Flexible distillation test rig on a laboratory scale for
characterization of additively manufactured packings
Abstract
Additive manufacturing is increasingly being used to develop innovative
packings for absorption and desorption columns. Since distillation has
not been in focus so far, this paper aims to fill this gap. The
objective is to obtain a miniaturized 3D printed packed column with
optimized properties in terms of scalability and reproducibility, which
increases process development efficiency. For this purpose, a flexible
laboratory scale test rig is presented combining standard laboratory
equipment with 3D printed components such as innovative multifunctional
trays or the column wall with packing. The test rig offers a
particularly wide operating range (F=0.15
Pa0.5…1.0 Pa0.5) for column
diameters between 20 mm and 50 mm. First results regarding the time to
reach steady-state, operational stability and separation efficiency
measurements are presented using a 3D printable version of the Rombopak
9M. Currently, innovative packings are being characterized, which should
exhibit a optimized bevavior regarding scalability, reproducibility and
separation efficiency.