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Catalysts 2017, 7(5), 141; doi:10.3390/catal7050141

Post Synthesis of Aluminum Modified Mesoporous TUD-1 Materials and Their Application for FCC Diesel Hydrodesulfurization Catalysts

1
State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
2
CNOOC Research Institute of Oil and Petrochemicals, Beijing 102209, China
3
Key Laboratory of Green Chemical Process, Wuhan Institute of Technology (Ministry of Education), Wuhan 430073, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Adam F. Lee
Received: 22 February 2017 / Revised: 30 April 2017 / Accepted: 2 May 2017 / Published: 7 May 2017
(This article belongs to the Special Issue Mesostructured Materials and Their Catalytic Applications)
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Abstract

Post-synthesis methods are a promising technology and have received much attention. In this paper, a series of post-synthesis aluminum modified TUD-1 (PAT) materials with different Al contents were successfully prepared by using aluminum isopropoxide to be Al sources, then the as-synthesized materials were adopted as support additives mixed with commercial γ-Al2O3 to prepare hydrodesulfurization (HDS) catalysts for FCC diesel. The supports and catalysts were analyzed using N2 adsorption-desorption, XRD, SEM, Py-IR, ICP, 27Al MAS NMR, UV-vis, H2-TPR and HRTEM techniques. The results of Py-IR and 27Al MAS NMR indicated that the addition of Al species could bring Lewis (L) and Brönsted (B) sites into Si-TUD-1, and that the material of PAT-3 had the highest total acidity sites and Brönsted acid sites among the series PAT composites. The HRTEM technique showed that, compared to the traditional catalyst NiMo/γ-Al2O3, the sulfided catalyst NiMo/APAT-3 had a relatively short length (3.2 nm) and suitable stacking number (2.5) of MoS2 slabs. The HDS efficiencies of all the catalysts were tested in a fixed bed micro-reactor with FCC diesel as feedstock. The catalytic results confirmed that the catalyst NiMo/APAT-3 possessed the highest HDS efficiency (97.0%), due to synergistic effects of advantageous properties such as higher acidity, moderate MSI, and relatively short length of the MoS2 slabs. View Full-Text
Keywords: aluminum modified; post synthesis method; TUD-1; FCC diesel aluminum modified; post synthesis method; TUD-1; FCC diesel
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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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MDPI and ACS Style

Xia, Z.; Fu, J.; Duan, A.; Han, L.; Wu, H.; Zhao, Z.; Xu, C.; Wang, D.; Wang, B.; Meng, Q. Post Synthesis of Aluminum Modified Mesoporous TUD-1 Materials and Their Application for FCC Diesel Hydrodesulfurization Catalysts. Catalysts 2017, 7, 141.

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