Power‐to‐Gas

Ewald, Stefan; Koschany, Franz; Schlereth, David; Wolf, Moritz; Hinrichsen, Olaf

doi:10.1002/ciuz.201500715

Cited by 5 publications

(2 citation statements)

References 10 publications

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“…From the corresponding time range, it can be stated that a reactor for CO methanation has a characteristic intermediate storage time up to minutes, due to its buffer abilities (c.f. [2]).…”

Section: Momentum Analysismentioning

confidence: 99%

“…Second, operation of fully dynamic processes, which induces a complex spatialtemporal behavior of chemical reactors operated based on renewable energies [1]. Most probably a mixture of both concepts might be the techno-economical optimum [2][3][4]. Both boarder scenarios and a realistic mixture thereof need flexibility in the involved processes and require unsteady-state or dynamic operation in particular, ensuring stability in all states of the process.…”

Section: Introductionmentioning

confidence: 99%

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Study on the tolerance of low-temperature CO methanation with single pulse experiments

Friedland

Turek

Güttel

2022

Preprint

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In this contribution, single pulse reaction experiments are discussed in the context of dynamic reactor operation and used to determine the tolerance of reactors arising from sorption effects at the catalyst surface. A defined amount of CO is dosed together with an internal standard (He) in a constant H2 stream, and the pulse response is observed with reference to the internal standard, which is representing the fluid dynamics of the injected pulse. Different responses are obtained depending on the catalyst mass (Ni/Al2O3) and the operation temperature (170°C-300°C). The tolerance of the reactor can be deduced from the experimental findings. On the one hand, the catalyst adsorption capacity determines the ability to buffer fluctuations at low reaction temperatures (𝑇<220 °𝐶), which are beneficial for full-conversion, overcoming thermodynamic restrictions. On the other hand, temperature determines the transient response of the system and is independent of the catalyst mass. From these findings the study reveals that reactors represent important buffer systems during load changes in dynamic operation modes and provide an intrinsic tolerance originating from sorption processes at the catalyst surface.

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“…From the corresponding time range, it can be stated that a reactor for CO methanation has a characteristic intermediate storage time up to minutes, due to its buffer abilities (c.f. [2]).…”

Section: Momentum Analysismentioning

confidence: 99%