(92f) Studies On the La2O3-Doped Al2O3 Supported Cobalt Catalyst for Fischer-Tropsch Synthesis
AIChE Spring Meeting and Global Congress on Process Safety
2010
2010 Spring Meeting & 6th Global Congress on Process Safety
10th Topical Conference on Gas Utilization
Kinetics, Design and Modeling of Fischer-Tropsch Catalysts and Reactions II
Tuesday, March 23, 2010 - 4:05pm to 4:30pm
Alumina was doped with lanthana, La2O3, by either impregnation or co-precipitation. The doped and undoped alumina were then used as supports for the preparation of cobalt catalysts by incipient wetness impregnation. The catalysts prepared were characterized by nitrogen adsorption-desorption, powder X-ray diffraction, hydrogen temperature programmed reduction, hydrogen temperature programmed desorption, O2-titration and diffuse reflectance infrared Fourier transform spectroscopy, and the catalytic properties for Fischer-Tropsch synthesis (FTS) has been evaluated. The results showed that La2O3 dopping affected the catalytic performance significantly. The catalyst with the La2O3-doped support prepared by co-precipitation showed better reducibility, activity and product selectivities. The higher ratio of the octahedral to tetrahedral cobalt species of the co-precipitated catalyst than the catalyst doped by impregnation might have caused the enhanced performance. The activity for adsorption of CO on the catalysts with different supports was consistent with the CO conversion for FTS. The presence of the hydrocarbonyl species, distinguished by its vibration feature, are directly related to the CO conversion and chain-growth.
Checkout
This paper has an Extended Abstract file available; you must purchase the conference proceedings to access it.
Do you already own this?
Log In for instructions on accessing this content.
Pricing
Individuals
2010 Spring Meeting & 6th Global Congress on Process Safety
AIChE Pro Members | $150.00 |
AIChE Graduate Student Members | Free |
AIChE Undergraduate Student Members | Free |
AIChE Explorer Members | $225.00 |
Non-Members | $225.00 |
10th Topical Conference on Gas Utilization only
AIChE Pro Members | $100.00 |
Fuels and Petrochemicals Division Members | Free |
AIChE Graduate Student Members | Free |
AIChE Undergraduate Student Members | Free |
AIChE Explorer Members | $150.00 |
Non-Members | $150.00 |