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Record 1 2004-08-04


Subject field(s)
  • Oil Refining

Within the hydrotreater units the hydrocarbon vapours react with the hydrogen at high pressure and high temperatures in the presence of a catalyst.


Heavy oils recovered at the base of the fractionating column can be returned to the reaction zone, used as supplementary fuel, sent to a hydrotreatment unit or sold as fuel.

Key term(s)
  • hydro-treatment unit


  • Raffinage du pétrole

Dans les unités d'hydrotraitement, elles [les vapeurs d'hydrocarbures] sont mises en réaction avec de l'hydrogène sous haute température et forte pression en présence d'un catalyseur


Les huiles lourdes récupérées à la base de la colonne de fractionnement peuvent être retournées à la zone de pyrolyse, utilisées comme combustible d'appoint, acheminées vers une unité d'hydro-traitement ou encore être vendues comme combustible.


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