Oxidizing device for producing aromatic carboxylic acid
An oxidation device, aromatic carboxylic acid technology, applied in carboxylate preparation, organic chemistry, chemical instruments and methods, etc., can solve the problem of reducing liquid foam entrainment, high superficial gas velocity, large gas treatment capacity and solvent evaporation, etc. problem, to achieve the effects of simple structure of the tray, increase of plate efficiency, and increase of gas-liquid contact efficiency
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[0024] The reaction section adopts a bubble column, and the gas separation section adopts multi-layer large-aperture sieve plates. Due to the large gas-liquid flow rate of the several layers of trays located in the lower part of the separation section, the plate spacing and opening ratio are 500mm and 15% respectively; The gas-liquid flow rate of several layers of trays located in the upper part of the separation section is small, so the plate spacing and opening ratio are reduced, which are 450mm and 11% respectively. The reaction conditions are listed in Table 1, the structural parameters of the reactor are listed in Table 2, the output indicators of the liquid phase of the reaction section are listed in Table 3, and the output indicators of the gas separation section are listed in Table 4.
[0025] PX processing capacity
(ton / hour)
reaction pressure
Mpa (absolute pressure)
temperature reflex
℃
Catalyst concentration ppm
dwell time
...
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