Gas Absorption Falling Film Reactor

Abstract

The invention provides a gas absorption falling film reactor, which comprises a jacket, a wet wall column, a liquid distribution mechanism, an upper fixing mechanism, a lower fixing mechanism, a gas distribution mechanism and a sealing mechanism. The jacket has an inner wall, an outer wall, an accommodating cavity formed by the inner wall and a first cavity formed by the outer wall around the middle of the inner wall, and the first cavity is provided with a heat transfer medium inlet and a heat transfer medium outlet; the wetted pilaster has a wall and a wall surrounded by the wall The hollow part; the liquid distribution mechanism includes a spiral distributor and a top cap; the upper fixing mechanism has an air outlet that communicates with the accommodating cavity of the jacket; the lower fixing mechanism has a first opening that allows the wet wall column to pass through; the gas distribution mechanism includes a lower The cover, the annular cavity and the gas-liquid separation plate, the lower cover has a side wall and a bottom wall, the side wall is provided with a plurality of inner air inlets, the bottom wall is provided with a second opening and a liquid discharge port; the annular cavity is provided with an external The outer air intake hole communicated with the pressurized gas; the sealing mechanism has a second opening through which the wet wall column passes and is fixedly connected to the lower cover.

Description

technical field [0001] The invention relates to gas capture equipment, in particular to a gas absorption falling film reactor. Background technique [0002] Gas absorption can be divided into two categories: physical absorption and chemical absorption according to its properties. It is a typical chemical unit operation to treat a gas mixture with an appropriate absorbent to remove one or more components. Gas absorption technology has been widely used in the fields of synthetic ammonia, petrochemical industry and waste gas treatment, etc. The absorption phase is mainly gas-liquid absorption. The gas-liquid absorption process may be simple or complex, but the most important and core equipment used in it is the gas-liquid absorption reactor. [0003] Gas-liquid phase reactors can be divided into: [0004] (1) Bubble column reactors, stirred bubble tank reactors and plate reactors in which gas is dispersed in the liquid phase in the form of bubbles; [0005] (2) Spray reactor...

AI Technical Summary

Problems solved by technology

The current generally used porous gas distributor has an uneven flow rate, and the axial velocity of the gas near the inlet is too high. Under the suction of the high-speed air flow, a recirculation zone is formed near the inlet, resulting in uneven gas distribution.

Images