*2.1.1 Absorption column profile*

We see that the temperature gradually increases, starting from the 2nd stage to the 9th stage, and then decreases to the 10th stage. This can be explained by the fact that as the gas goes up to meet the glycol, and heat transfer becomes more and more important; and this allows the glycol to absorb more water from the gas before saturation. At stage 10, when the glycol loses its ability to absorb water the temperature drops.

As shown, the pressure increases when moving up the stage, this is because the absorption phenomenon occurs at high pressure, in contrast to the regeneration phenomenon.


#### • Temperature dew point

**Table 3.** *Profile of the absorption column.*
