Title data
Unglaub, Carsten ; Thiessen, Johannes ; Jess, Andreas:
Enhancement of Fischer-Tropsch Synthesis by Periodical Draining of the Wax-Filled Pores of a Cobalt Catalyst by Hydrogenolysis.
In: Catalysis Research.
Vol. 3
(2023)
Issue 1
.
- 001.
ISSN 2771-490X
DOI: https://doi.org/10.21926/cr.2301001
Abstract in another language
Fischer-Tropsch reactors operated in a steady state suffer from a low pore effectiveness factor and a high methane selectivity caused by internal mass transfer limitations due to the accumulation of long-chain hydrocarbons inside the catalyst pores. Therefore, an alternating process switching between Fischer-Tropsch synthesis (FTS) and drainage of the pores by hydrogenolysis is proposed. The periodical cracking of the accumulated waxes within the (partially) filled pores, realized by a switch from syngas (H2, CO) to pure hydrogen, results in a higher overall catalyst productivity and a more favorable product distribution. The influence of temperature and time of FTS on drainage time and product distribution was experimentally investigated at typical temperatures of FT fixed bed processes in a range of 210 to 240°C. Alternating drainage of the pores by hydrogenolysis at a hydrogen partial pressure of just 1 bar leads to an improvement of the rate of CO conversion by up to 90% (240°C, 2 h FTS) and an improvement of even 120% concerning the rate of production of non-methane hydrocarbons (240°C, 2 h FTS).
Further data
Item Type: | Article in a journal |
---|---|
Refereed: | Yes |
Keywords: | Hydrogenolysis; energy storage; pore draining; Fischer-tropsch synthesis |
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 Faculties |
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 09:23 |
Last Modified: | 06 Sep 2023 11:18 |
URI: | https://eref.uni-bayreuth.de/id/eprint/73539 |