Rigorose Modellierung und Simulation von Chemisorptionsprozessen

Abstract

Unter Chemisorptionsprozessen, die zu den wichtigsten Verfahren in der chemischen Industrie gehören, versteht man die Ab-und

Complementary modelling of fluid separation processes

“…Kenig and Górak, 2005). Therefore, we believe that the modelling of a fully integrated absorption/desorption loop by the RBA in Hüpen and Kenig (2005) is a remarkable achievement.…”

“…Regarding the large computational effort and convergence problems typical for these tasks, this is worth mentioning. One of such highly integrated processes is a closed reactive absorption/desorption loop presented in Hüpen and Kenig (2005). In this work, an industrial process was considered in which aqueous methyldiethanolamine solution was used for a selective removal of H 2 S in presence of CO 2 (reactive absorbtion) with a subsequent solvent regeneration (reactive desorption).…”

“…In this work, an industrial process was considered in which aqueous methyldiethanolamine solution was used for a selective removal of H 2 S in presence of CO 2 (reactive absorbtion) with a subsequent solvent regeneration (reactive desorption). In Hüpen and Kenig (2005), both absorber and desorber performance were validated (see Fig. 12).…”

Untersuchung des dynamischen Prozessverhaltens bei Betriebsstörungen im Bereich der chemischen Absorption

“… zur Entwicklung eines Modells für die stationäre Simulation der chemischen Absorption von CO 2 mit MEA verwendet und validiert. Hüpen und Kenig erweiterten dieses Modell um die Desorption für einen Kreislaufprozess, und in der Arbeit von Hüser et. al.…”

Standardization of Mass Transfer Measurements

“…To allow for a selective removal of individual components and increase the capacity of the absorbent, the physical process is often accompanied by chemical reaction, resulting in complex mass transfer phenomena that have to be considered in process design. Extensive scientific work has been done to develop suitable models for absorption processes, leading to state-of-the-art tools that consider the enhancement of multi-component mass transfer by reaction in both phases as well as the complex thermodynamic behaviour of electrolyte systems [1]. But even this complexity can only lead to a column design that is as precise as the accuracy of the model parameters.…”