RENOVATION OF WATER SOLUTION FORMED DURING ACID GASES ABSORPTION BY MULTISTAGE EQUILIBRIUM EVAPORATION AND DISTILLATION Russian patent published in 2009 - IPC B01D53/14 B01D53/18 

Abstract RU 2358792 C2

FIELD: chemistry.

SUBSTANCE: invention can be used at removal of the acid gases such as carbon dioxide and hydrogen sulphide from the gas flow containing acid gases by the absorption in water solutions and distillation. The device for acid gases distillation from the gas flow includes the stripping column for implementation of the repeated equilibrium evaporation stages including the first stage where the solvent flow; at least one compressor on the flow of every equilibrium evaporation stages (except for the first one) providing the compression of the vapour formed and every equilibrium evaporation stage and its inflow to the previous stage at higher pressure; heat exchanger for additional heat admission to the evaporation stage working at the least pressure. The method of the acid gases removal from the gas flow containing the acid gases is claimed.

EFFECT: invention allows decreasing of the working temperature of the distillation device and reducing of the system energy consumption.

15 cl, 4 dwg, 1 tbl, 2 ex

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RU 2 358 792 C2

Authors

Roshell' Gari

Dates

2009-06-20Published

2004-03-04Filed