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

Bibliographical note

KAUST Repository Item: Exported on 2022-05-31
Acknowledgements: The work was sponsored by the Clean Combustion Research Center at King Abdullah University of Science and Technology (KAUST). The author thanks the Arabian extra light crude oil supported by Saudi Aramco.

ASJC Scopus subject areas

  • General Chemistry
  • Catalysis

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