COUNTERCURRENT SEGMENTED GAS-LIFT REACTOR FOR GAS-LIQUID PROCESSES Russian patent published in 2006 - IPC B01J10/00 B01J19/24 

FIELD: chemical industry; heat engineering; apparatuses for realization of the gas liquid chemical processes and heat-exchange and mass-exchange processes.

SUBSTANCE: the invention is pertaining to the apparatuses for realization of the gas liquid chemical processes and heat-exchange and mass-exchange processes with a great release or absorption of heat, in particular, the processes of liquid-phase oxidation of alkyl aromatic monocarboxylic and polycarboxylic acids. The invention presents the reactor consisting of the vertical cylindrical body partitioned in height by horizontal planar septums with holes into sections containing the bundles of the barbotage and circulation pipes fixed on the pipe plates, the fitting pipes for the reactants and heat-carrying agent feeding in and withdrawal. Between the sections there are the separating devices made in the form of the reflective funnels with holes in the center, in internal cavities of which there are the dipped barbotage cylinders and the circulation fitting pipes fixed on the horizontal septums in such a manner that the barbotage cylinders are mounted in the center are established, and the circulation fitting pipes are placed in symmetry outside the barbotage cylinders. At that the bottom parts of the barbotage cylinders located under the horizontal septums have a perforation in the form of slits or holes, and upper parts of the barbotage cylinders located above the horizontal septums are supplied with the heads made in the form of bundles of upright tubes, pellets or perforated plates creating in them resistance to the up-going gaseous current. The invention allows to increase productivity of the reactor by decreasing dispersion of duration of liquid reactants presence in the segmented reaction zone, as well as to raise the hydrodynamic efficiency and stability of the reactor operation due to organization of the discrete gas separation from the gas-saturated liquid in conditions of the countercurrent motion of the gas and the liquid in height of the reactionary volume.

EFFECT: the invention ensures an increase of productivity of the reactor, its hydrodynamic efficiency and stability of operation.

3 cl, 6 dwg, 1 tbl