SO2 abatement over nanocrystalline MgAl2O4 spinel-supported catalysts

Rui Feng, Hamind A. Al-Megren, Mohammed C. Al-Kinany, Mark J. Rood, Zifeng Yan

Research output: Contribution to journalArticle

Abstract

Thermally stable magnesium-rich MgAl2O4 spinel with mesoporous nanostructures and high surface area has been prepared by co-precipitation and post hydrothermal treatment, using glucose as organic template. Physical and chemical properties were characterized by XRD, N 2 sorption, TG, FTIR, SEM, and TEM. The synthesized MgAl 2O4 showed a surface area of 324 m2 g -1 and centralized mesopore distribution (ca. 3.3 nm pore width) after calcination at 700 C for 3 h. The prepared MgAl2O4 were impregnated with metal oxides as sulfur transfer catalysts for high-temperature SO2 adsorption reaction. The results showed that ferric doped MgAl2O4 had the highest SO2 pick-up capacity up to 58 % and best regeneration up to 81 %. These results showed that thermally stable nanostructured MgAl2O4 are a promising candidate as catalyst for desulfurization in fluid catalytic cracking process.

Original languageEnglish (US)
Pages (from-to)571-577
Number of pages7
JournalJournal of Porous Materials
Volume20
Issue number3
DOIs
StatePublished - Jun 1 2013

Keywords

  • Desulfurization
  • Fluid catalytic cracking
  • Mesoporous
  • MgAlO spinel
  • Nanostructure

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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    Feng, R., Al-Megren, H. A., Al-Kinany, M. C., Rood, M. J., & Yan, Z. (2013). SO2 abatement over nanocrystalline MgAl2O4 spinel-supported catalysts. Journal of Porous Materials, 20(3), 571-577. https://doi.org/10.1007/s10934-012-9639-1