Process for the "in-situ" fluorination of a catalyst

Details Process for the "in-situ" fluorination of a catalyst Process for the "in-situ" fluorination of a catalyst

B - Operations, Transporting

01

J

252/52.D, 260/67

B01J 37/26 (2006.01)

Patent

CA 1137062

A B S T R A C T Rapid in situ fluoridation at elevated temperature and pressure of hydrotreating catalysts with gaseous organic fluorine compounds, e.g., difluoroethane is disclosed. The fluorine com- pound is injected all at once in a gas preferably hydrogen, which is recycled through the hydrotreating plant. The gas is recycled until analyses on concentrations of a decomposition product of the injected fluorine compound, e.g., ethane, in the recycling gas indicates that the desired amount of fluorine has been incor- porated on the catalyst. This process provides an even distribu- tion of the fluorine on the catalyst, and permits the use of rela- tively low temperatures.

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