Catalytic removal of sulfur dioxide from dibenzothiophene sulfone over Mg-Al mixed oxides supported on mesoporous silica

Nansuk You, Min Ji Kim, Kwang Eun Jeong, Soon Yong Jeong, Young Kwon Park, Jong Ki Jeon

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

Dibenzothiophene sulfone (DBTS), one of the products of the oxidative desulfurization of heavy oil, can be removed through extraction as well as by an adsorption process. It is necessary to utilize DBTS in conjunction with catalytic cracking. An object of the present study is to provide an Mg-Al-mesoporous silica catalyst for the removal of sulfur dioxide from DBTS. The characteristics of the Mg-Al-mesoporous silica catalyst were investigated through N 2 adsorption, XRD, ICP, and XRF. An Mg-Al-mesoporous silica catalyst formulated in a direct incorporation method showed higher catalytic performance compared to pure MgO during the catalytic removal of sulfur dioxide from DBTS. The higher dispersion of Mg as well as the large surface area of the Mg-Al-mesoporous silica catalyst strongly influenced the catalyst basicity in DBTS cracking.

Original languageEnglish
Pages (from-to)3663-3666
Number of pages4
JournalJournal of Nanoscience and Nanotechnology
Volume10
Issue number5
DOIs
StatePublished - May 2010

Keywords

  • Dibenzothiophene sulfone
  • Mg-Al-Mesoporous silica
  • Solid base catalyst

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