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Received May 16, 2009
Accepted June 27, 2009
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The difference in hydrogenation performance between Ni-in-Al2O3 and Ni-on-Al2O3 for hydrotreating of crude 2-ethylhexanol
1Advanced Material & Technology Institute, University of Science and Technology Beijing, Beijing 100083, China 2PetroChina Daqing Research Center of Chemical Engineering, Daqing 163714, China
lixiaogang99@263.net
Korean Journal of Chemical Engineering, January 2010, 27(1), 55-61(7), 10.1007/s11814-009-0317-1
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Abstract
Two mesoporous material Ni/γ-Al2O3 catalysts were prepared and characterized by ICP-AES, XRD, and TPR. The differences in reaction activity between Ni-in-Al2O3 and Ni-on-Al2O3 were investigated for hydrotreating of crude 2-ethylhexanol. The results show that the Ni species (Ni-on-Al2O3) exhibit excellent hydrogenation activities at a wide range of H2 pressure and space velocity, while the Ni species (Ni-in-Al2O3) exhibit similar activities with those of Ni-on-Al2O3 only at higher H2 pressure and lower space velocity. Due to the presence of extensively exposed Ni species on the Ni-on-Al2O3 catalyst, its hydrogenation performance was increased significantly because of the low interphase mass transfer resistance.
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