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Item type:Publication, Access status: with files , Pimp my distillation sequence - shortcut-based screening of intensified configurationsDistillation processes account for a substantial share of the industrial energy demand. Yet, these energy requirements can be reduced by a variety of energy integration methods, including various forms of direct heat integration, multi-effect distillation, thermal coupling and vapor recompression. Consequently, these intensification methods should be evaluated quantitatively in comparison to each other for individual separation tasks, instead of benchmarking single options with conventional sequences or relying on simplified heuristics. In order to overcome the computational burden of a broad assessment of a large number of process alternatives, a computationally-efficient framework for the energetic and economic evaluation of such energy integrated distillation processes is presented, which builds on thermodynamically-sound shortcut models that do not rely on constant relative volatility and constant molar overflow assumptions.Publicationtype: Journal Article33 19 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: with files , Can simple side stream configurations compete with fully thermally coupled dividing wall columns?It is well known that thermal coupling of distillation columns can substantially decrease the energy requirements of distillation processes, which is confirmed by several hundred industrial implementations of dividing wall columns. However, the respective vapor splits have to be properly designed and require consistent hydrodynamics in the adjacent column sections. These limitations can be overcome by transformation of the thermal coupling to a side stream configuration, which adds a degree of freedom for operation of the process and allows the columns to be operated at different pressures. The current study investigates energy requirements and operating costs of single side stream configurations thermodynamically equivalent to side-rectifier and side-stripper columns in comparison to fully thermally coupled dividing wall columns and heat-integrated configurations. While side-stream configurations provide an interesting retrofit option and are competitive to fully-coupled dividing wall columns for certain ranges of feed compositions, they can outperform them significantly exploiting additional heat integration.Publicationtype: Conference Paper217 284 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , Analyse des Potentials thermisch gekoppelter Rektifikationskolonnen ohne Dampfaustausch(2021-11); ; Publicationtype: Conference Presentation75