Publication Details

Category Text Publication
Reference Category Journals
DOI 10.3390/fermentation9080774
Licence creative commons licence
Title (Primary) Design and construction of a new reactor for flexible biomethanation of hydrogen
Author Hoffstadt, K.; Cheenakula, D.; Nikolausz, M.; Krafft, S.; Harms, H.; Kuperjans, I.
Source Titel Fermentation
Year 2023
Department UMB
Volume 9
Issue 8
Page From art. 774
Language englisch
Topic T7 Bioeconomy
Keywords methanation; plug flow reactor; bubble column; bio-methane; power-to-gas; P2G
Abstract The increasing share of renewable electricity in the grid drives the need for sufficient storage capacity. Especially for seasonal storage, power-to-gas can be a promising approach. Biologically produced methane from hydrogen produced from surplus electricity can be used to substitute natural gas in the existing infrastructure. Current reactor types are not or are poorly optimized for flexible methanation. Therefore, this work proposes a new reactor type with a plug flow reactor (PFR) design. Simulations in COMSOL Multiphysics ® showed promising properties for operation in laminar flow. An experiment was conducted to support the simulation results and to determine the gas fraction of the novel reactor, which was measured to be 29%. Based on these simulations and experimental results, the reactor was constructed as a 14 m long, 50 mm diameter tube with a meandering orientation. Data processing was established, and a step experiment was performed. In addition, a kLa of 1 h−1 was determined. The results revealed that the experimental outcomes of the type of flow and gas fractions are in line with the theoretical simulation. The new design shows promising properties for flexible methanation and will be tested.
Persistent UFZ Identifier
Hoffstadt, K., Cheenakula, D., Nikolausz, M., Krafft, S., Harms, H., Kuperjans, I. (2023):
Design and construction of a new reactor for flexible biomethanation of hydrogen
Fermentation 9 (8), art. 774 10.3390/fermentation9080774