Rigorous design of multiphase reactors: Identification of optimal conditions for mass transfer limited reactions

Journal article


Publication Details

Author(s): Xie M, Freund H
Journal: Chemical Engineering and Processing
Publisher: ELSEVIER SCIENCE SA
Publication year: 2018
Volume: 124
Pages range: 174-185
ISSN: 0255-2701


Abstract

Multiphase reaction systems are often complex due to the interaction of reaction and transport processes. To design optimal reactors for such systems, a rigorous optimization is necessary. In this regard, this work proposes extensions of a reactor design methodology based on rigorous optimization. Each phase is represented by one fluid element, subject to different mass and energy fluxes. While the unlimited external fluxes are optimally provided along the reaction route, sensitivity analysis of the parameters related to the limited external fluxes is performed. The extended methodology is applied in the reactor design for chemical absorption of CO2 as an example for complex multiphase reaction systems with severe mass transfer limitation. An accurate model which is also numerically suitable for optimization has been set up and validated with pilot plant data from literature. Optimal temperature profiles which result from balancing the different temperature-dependent phenomena are identified for cases with different inlet conditions, and tailor-made heat control strategies are shown for these cases. The potential of the developments in improving mass transfer rates by, e.g., structural design or solvent design has been quantified. This model-based design methodology is generally applicable to different multiphase reaction systems with severe mass transfer limitation.


FAU Authors / FAU Editors

Freund, Hannsjörg Prof. Dr.
Professur für Katalytische Reaktoren und Prozesstechnik
Xie, Mingquan
Professur für Katalytische Reaktoren und Prozesstechnik


Additional Organisation
Exzellenz-Cluster Engineering of Advanced Materials


Research Fields

D Catalytic Materials
Exzellenz-Cluster Engineering of Advanced Materials


How to cite

APA:
Xie, M., & Freund, H. (2018). Rigorous design of multiphase reactors: Identification of optimal conditions for mass transfer limited reactions. Chemical Engineering and Processing, 124, 174-185. https://dx.doi.org/10.1016/j.cep.2017.11.012

MLA:
Xie, Mingquan, and Hannsjörg Freund. "Rigorous design of multiphase reactors: Identification of optimal conditions for mass transfer limited reactions." Chemical Engineering and Processing 124 (2018): 174-185.

BibTeX: 

Last updated on 2019-16-05 at 17:08

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