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Intrinsic and Effective Kinetics of Cobalt : Catalyzed Fischer-Tropsch Synthesis in View of a Power-to-Liquid Process Based on Renewable Energy

Title data

Kaiser, Philipp ; Pöhlmann, Ferdinand ; Jess, Andreas:
Intrinsic and Effective Kinetics of Cobalt : Catalyzed Fischer-Tropsch Synthesis in View of a Power-to-Liquid Process Based on Renewable Energy.
In: Chemical Engineering & Technology. Vol. 37 (2014) Issue 6 . - pp. 964-972.
ISSN 1521-4125
DOI: https://doi.org/10.1002/ceat.201300815

Official URL: Volltext

Abstract in another language

The production of liquid hydrocarbons based on CO2 and renewable H2 is a multi-step process consisting of water electrolysis, reverse water-gas shift, and Fischer-Tropsch synthesis (FTS). The syngas will then also contain CO2 and probably sometimes H2O, too. Therefore, the kinetics of FTS on a commercial cobalt catalyst was studied with syngas containing CO, CO2, H2, and H2O. The intrinsic kinetic parameters as well as the influence of pore diffusion (technical particles) were determined. CO2 and H2O showed only negligible or minor influence on the reaction rate. The intrinsic kinetic parameters of the rate of CO consumption were evaluated using a Langmuir-Hinshelwood (LH) approach. The effectiveness factor describing diffusion limitations was calculated by two different Thiele moduli. The first one was derived by a simplified pseudo first-order approach, the second one by the LH approach. Only the latter, more complex model is in good agreement with the experimental results.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: Cobalt catalyst
Fischer-Tropsch synthesis
Mass transfer
Power-to-liquid process
Renewable energy
Institutions of the University: Faculties
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
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: 21 Jan 2015 13:17
Last Modified: 17 May 2017 07:20
URI: https://eref.uni-bayreuth.de/id/eprint/5712