Hydrocarbon synthesis reactor employing vertical downcomer with

Details Hydrocarbon synthesis reactor employing vertical downcomer with Hydrocarbon synthesis reactor employing vertical downcomer with

1992-12-18

1995-01-17

Pal, Asok

Chemistry of hydrocarbon compounds

Miscellaneous process, e.g., indeterminate modification of a...

585922, 585924, 502 34, 422219, C07C 720, B01J 2034, B01J 908

Patent

active

053827481

ABSTRACT:
The operation of a hydrocarbon synthesis reactor and catalyst distributed in the reaction slurry therein are improved by the presence in said reactor of one or more vertical downcomers open at both ends with gas disengaging areas located at their top end. The downcomer which circulates catalyst from the top of the reaction slurry to the bottom of said slurry is fully immersed in the reaction slurry and preferably extends from just above the bottom of the reaction zone of the reaction vessel to just below the top surface of the reaction slurry. The bottom end of said downcomer is shielded from intrusion of rising synthesis gas by the placement of a baffle which blocks rising gas entry but facilitates the exit of catalyst and liquid from the bottom of said downcomer and distributes them radially throughout the adjacent reactor slurry.

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