Oxidative desulfurization of model compounds and crude oil using Mo/Ti-DMSN catalyst and a detailed molecular characterization of sulfur species

Jiyuan Fan, Aiping Chen, Saumitra Saxena, Haidong Li, Pedro Castaño, Wen Zhang, William L. Roberts

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

We prove here that Mo supported on Ti-modified dendritic mesoporous silica nanoparticles (DMSN) is an excellent catalyst for the oxidative desulfurization of model compounds and real crude oils. The catalyst was synthesized; characterized; tested in the removal of benzothiophene, dibenzothiophene, and 4,6-dimethyl dibenzothiophene; and re-tested in the sulfur removal from Arabian extra light crude oil under the optimized conditions. The can remove 92.5–99.5% of the most refractory compounds in the optimized conditions of 80 °C. For the Arabian Extra light crude oil (AXL), we employed Fourier-transform ion cyclotron resonance (FT-ICR) to analyze in detail the sulfur-containing compounds in the feedstock, oxidized product, and extraction phase. The sulfoxide species with low double bond equivalent (DBE) can be removed entirely after the stage 1 extraction.
Original languageEnglish (US)
JournalCatalysis Today
DOIs
StatePublished - May 11 2022

ASJC Scopus subject areas

  • General Chemistry
  • Catalysis

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