Method of conducting reactions in a trickle-type reactor

Details Method of conducting reactions in a trickle-type reactor Method of conducting reactions in a trickle-type reactor

1975-01-30

1981-07-28

Evans, Joseph E.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568895, 568896, 568880, 568899, C07C 4545, C07C 2904

Patent

active

042812062

ABSTRACT:
Trickle-type fixed-bed catalytic reactions are improved, prior to starting or resuming an on-stream period, by purging air from the catalyst bed and reaction zone by downward flow of an inert gas therethrough, flooding the purged reaction zone by flowing a liquid upwardly through the catalyst bed to cover same, then removing the liquid and instituting the on-stream period by introducing gaseous and liquid reactants at the upper end of the catalyst bed to flow downwardly therethrough.

REFERENCES:
patent: 3574763 (1971-04-01), Wollner et al.
patent: 3591522 (1971-07-01), Cosyns et al.
patent: 3720626 (1973-03-01), Benzaria et al.
Satterfield, AIChE J., vol 21 (2), pp. 209-228 (1975).
Hanika et al., Collection Czech. Chem. Comm. (vol. 39) pp. 210-215 (1974).

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