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Energy Sources, Part A: Recovery, Utilization, and Environmental Effects Volume 34, 2012 - Issue 15
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Original Articles

Hydrotreating Behavior of Ni-Mo/SiO2-Al2O3 for the Upgrading of Heavy Oil From Coal Liquefaction

Z. P. Lei School of Chemistry and Chemical Engineering, Anhui Key Laboratory of Coal Clean Conversion and Utilization, Anhui University of Technology, Maanshan, P.R. China
,
L. J. Gao School of Chemistry and Chemical Engineering, Anhui Key Laboratory of Coal Clean Conversion and Utilization, Anhui University of Technology, Maanshan, P.R. China
,
H. F. Shui School of Chemistry and Chemical Engineering, Anhui Key Laboratory of Coal Clean Conversion and Utilization, Anhui University of Technology, Maanshan, P.R. China
,
S. B. Ren School of Chemistry and Chemical Engineering, Anhui Key Laboratory of Coal Clean Conversion and Utilization, Anhui University of Technology, Maanshan, P.R. China
&
Z. C. Wang School of Chemistry and Chemical Engineering, Anhui Key Laboratory of Coal Clean Conversion and Utilization, Anhui University of Technology, Maanshan, P.R. China
Pages 1363-1370 | Received 14 Feb 2010, Accepted 19 Mar 2010, Published online: 07 Jun 2012
 
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Abstract

Ni-Mo/SiO2-Al2O3 with different Si/Al molar ratios were synthesized, characterized, and evaluated for upgrading of heavy oil derived from the direct coal liquefaction process. The results indicated that the Si/Al ratio has a significant influence on the dispersion of MoS2 and the hydrodenitrogenation activity. The larger Si/Al ratio causes the Ni-Mo/SiO2-Al2O3 to form the larger MoS2 crystallite. In the upgrading of coal-derived heavy oil, the hydrodenitrogenation and hydrodearomatization activities of Ni-Mo/SiO2-Al2O3 (Si/Al: 5) reached 53 and 60%, respectively, which are significantly higher than that of Ni-Mo/Al2O3.

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