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Catalysts 2018, 8(9), 371; https://doi.org/10.3390/catal8090371

Performance of an Auto-Reduced Nickel Catalyst for Auto-Thermal Reforming of Dodecane

1
Research Institute of Advanced Energy Technology, Kyungpook National University, Daegu 41566, Korea
2
Department of Chemical Engineering, Kyungpook National University, Daegu 41566, Korea
3
Korea Evaluation Institute of Industrial Technology (KEIT), Daegu 41069, Korea
4
Wonik Materials Co., Cheongju 28125, Korea
5
Korea Institute of Energy Research, Daejeon 34129, Korea
Seong Bin Jo and Dong Geon Ju contributed equally to this work.
*
Authors to whom correspondence should be addressed.
Received: 17 July 2018 / Revised: 20 August 2018 / Accepted: 20 August 2018 / Published: 3 September 2018
(This article belongs to the Section Metal Catalysis)
Full-Text   |   PDF [2307 KB, uploaded 3 September 2018]   |  

Abstract

To investigate the catalytic performance of diesel reforming catalysts for production of hydrogen gas, Ni-Al catalyst was prepared by the polymer-modified incipient method (NA10-PM). NA10-PM showed excellent catalytic performance and economic feasibility in the auto-thermal reforming reaction, compared to other commercially available catalysts. In particular, auto-reduced NA10-PM showed higher dodecane conversion and similar selectivity at 750 °C compared to H2-reduced NA10-PM. X-ray diffraction (XRD) studies showed that the fresh state of NA10-PM initially automatically reduced by product gases through thermal decomposition of dodecane, and then NiAl2O4 was completely reduced to metallic nickel by the CO and H2 gases produced during the reaction. Additionally, catalytic performance of auto-reduced NA10-PM were investigated at varying steam/carbon molar ratio (S/C) and oxygen/carbon molar ratio (O2/C) in order to determine the optimum conditions of the auto-thermal reforming reaction. The conversion of dodecane over auto-reduced NA10-PM catalyst was remarkable (93%) and increased during the reaction, under conditions of S/C = 1.23, O2/C = 0.25, and gas hourly space velocity of 12,000 h−1 at 750 °C. The results of this study demonstrated that the auto-reduced NA10-PM catalyst was applied successfully for auto-thermal reforming of dodecane. View Full-Text
Keywords: auto-thermal reforming; nickel; thermal decomposition; auto-reduction; polymer-modified incipient method auto-thermal reforming; nickel; thermal decomposition; auto-reduction; polymer-modified incipient method
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Jo, S.B.; Ju, D.G.; Jung, S.Y.; Ha, D.S.; Chae, H.J.; Lee, S.C.; Kim, J.C. Performance of an Auto-Reduced Nickel Catalyst for Auto-Thermal Reforming of Dodecane. Catalysts 2018, 8, 371.

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