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Process Intensification in Chemical Reaction Engineering. Processes (Basel) 2022. [DOI: 10.3390/pr10071294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Process Intensification (PI) is a modern trend in Chemical Reaction Engineering (CRE) science [...]
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Wehinger GD, Scharf F. Thermal radiation effects on heat transfer in slender packed-bed reactors: Particle-resolved CFD simulations and 2D modeling. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.05.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Müller M, Kutscherauer M, Böcklein S, Wehinger G, Turek T, Mestl G. Modeling the selective oxidation of n-butane to maleic anhydride: From active site to industrial reactor. Catal Today 2022. [DOI: 10.1016/j.cattod.2021.04.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Particle-Resolved Computational Fluid Dynamics as the Basis for Thermal Process Intensification of Fixed-Bed Reactors on Multiple Scales. ENERGIES 2021. [DOI: 10.3390/en14102913] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Process intensification of catalytic fixed-bed reactors is of vital interest and can be conducted on different length scales, ranging from the molecular scale to the pellet scale to the plant scale. Particle-resolved computational fluid dynamics (CFD) is used to characterize different reactor designs regarding optimized heat transport characteristics on the pellet scale. Packings of cylinders, Raschig rings, four-hole cylinders, and spheres were investigated regarding their impact on bed morphology, fluid dynamics, and heat transport, whereby for the latter particle shape, the influence of macroscopic wall structures on the radial heat transport was also studied. Key performance indicators such as the global heat transfer coefficient and the specific pressure drop were evaluated to compare the thermal performance of the different designs. For plant-scale intensification, effective transport parameters that are needed for simplified pseudo-homogeneous two-dimensional plug flow models were determined from the CFD results, and the accuracy of the simplified modeling approach was judged.
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Wehinger GD. Young Scientists – Juniorprofessor Gregor D. Wehinger stellt sich vor. CHEM-ING-TECH 2021. [DOI: 10.1002/cite.202100039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Gregor D. Wehinger
- Technische Universität Clausthal Institut für Chemische und Elektrochemische Verfahrenstechnik Leibnizstraße 17 38678 Clausthal-Zellerfeld Deutschland
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