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Effect of boron promotion on coke formation during propane dehydrogenation over Pt/γ-Al2O3 catalysts

Mostafa Aly (UGent) , Esteban Fornero (UGent) , Andrés Ricardo León Garzón (UGent) , Vladimir Galvita (UGent) and Mark Saeys (UGent)
(2020) ACS CATALYSIS. 10(9). p.5208-5216
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Abstract
The effect of boron promotion on the performance of 3 wt % Pt/gamma-Al2O3 catalysts during propane dehydrogenation was investigated. A series of boron-promoted Pt/XB-gamma-Al2O3 catalysts were synthesized, tested, and characterized. The sequential impregnation of 1 wt % boron and 3 wt % platinum decreases the amount of deposited carbon 3-fold, increases the propylene selectivity from 90% to 98%, and enhances the activity after 12 h by 40%. Catalyst characterization and thermodynamic DFT calculations suggest that boron forms a finely dispersed amorphous oxide on the gamma-Al2O3 support and on the platinum particles, modifying both the selectivity of the metal sites and the strength and number of acid sites on the support.
Keywords
platinum catalysts, boron oxide promotion, alkane dehydrogenation, coking, catalyst stability, dehydrogenation, support acidity, borated alumina, PT-SN CATALYSTS, CARBON DEPOSITION, PERFORMANCE, STABILITY, KINETICS, ETHANE, COBALT, HYDROGENATION, NANOPARTICLES, RESISTANCE

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MLA
Aly, Mostafa, et al. “Effect of Boron Promotion on Coke Formation during Propane Dehydrogenation over Pt/γ-Al2O3 Catalysts.” ACS CATALYSIS, vol. 10, no. 9, 2020, pp. 5208–16, doi:10.1021/acscatal.9b05548.
APA
Aly, M., Fornero, E., León Garzón, A. R., Galvita, V., & Saeys, M. (2020). Effect of boron promotion on coke formation during propane dehydrogenation over Pt/γ-Al2O3 catalysts. ACS CATALYSIS, 10(9), 5208–5216. https://doi.org/10.1021/acscatal.9b05548
Chicago author-date
Aly, Mostafa, Esteban Fornero, Andrés Ricardo León Garzón, Vladimir Galvita, and Mark Saeys. 2020. “Effect of Boron Promotion on Coke Formation during Propane Dehydrogenation over Pt/γ-Al2O3 Catalysts.” ACS CATALYSIS 10 (9): 5208–16. https://doi.org/10.1021/acscatal.9b05548.
Chicago author-date (all authors)
Aly, Mostafa, Esteban Fornero, Andrés Ricardo León Garzón, Vladimir Galvita, and Mark Saeys. 2020. “Effect of Boron Promotion on Coke Formation during Propane Dehydrogenation over Pt/γ-Al2O3 Catalysts.” ACS CATALYSIS 10 (9): 5208–5216. doi:10.1021/acscatal.9b05548.
Vancouver
1.
Aly M, Fornero E, León Garzón AR, Galvita V, Saeys M. Effect of boron promotion on coke formation during propane dehydrogenation over Pt/γ-Al2O3 catalysts. ACS CATALYSIS. 2020;10(9):5208–16.
IEEE
[1]
M. Aly, E. Fornero, A. R. León Garzón, V. Galvita, and M. Saeys, “Effect of boron promotion on coke formation during propane dehydrogenation over Pt/γ-Al2O3 catalysts,” ACS CATALYSIS, vol. 10, no. 9, pp. 5208–5216, 2020.
@article{8660852,
  abstract     = {{The effect of boron promotion on the performance of 3 wt % Pt/gamma-Al2O3 catalysts during propane dehydrogenation was investigated. A series of boron-promoted Pt/XB-gamma-Al2O3 catalysts were synthesized, tested, and characterized. The sequential impregnation of 1 wt % boron and 3 wt % platinum decreases the amount of deposited carbon 3-fold, increases the propylene selectivity from 90% to 98%, and enhances the activity after 12 h by 40%. Catalyst characterization and thermodynamic DFT calculations suggest that boron forms a finely dispersed amorphous oxide on the gamma-Al2O3 support and on the platinum particles, modifying both the selectivity of the metal sites and the strength and number of acid sites on the support.}},
  author       = {{Aly, Mostafa and Fornero, Esteban and León Garzón, Andrés Ricardo and Galvita, Vladimir and Saeys, Mark}},
  issn         = {{2155-5435}},
  journal      = {{ACS CATALYSIS}},
  keywords     = {{platinum catalysts,boron oxide promotion,alkane dehydrogenation,coking,catalyst stability,dehydrogenation,support acidity,borated alumina,PT-SN CATALYSTS,CARBON DEPOSITION,PERFORMANCE,STABILITY,KINETICS,ETHANE,COBALT,HYDROGENATION,NANOPARTICLES,RESISTANCE}},
  language     = {{eng}},
  number       = {{9}},
  pages        = {{5208--5216}},
  title        = {{Effect of boron promotion on coke formation during propane dehydrogenation over Pt/γ-Al2O3 catalysts}},
  url          = {{http://dx.doi.org/10.1021/acscatal.9b05548}},
  volume       = {{10}},
  year         = {{2020}},
}

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