Under the Adsorbent subtab you can define all settings regarding the material that adsorbs the solute species.

Select the Material ID of your Adsorbent. You can only select porous solids as adsorbent and only one adsorbent material can be selected.

An Initial Sorbent Loading s0 in mol/kg can be defined in one of two ways. An Initial Field can be loaded by selecting the checkbox and clicking Browse. Through this option, an initial distribution of the solute adsorbed to the adsorbent can be defined. For each time batch, AddiDict automatically generates a ConcentrationLoadingXXX.hht file. This file contains two volume fields: the Concentration and the Loading. Here the Loading, i.e., the distribution of the solute adsorbed to the adsorbent, in the structure is used as input. Therefore, the output of a previous adsorption simulation can easily serve as the input for subsequent runs. Alternatively, *.hht files can be manipulated with Python scripting.

Alternatively a Constant Value for the Initial Sorbent Loading of the solute in the structure can be defined.

If none of these options is selected the Initial Sorbent Loading is s0 = 0 mol/m3.