using TEM, power XRD, temperature-programmed reduction, and N2 adsorptionâdesorption. The analyses indicate that most of the Co3O4 nanoparticles were...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley-VCH Verlag GmbH & Co KGaA
2012
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| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/4530/1/SupportedCobaltChemCatChem2012.pdf http://umpir.ump.edu.my/id/eprint/4530/ http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1867-3899 |
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| Summary: | SBA-16 molecular sieves were used as support to prepare
cobalt catalyst for FischerâTropsch synthesis (FTS). The catalysts were characterized by using TEM, power XRD, temperature-programmed reduction, and N2 adsorptionâdesorption. The analyses indicate that most of the Co3O4 nanoparticles were introduced into the SBA-16 cages, and the SBA-16 mesostructure was retained after cobalt impregnation. The Co/SBA-16 catalyst exhibited higher cobalt dispersion compared to theCo/SiO2 catalyst. The catalytic properties of the catalysts in FTS were evaluated in a fixed-bed reactor. The effect of the addition
of water was measured in a continuously stirred tank reactor. High FTS activity and stability were observed on the SBA-16-supported catalyst. The SBA-16-supported cobalt catalyst shows low mobility of cobalt particles in the SBA-16 cages. Unlike silica, the SBA-16 support can efficiently prevent the aggregation and sintering of cobalt nanoparticles. |
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