Modeling the deactivation by metal deposition of heavy oil hydrotreating catalyst

Ignacio Elizalde, Jorge Ancheyta

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

Modeling the deactivation of heavy oil hydrotreating catalyst was carried out by using a pore plugging model. Experimental data were obtained at constant temperature of 385 C, pressure of 9.8 MPa, LHSV of 0.25 h and 5000 scf H 2/bbl oil. Kinetics was derived from experimental data collected at short times-on-stream (TOS) whereas data affected by pore plugging by metal deposition was obtained between 200 and 2200 h TOS. The model employed was capable of predicting with confidence the profiles of diminution of metal removal (nickel and vanadium) at short and long values of time-on-stream.

Original languageEnglish
Pages (from-to)221-227
Number of pages7
JournalCatalysis Today
Volume220-222
DOIs
StatePublished - Mar 2014
Externally publishedYes

Keywords

  • Deactivation
  • Heavy oil
  • Pore plugging

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