A batch reactor study of the effect of deasphalting on hydrotreating of heavy oil

Vicente Sámano, Fania Guerrero, Jorge Ancheyta, Fernando Trejo, José A.I. Díaz

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

The effect of deasphalting of heavy oil with different degrees of asphaltenes precipitation on catalytic hydrotreating is reported in this work. Deasphalted oils were obtained in a pressurized vessel using n-heptane and n-pentane as solvents. Various samples with different amounts of asphaltenes were prepared by varying precipitation conditions. Hydrotreating of deasphalted oils was conducted with a commercial NiMo catalyst in a batch reactor at the following reaction conditions: hydrogen pressure of 100 kg/cm2, temperature of 400 °C, stirring rate of 750 rpm and reaction time of 4 h. The heavy oil, the deasphalted oils and the hydrotreated products were characterized by sulfur, metals (Ni, V), asphaltene contents, and API gravity. Metals and carbon contents as well as textural properties and X-ray diffraction were also determined on fresh, spent and regenerated catalysts.

Original languageEnglish
Pages (from-to)264-271
Number of pages8
JournalCatalysis Today
Volume150
Issue number3-4
DOIs
StatePublished - 30 Mar 2010
Externally publishedYes

Keywords

  • Asphaltene
  • Deasphalting
  • Heavy oil
  • Hydrotreating
  • Spent catalysts

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