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Performance of a multi-tubular Fischer–Tropsch reactor with two catalytic zones of different intrinsic chemical activity

Title data

Kern, Christoph ; Jess, Andreas:
Performance of a multi-tubular Fischer–Tropsch reactor with two catalytic zones of different intrinsic chemical activity.
In: Catalysis Science & Technology. Vol. 13 (2023) Issue 2 . - pp. 516-527.
ISSN 2044-4761
DOI: https://doi.org/10.1039/D2CY01804G

Abstract in another language

The effect of axial distribution of the intrinsic catalytic activity on the performance of a multi-tubular fixed bed Fischer–Tropsch reactor was investigated. The reactor was modelled based on kinetic data for a cobalt catalyst. The influence of pore diffusion on the effective rate of CO conversion was considered. The maximum temperature was limited to 240 °C to avoid excessive methane formation. In each case, the cooling temperature was set to a value 5 K below the ignition temperature to ensure a sufficient safety distance to thermal runaway. At first, the optimal activity for the standard case of a uniform axial activity was determined. The activity should then be limited for the given conditions to a value corresponding to a Co content in the catalyst of 13 wt to reach the highest CO conversion, here XCO = 41. For a reactor with two zones of equal length, but different catalytic activity, a mean value of the Co content of 31 wt is optimal, 23 wt in the front zone and 40 wt in the rear part of the tubes. XCO is then 51 compared to only 38 for uniform distribution and a Co content of 31 wt.

Further data

Item Type: Article in a journal
Refereed: Yes
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 > ZET - Zentrum für Energietechnik
Faculties
Research Institutions
Research Institutions > Research Units
Result of work at the UBT: Yes
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
Date Deposited: 27 Jan 2023 08:55
Last Modified: 27 Jan 2023 08:55
URI: https://eref.uni-bayreuth.de/id/eprint/73536