METHOD OF PURIFYING GAS FROM ACID COMPONENTS AND INSTALLATION FOR REALISING SAID METHOD Russian patent published in 2010 - IPC B01D53/14 

FIELD: chemistry.

SUBSTANCE: invention can be used in gas, petrochemical and other industries. The method involves absorption of acid gases fed into an absorber 1 for wetting with an aqueous absorbent solution based on amines with subsequent regeneration of saturated absorbent 7 in a desorber 6. The bottom part of the desorber 6 is heated using a heat exchanger-evaporator 11. Regenerated absorbent solution 14 is tapped from the bottom part of the desorber 6 and taken for spraying the desorber 1. The stream of acid gas with water vapour 16 is released from the top part of the desorber 6, cooled in cooling apparatus 17 and split into acid gases and acid water in container 18. The acid water is fed into section 5 of the absorber 1 for blowing unpurified gas 2, and water 23 tapped from the bottom of the absorber and purified from acid components is mixed with regenerated absorbent solution 14 in container 9 to obtain aqueous absorbent solution of the required concentration.

EFFECT: higher degree of purity of gases from acid components.

12 cl, 1 dwg