An approach to the deep hydrodesulfurization of light cycle oil

Ki Hyouk Choi, Yosuke Sano, Yozo Korai, Isao Mochida

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

Deep HDS of LCO to be <10 ppm was achieved by fractionating HDS. An LCO fraction having boiling point lower than 340°C was easily hydrodesulfurized to be <10 ppmS under conventional HDS conditions because the hydrodesulfurization of the reactive sulfur species contained in the fraction was hardly inhibited by the aromatic compounds. In contrast, the heavier fraction was very hard to be hydrodesulfurized since its refractory sulfur species were strongly inhibited by large content of aromatic components. Dilution of the heavier fraction with common solvents showed higher reactivity over NiMo/Al2O3 catalyst than itself alone. Decalin, which showed the highest dilution effect, was believed to strip the strongly adsorbed aromatics off from the catalyst surface.

Original languageEnglish
Pages (from-to)275-283
Number of pages9
JournalApplied Catalysis B: Environmental
Volume53
Issue number4
DOIs
Publication statusPublished - Nov 18 2004

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Environmental Science(all)
  • Process Chemistry and Technology

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