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Catalysis in Industry

, Volume 9, Issue 2, pp 136–145 | Cite as

Reactivation of an industrial batch of CoMo/Al2O3 catalyst for the deep hydrotreatment of oil fractions

  • S. V. Budukva
  • O. V. Klimov
  • A. S. Noskov
  • V. A. Golovachev
  • D. O. Kondrashev
  • A. V. Kleimenov
  • R. V. Esipenko
  • A. P. Kubarev
  • D. V. Khrapov
Catalysis in Petroleum Refining Industry
  • 33 Downloads

Abstract

The results from industrial tests of technology developed earlier for the reactivation of CoMo/Al2O3 catalyst for the deep hydrotreating of diesel fuel, including the oxidative regeneration of the catalyst with subsequent treatment using organic complexing agents, are presented. Samples of the catalyst, fresh and at different stages of its reactivation, are investigated using a set of analytical and physicochemical methods. The chemical composition, textural characteristics, mechanical strength, structure of the active sulfide component (TEM, XPS) are determined. Catalytic tests are performed that include lifetime tests (360 h) in the hydrotreatment of a straight-run diesel fraction. The restoration of the physicochemical and catalytic properties is observed for a sample subjected to oxidative regeneration with subsequent treatment using organic complexing agents. An industrial batch of deep hydrotreatment catalyst reactivated by this technology is loaded into an L-24-6 industrial plant facility and ensures stable purification of straight-run diesel fuel containing up to 10% of light catalytic cracking gas oil to a residual sulfur content of less than 10 ppm. Comparison of the obtained results and data on the industrial operation of fresh catalysts shows that the technology developed by the Institute of Catalysis and PAO Gazprom Neft ensures almost complete restoration of the properties of the deactivated catalysts.

Keywords

hydrotreatment regeneration reactivation organic complex agents catalysts diesel fuel 

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Copyright information

© Pleiades Publishing, Ltd. 2017

Authors and Affiliations

  • S. V. Budukva
    • 1
  • O. V. Klimov
    • 1
  • A. S. Noskov
    • 1
  • V. A. Golovachev
    • 2
  • D. O. Kondrashev
    • 2
  • A. V. Kleimenov
    • 2
  • R. V. Esipenko
    • 3
  • A. P. Kubarev
    • 3
  • D. V. Khrapov
    • 3
  1. 1.Boreskov Institute of Catalysis, Siberian BranchRussian Academy of SciencesNovosibirskRussia
  2. 2.PAO Gazprom NeftSt. PetersburgRussia
  3. 3.AO Gazprom Neft-Omsk RefineryOmskRussia

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