Please use this identifier to cite or link to this item:
|Title:||Catalytic partial oxidation of methane to syngas over Ca-decorated-Al2O3-supported Ni and NiB catalysts||Authors:||Chen, L.
|Issue Date:||2005||Citation:||Chen, L., Lu, Y., Hong, Q., Lin, J., Lu, Y., Dautzenberg, F.M. (2005). Catalytic partial oxidation of methane to syngas over Ca-decorated-Al2O3-supported Ni and NiB catalysts. Applied Catalysis A: General 292 (1-2) : 295-304. ScholarBank@NUS Repository.||Abstract:||One wt% Ni and 1 wt% NiB catalysts supported on Ca-decorated γ-Al2O3 (Ca-AlO) supports were prepared by conventional impregnation and chemical reduction methods. These supported catalysts were applied for the catalytic partial oxidation of methane (POM) to syngas. The two low-Ni-loading catalysts have shown high activity/selectivity for the POM, as good as those of 1 wt% Rh and 10 wt% Ni catalysts supported on commercial γ-Al2O3 support (AlO). But their coking resistivity was remarkably better than that of 10 wt% Ni/AlO. The coke formation over these catalysts decreased in the following order: 10 wt% Ni/AlO ≫ 1 wt% Ni/Ca-AlO > 1 wt% NiB/Ca-AlO ∼ 1 wt% Rh/AlO. The key factor in the improvement of the carbon resistance was to decrease the metallic Ni particle size through the lowering of Ni loading combined with the addition of B promoter. The low Ni loading has been achieved by covering the support with a CaAl2O4 layer, and decreasing the catalyst calcination temperature to ∼723 K. The formation of crystalline carbon was greatly suppressed on the NiB catalysts due to the highly dispersed nature; such formation significantly improved the thermal stability of the Ni particles. © 2005 Elsevier B.V. All rights reserved.||Source Title:||Applied Catalysis A: General||URI:||http://scholarbank.nus.edu.sg/handle/10635/27315||ISSN:||0926860X|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Mar 7, 2018
WEB OF SCIENCETM
checked on Dec 31, 2018
checked on Apr 18, 2019
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.