Pinch-based shortcut method for the conceptual design of adiabatic absorption columns
| Autor: | Wolfgang Marquardt, Christian Redepenning |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Absorption (acoustics)
Mathematical optimization Environmental Engineering Pinch point General Chemical Engineering Process design 02 engineering and technology 021001 nanoscience & nanotechnology 020401 chemical engineering Conceptual design Pinch Performance indicator 0204 chemical engineering 0210 nano-technology Adiabatic process Early phase Simulation Biotechnology |
| Zdroj: | AIChE Journal. 63:1213-1225 |
| ISSN: | 0001-1541 |
| DOI: | 10.1002/aic.15499 |
| Popis: | Shortcut methods are valuable tools for the fast evaluation of key performance indicators in the early phase of conceptual process design. For the design of absorption columns, operation at minimum solvent demand represents a thermodynamically sound indicator, which is, however, difficult to determine because an infinite number of separation stages need to be considered. Instead, the suggested shortcut model exploits the existence of the pinch point to identify operation at minimum solvent demand. Existing shortcut concepts, such as the well-known equation of Kremser\,(1930), are significantly outperformed by the novel shortcut model, which can be gradually refined to any desired accuracy. Integration into a stepwise procedure results in reliable solutions. The model covers rigorous thermodynamics; no simplifications regarding phase equilibrium, heat effects, or number of components are required. The performance of the method is illustrated by several case studies with up to seven components. This article is protected by copyright. All rights reserved. |
| Databáze: | OpenAIRE |
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