The Turbo-Fuel-Cell 1.0 – family concept

Berg, H. P.; Himmelberg, A.; Lehmann, Mario; Dückershoff, Roland; Neumann, Mathias

doi:10.1088/1757-899x/297/1/012004

Cited by 8 publications

(1 citation statement)

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“…Hydrogen as a fuel, in different kinds of fuel cells, has also been gaining relevance during the last decades [6,7]. Among others, there are innovative approaches, as presented in [8], for decentralized energy productions, wherein hydrogen gained from methane steam reforming (MSR) is used in a MGT-SOFC hybrid system consisting of a recuperated micro gas turbine (MGT) process with an embedded solid oxide fuel cell (SOFC) subsystem.…”

Section: Introductionmentioning

confidence: 99%

Reaction Mechanism Development for Methane Steam Reforming on a Ni/Al2O3 Catalyst

et al. 2023

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In this work, a reliable kinetic reaction mechanism was revised to accurately reproduce the detailed reaction paths of steam reforming of methane over a Ni/Al2O3 catalyst. A steady-state fixed-bed reactor experiment and a 1D reactor catalyst model were utilized for this task. The distinctive feature of this experiment is the possibility to measure the axially resolved temperature profile of the catalyst bed, which makes the reaction kinetics inside the reactor visible. This allows for understanding the actual influence of the reaction kinetics on the system; while pure gas concentration measurements at the catalytic reactor outlet show near-equilibrium conditions, the inhere presented temperature profile shows that it is insufficient to base a reaction mechanism development on close equilibrium data. The new experimental data allow for achieving much higher quality in the modeling efforts. Additionally, by carefully controlling the available active surface via dilution in the experiment, it was possible to slow down the catalyst conversion rate, which helped during the adjustment of the reaction kinetics. To assess the accuracy of the revised mechanism, a monolith experiment from the literature was simulated. The results show that the fitted reaction mechanism was able to accurately predict the experimental outcomes for various inlet mass flows, temperatures, and steam-to-carbon ratios.

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Section: Introductionmentioning

confidence: 99%