Beschreibung:
<jats:title>Abstract</jats:title><jats:p>In distillation, additive manufacturing can facilitate the design and fabrication of laboratory‐scale packed columns that overcome the existing miniaturization limits while maintaining scalability. Liquid distribution is one of the appraisal criteria for new packing structures. For this purpose, a flexible 3D‐printed laboratory test rig is presented. The setup offers a wide liquid load operation range from approx. 2.5 to 20 m<jats:sup>3</jats:sup>m<jats:sup>−2</jats:sup>h<jats:sup>−1</jats:sup> for column diameters of 20–50 mm. First results regarding steady‐state development, initial liquid distribution effect and liquid load variation are shown using a 3D‐printed version of the Rombopak 9M in a 20‐mm diameter column.</jats:p>