Method for treating dewaxing catalysts Patent #: 4892646
ApplicationNo. 949934 filed on 09/24/1992
US Classes:502/30, And gas addition thereto502/31, Hydrocarbon502/53, Elemental hydrogen518/700LIQUID PHASE FISCHER-TROPSCH REACTION
ExaminersPrimary: Konopka, P. E.
Attorney, Agent or Firm
International ClassesB01J 020/20
AbstractA cobalt- or ruthenium-containing hydrocarbon synthesis catalyst, subjected to short term, reversible, partial deactivation in a slurry synthesis process can be rejuvenated, i.e., at least about 80+% catalyst activity recovery, by treating the catalyst in the presence of liquid hydrocarbons, preferably the slurry hydrocarbons, with hydrogen at elevated temperatures and pressures.