Steam reforming of liquid petroleum gas over Mn-promoted Ni/γ-Al2O3 catalysts

Jae Hyun Park, Doohwan Lee, Hyun Chul Lee, Eun Duck Park

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

Three different Mn-promoted Ni/γ-Al2O3 catalysts, Mn/Ni/γ-Al2O3, Mn-Ni/γ-Al2O3 and Ni/Mn/γ-Al2O3, were prepared and applied to the steam reforming of liquid petroleum gas (LPG) mainly composed of propane and butane. For comparison, Ni/γ-Al2O3 catalysts containing different amount of Ni were also examined. In the case of the Ni/γ-Al2O3 catalysts, 4.1 wt% Ni/γ-Al2O3 showed the stable catalytic activity with the least amount of coke formation. Among the various Mn-promoted Ni/γ-Al2O3 catalysts, Mn/Ni/γ-Al2O3 showed the stable catalytic activity with the least amount of coke formation. It also exhibited a similar H2 formation rate compared with Ni/γ-Al2O3. Several characterization techniques-N2 adsorption/desorption, X-ray diffraction (XRD), CO chemisorptions, temperature-programmed reduction (TPR), X-ray photoelectron spectroscopy (XPS) and CHNS analysis-were employed to characterize the catalysts. The catalytic activity increased with increasing amount of chemisorbed CO for the Mn-promoted Ni/γ-Al2O3 catalysts. The highest proportion of Mn4+ species was observed for the most stable catalyst.

Original languageEnglish
Pages (from-to)1132-1138
Number of pages7
JournalKorean Journal of Chemical Engineering
Volume27
Issue number4
DOIs
StatePublished - 2010

Keywords

  • Hydrogen
  • LPG
  • Manganese Oxides
  • Nickel
  • Steam Reforming

Fingerprint

Dive into the research topics of 'Steam reforming of liquid petroleum gas over Mn-promoted Ni/γ-Al2O3 catalysts'. Together they form a unique fingerprint.

Cite this