Modeling of radial heat transfer in cooled fixed-bed reactors by one- and two-dimensional models : Fischer-Tropsch synthesis as a case study

DOI zum Zitieren der Version auf EPub Bayreuth: https://doi.org/10.15495/EPub_UBT_00008846
URN to cite this document: urn:nbn:de:bvb:703-epub-8846-0

Title data

Kern, Christoph ; Jess, Andreas:
Modeling of radial heat transfer in cooled fixed-bed reactors by one- and two-dimensional models : Fischer-Tropsch synthesis as a case study.
In: Chemical Engineering Science. Vol. 314 (2025) . - 121817.
ISSN 0009-2509
DOI der Verlagsversion: https://doi.org/10.1016/j.ces.2025.121817

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Abstract

New correlations for the overall heat transfer coefficient Uth, designed for use in one-dimensional reactor models for wall-cooled tubular fixed-bed reactors, are presented. These correlations are applicable for estimating both critical conditions related to thermal runaway and reactor performance under safe operating conditions. They were derived by comparing a 1D and a 2D model, initially for Fischer-Tropsch synthesis (FTS) as a case study, and subsequently extended beyond this specific reaction system. Additionally, a novel approach is introduced for estimating critical runaway conditions without relying on a reactor model. This method is based solely on reaction kinetics, the effective thermal conductivity λrad, and the heat transfer coefficient αwall, which accounts for heat transfer near the reactor wall.

Further data

Item Type:	Article in a journal
Keywords:	Fischer-Tropsch; Multi-tubular reactor; Heat transfer; 1D and 2D model; Thermal runaway
DDC Subjects:	500 Science > 540 Chemistry 600 Technology, medicine, applied sciences > 600 Technology 600 Technology, medicine, applied sciences > 620 Engineering 600 Technology, medicine, applied sciences > 660 Chemical engineering
Institutions of the University:	Faculties > Faculty of Engineering Science Faculties > Faculty of Engineering Science > Chair Chemical Engineering Faculties > Faculty of Engineering Science > Chair Chemical Engineering > Chair Chemical Engineering - Univ.-Prof. Dr.-Ing. Andreas Jess Research Institutions > Research Units > Zentrum für Energietechnik - ZET Faculties Research Institutions Research Institutions > Research Units
Language:	English
Originates at UBT:	Yes
URN:	urn:nbn:de:bvb:703-epub-8846-0
Date Deposited:	03 Feb 2026 13:03
Last Modified:	03 Feb 2026 20:40
URI:	https://epub.uni-bayreuth.de/id/eprint/8846

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