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The characterization of Ni- and Co-based catalysts for autothermal reforming process

Songip, A. R. and Nasri, N. S. and Latiff, M. H. A. (2004) The characterization of Ni- and Co-based catalysts for autothermal reforming process. Proceedings of Advances in Malaysian Fuel Cell Research and Development . pp. 120-128.

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Abstract

A simple technique approach was used to characterize the structural and chemical properties of COO-NiO catalysts supported on 6-AI2O3, HZSM-5 and Mg0-Al203. The morphology of the catalysts was studied by X-Ray diffraction to determine the phase composition and the particle size of thc catalysts. Temperature-programmed reduction (TPR) reveals the formation of NiO and Co30.1 in dependence on temperature in case of catalysts supported on &A1201 and Mg0-A1203 at higher metal loading. The catalysts supported on HZSM-5 also show appearance of NiO. COO and C0~0.4, which could lead to deactivation of the catalysts via formation of coke on the catalyst surface. The formation of Ni0-Coo-Mg0 solid solution supported on MgO-A1203 exhibited stronger interaction between metal and support thus can make the catalysts more resistant to sintering and enhance the structure durability of catalyst in high temperature methane reforming process.

Item Type:Article
Uncontrolled Keywords:Alumina; COO-NiO; Characterizations; HZSM-5; Mg0-Al103; solid solution; teniperature-programnied reduction; X-ray diffraction
Subjects:T Technology > TP Chemical technology
Divisions:Chemical and Natural Resources Engineering (Formerly known)
ID Code:750
Deposited By: Pn Norazana Ibrahim
Deposited On:22 Feb 2007 05:52
Last Modified:21 Dec 2011 04:23

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