Effizienzbewertung biomassebasierter PtX-Systeme

Eggers, Natascha; Birth, Torsten

doi:10.1007/978-3-658-33497-0_2

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“…This makes a holistic, objective comparison of the impossible processes. However, this is indispensable if the optimizability of the overall process is to be determined [12]. While the efficiency of purely technical processes can at least be described thoroughly, biological (sub)processes are even more difficult to describe due to their complexity.…”

Section: Challenges In Optimizing Biological Processesmentioning

confidence: 99%

Optimizability of Biogenic Hydrogen Production

Eggers,

Kirsch,

Giebner

et al. 2024

From Biomass to Biobased Products

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The biogenic hydrogen production by dark fermentative digestion of biomass shows excellent potential for solving the recent energy difficulties. To augment the efficiency of this process, the biochemical degradation needs to be understood better. The physical optimum (PhO) method was found to be particularly suitable to illustrate the maximum potential of the process. It is based on a theoretical, ideal reference state. For this purpose, the dark fermentation was modeled mathematically using Petri nets, a modeling language based on graph theory. The Petri net model was developed based on the biochemical reactions system of anaerobic digestion. All degradative steps relevant to hydrogen production were included. Then the modeled metabolic rates were analyzed to be used as a reference base in evaluating the process’s efficiency. This ideal reference state, the anaerobic digestion’s PhO, was compared with experimental data by the PhO factor. This factor summarizes the efficiency of the whole process.

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Section: Challenges In Optimizing Biological Processesmentioning

confidence: 99%