The Lummus Company

Lummus Crest, Inc.

George Friedman

John V Albano

Harold B Kohn

Processes for carrying out catalytic exothermic and endothermic high-pressure gas reactions with a single-walled pressure vessel or shell containing cross-flow (e.g., radial flow) heat transfer exchangers, a continuous catalytic bed having at least two stages, and means for effecting 'cross-over' material flows from 'outside' to 'inside' (for exothermic reactions) and vice versa (for endothermic reactions), whereby conditions of: maximum gas temperature always being in the core of said vessel or shell, minimal pressure drop, and minimal compression of catalyst particles are achieved, along with significant economic savings in cost of the pressure vessel or shell and catalyst (through extension of catalyst life).

Processes for carrying out catalytic endothermic high-pressure gas

Processes for carrying out catalytic exothermic and endothermic

Apparatus for carrying out catalytic exothermic and endothermic high-pressure gas reactions, comprising a single-walled pressure vessel or shell containing cross-flow (e.g., radial flow) heat transfer exchangers, a continuous catalytic bed having at least two stages, and means for effecting 'cross-over' material flows from 'outside' to 'inside' (for exothermic reactions) and vice versa (for endothermic reactions), whereby conditions of: maximum gas temperature always being in the core of the apparatus, minimal pressure drop, and minimal compression of catalyst particles are achieved, along with significant economic savings in cost of the apparatus and catalyst (through extension of catalyst life).

Apparatus for carrying out catalytic exothermic and endothermic

Gas feed system for a packed bed in which there is provided a plenum chamber within the packed bed comprised of a plurality of separate members supported by the packing, with gas being introduced into the plenum chamber and fed downwardly through the packing and then upwardly through a distributor to packing above the plenum chamber. A liquid feed system includes a main liquid distributor, auxiliary liquid distributors and associated conduits, all positioned within and supported by the packed bed.

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Clark, NJ, United States of America

George Friedman