The Effect of the Addition of Promoter to Ni Supported Perovskite, Hydrotalcite and Metal Oxide Catalysts On the Autothermal Reforming of Propane

Wednesday, November 10, 2010
Hall 1 (Salt Palace Convention Center)
Woori Kim1, GaYoung Choi1, Dong Ju Moon2, Gon Seo3, Young Chul Kim3 and Nam Cook Park3, (1)Advanced Chemical Engineering, Chonnam National University, Gwangju, South Korea, (2)Korea Institute of Science and Technology, Seoul, South Korea, (3)School of Applied Chemical Engineering, Chonnam National University, Gwangju, South Korea

Autothermal reforming (ATR) of propane is considered the major processes for producing hydrogen. LPG is a commercial gas that is easily transport, and propane is a constituent of LPG. In this present work autothermal reforming (ATR) of propane for hydrogen production is studied by Ni loaded perovskite, hydrotalcite and metal oxides catalysts and then theses are promoted by the addition of promoter. The Ni supported catalysts were characterized by X-ray diffraction (XRD), Transmission electron microscope (TEM), Temperature programmed reduction (TPR) and Thermo gravimetric analysis (TGA) techniques. Ni supported catalysts were investigated for the autothermal reforming(ATR) of propane in a fixed-bed flow reactor. Reactant ratio of H2O/C3H8/O2=8.96/1.0/1.1 and the amount of catalyst used 0.15g reduced with 10%H2/N2 for 1h at 600C. Among various Ni supported catalysts, Ni/ZrO2 catalyst showed higher activity at low temperature. The order of catalytic activity was ZrO2³LaAlO3>Al2O3>MgAl. Ceria oxide has been widely used as promoter due to its high oxygen storage capacity, acting as thermal stabilizer of the support, allowing better dispersion of the metal. TGA results showed that the influence of the addition of ceria on the reaction presented reduced catalyst deactivation. In the case of Ni/MgAl with ceria, the yield is higher than Ni/MgAl's. These results are related to the size of particle in XRD.

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See more of this Session: Poster Session of CRE Division
See more of this Group/Topical: Catalysis and Reaction Engineering Division