PROCESS FOR DEACIDIFICATION OF A GAS BY MEANS OF AN ABSORBENT SOLUTION WITH FRACTIONATED REGENERATION BY HEATING

摘要

The invention relates to a process for deacidification of a gaseous effluent comprising acidic compounds. The gaseous effluent is brought into contact, in C1, with an absorbent solution so as to obtain a gaseous effluent depleted of acidic compounds and an absorbent solution loaded with acidic compounds, the absorbent solution being chosen for its property of forming two separatable phases when it has absorbed a quantity of acidic compounds and when it is heated. The absorbent solution loaded with acidic compounds is then heated, in E1 and E3, so as to separate two fractions: a first fraction of absorbent solution depleted of acidic compounds and a second fraction of absorbent solution enriched in acidic compounds. These two fractions are then separated in BS1. The second fraction is regenerated in G2 so as to release part of the acidic compounds, and the first fraction of absorbent solution and the regenerated absorbent solution are recycled as absorbent solution.