Process for stabilizing the performances of a catalyst for...

Details Process for stabilizing the performances of a catalyst for... Process for stabilizing the performances of a catalyst for...

2011-06-28

2011-06-28

Parsa, Jafar (Department: 1621)

Chemistry: fischer-tropsch processes; or purification or recover

Liquid phase fischer-tropsch reaction

C518S728000

Reexamination Certificate

active

07968610

ABSTRACT:
Process for maintaining the stability of performances of a catalyst for Fischer-Tropsch reaction, performed in a slurry bubble column reactor under a triphase system which comprises gradually increasing the PH2O/PH2ratio and the PH2O/Z ratio, during the start-up phase, with Z=P0·(T/T1)4·e−(K2/(t·K3))from 0.4 to 0.8, for a period of time not shorter than 100-150 hrs and not longer than 200-300 hours and, at the end of the start-up phase, maintaining the PH2O/PH2and PH2O/Z ratios substantially equal to or lower than 0.8.

REFERENCES:
patent: 2011/0009502 (2011-01-01), Marion et al.
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