Hydrogen production by steam reforming of methane over mixed Ni/MgAl + CrFe<inf>3</inf>O<inf>4</inf> catalysts

Na Young Kim, Eun Hyeok Yang, Sung Soo Lim, Jae Sun Jung, Jae Suk Lee, Gi Hoon Hong, Young Su Noh, Kwan Young Lee, Dong Ju Moon

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Steam reforming of methane (SRM) was performed over a mixed Ni/MgAl + CrFe<inf>3</inf>O<inf>4</inf> catalyst. The catalyst was prepared by physical mixing method and it was compared to Ni/MgAl and iron or chromium promoted M/Ni/MgAl catalysts prepared by impregnation method. Catalysts were characterized by various analytical techniques such as nitrogen physisorption, TPR, XRD, TGA and SEM. The catalytic activity in a fixed-bed reactor was investigated at a temperature range of 500-700 °C, 1 bar pressure and feed molar ratio of H<inf>2</inf>O/CH<inf>4</inf> = 2. TPR and XRD illustrated that segregated Ni particles were observed with promoted M-Ni/MgAl catalysts and it leads to reduce the active Ni metal. The addition of the Cr/Fe<inf>3</inf>O<inf>4</inf> catalyst activates steam and easily reacts with methane. Consequently, physically mixed catalysts showed higher hydrogen selectivity and methane conversion than the other catalysts.

Original languageEnglish
Pages (from-to)11848-11854
Number of pages7
JournalInternational Journal of Hydrogen Energy
Volume40
Issue number35
DOIs
Publication statusPublished - 2015 Sep 21

Keywords

  • Hydrogen production
  • Physically mixed catalyst
  • Steam reforming
  • WGS reaction

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

Fingerprint Dive into the research topics of 'Hydrogen production by steam reforming of methane over mixed Ni/MgAl + CrFe<inf>3</inf>O<inf>4</inf> catalysts'. Together they form a unique fingerprint.

  • Cite this