| 摘要 |
<p>Process for purifying a gas mixture containing acid gases, such as a natural gas, comprising a step of bringing said gas mixture into contact with an absorbent solution comprising, preferably consisting of: - from 35% to 45% by weight, relative to the total weight of the absorbent solution, of at least one tertiary amine; - from 4% to 12% by weight, relative to the total weight of the absorbent solution, of at least one activator chosen from primary amines and secondary amines; the total content of tertiary amine and of activator being from 38% to 50% by weight relative to the total weight of the absorbent solution, and the total concentration of tertiary amine and of activator being between 3.8 and 4.2 mol/l; - from 17% to 25% by weight, relative to the total weight of the absorbent solution, of at least one C2 to C4 thioalkanol; the rest being water so as to reach 100% by weight. An absorbent solution for implementing this process.</p> |
