wet wall tower

Abstract

The invention provides a wetted wall tower. The wetted wall tower comprises a jacket, a wetted wall column, a liquid distributor, an upper flange, a lower flange and a gas distribution baffle, wherein the jacket is provided with an accommodating cavity; the wetted wall column is provided with a wall part and a hollow part; the upper flange is provided with a gas outlet; the lower flange is provided with a gas inlet, an annular groove and a liquid exhaust opening; the liquid distributor comprises an overflow body with overflow holes and a cap element which forms a liquid receiving cavity and a clearance; en external solution passes through a hollow part of the wetted wall column, the cavity of the overflow body, the liquid receiving cavity and the clearance and flows from top to bottom along the outer surface of the wall part of the wetted wall column so as to form a liquid membrane; an external gas enters from a gas inlet, and the flow direction of the external gas is adjusted by the gas distribution baffle, and the external gas is guided to the accommodating cavity of the jacket so as to be in contact with the liquid membrane in a counterflow mode, so that the gas is absorbed by the solution; the solution flowing from top to bottom along the outer surface of the wall part of the wetted wall column absorbs the gas, and then the gas is accumulated to the annular groove, and is exhausted out via the liquid exhaust opening as a waste liquid; the upward flowing gas containing the absorbed solution acts as exhausted gas, and is exhausted outward via the gas outlet.

Description

technical field [0001] The present invention relates generally to gas capture equipment, and more particularly to a wetted wall column. Background technique [0002] "Twelfth Five-Year" national science and technology support plan project "large-scale coal-fired power plant flue gas CO 2 Capture, flooding and storage technology (CCUS) development and application demonstration", capturing CO in power plant flue gas 2 Resources are supplied to oil fields for tertiary oil recovery. The purpose is to achieve CO 2 The dual goals of emission reduction and oilfield EOR flooding to stabilize production and increase income. In this context, the development of flue gas CO 2 Capture new technology and kinetic mass transfer characteristics research, guide large-scale carbon capture engineering process package design and engineering design, is beneficial to CO 2 The promotion of new technologies for emission reduction is of great significance to both ecological environmental protect...

AI Technical Summary

Problems solved by technology

Porous gas distributors are commonly used at present, but 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