Imperial College London
Alternate

Dr Paul Boldrin

Faculty of Engineering, Department of Earth Science & Engineering

Research Associate
 
 
 
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Contact

 

+44 (0)20 7594 9695p.boldrin

 
 
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Location

 

3.50Royal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Gallagher:2016:10.1098/rsta.2015.0087,
author = {Gallagher, JR and Boldrin, P and Combes, GB and Ozkaya, D and Enache, DI and Ellis, PR and Kelly, G and Claridge, JB and Rosseinsky, MJ},
doi = {10.1098/rsta.2015.0087},
journal = {Royal Society of London. Philosophical Transactions A. Mathematical, Physical and Engineering Sciences},
title = {The effect of Mg location on Co-Mg-Ru/γ-Al2O3 Fischer–Tropsch catalysts},
url = {http://dx.doi.org/10.1098/rsta.2015.0087},
volume = {374},
year = {2016}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The effectiveness of Mg as a promoter of Co-Ru/γ-Al2O3 Fischer-Tropsch catalysts depends on how and when the Mg is added. When the Mg is impregnated into the support before the Co and Ru addition, some Mg is incorporated into the support in the form of MgxAl2O3+x if the material is calcined at 550°C or 800°C after the impregnation, while the remainder is present as amorphous MgO/MgCO3 phases. After subsequent Co-Ru impregnation MgxCo3-xO4 is formed which decomposes on reduction, leading to Co(0) particles intimately mixed with Mg, as shown by high-resolution transmission electron microscopy. The process of impregnating Co into an Mg-modified support results in dissolution of the amorphous Mg, and it is this Mg which is then incorporated into MgxCo3-xO4. Acid washing or higher temperature calcination after Mg impregnation can remove most of this amorphous Mg, resulting in lower values of x in MgxCo3-xO4. Catalytic testing of these materials reveals that Mg incorporation into the Co oxide phase is severely detrimental to the site-time yield, while Mg incorporation into the support may provide some enhancement of activity at high temperature.
AU  - Gallagher,JR
AU  - Boldrin,P
AU  - Combes,GB
AU  - Ozkaya,D
AU  - Enache,DI
AU  - Ellis,PR
AU  - Kelly,G
AU  - Claridge,JB
AU  - Rosseinsky,MJ
DO  - 10.1098/rsta.2015.0087
PY  - 2016///
SN  - 1364-503X
TI  - The effect of Mg location on Co-Mg-Ru/γ-Al2O3 Fischer–Tropsch catalysts
T2  - Royal Society of London. Philosophical Transactions A. Mathematical, Physical and Engineering Sciences
UR  - http://dx.doi.org/10.1098/rsta.2015.0087
UR  - http://hdl.handle.net/10044/1/32430
VL  - 374
ER  -
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