@misc{12832,
  abstract     = {{Formulating energy policies at national, European, and global levels is extremely challenging. The move away from fossil fuels is associated with a variety of technological, economic, and social implications, each of which is subject to dynamic changes and societal scrutiny and can hardly be predicted with certainty. Therefore, a fact-based assessment for the path to a sustainable green energy future is sought out in this paper, using the road-based mobility sector of the Federal Republic of Germany as an example. The analysis performed in this paper is built on publicly accessible, reputable sources like DESTATIS and EUROSTAT. In addition, some very simple calculations were made, e.g., on the potential for wind and photovoltaic energy within Germany. Such an analysis needs to start with the overall energy consumption of any one country. A basic assumption of the paper is that the energy system of the future will be based to a large extent on electricity and its storage in chemical energy. It is assumed that, in addition to hydrogen, liquid energy sources will play a significant role due to the simplicity of their logistics and the subsequent implications on cost. Examples of green, electricity-based fuels with great potential are methanol, methane, and ammonia. Additionally, biomass plays an important role, either for direct use as a fuel or as a source of non-fossil carbon. Today, biofuels, i.e., biodiesel and bioethanol, deliver the largest contribution to climate protection in the EU transport sector. The main goal—the reduction of greenhouse gas emissions—often collides with geopolitical circumstances or national political necessities. This includes, for example, the current world market situation and its national impacts caused by the Russian attack on Ukraine. The prospect for a green, sustainable, and defossilized energy supply are discussed in this context. The paper concludes that a defossilized world energy supply and trade based on renewable electricity and its derivatives, eHydrogen and refuels, and on biomass, is feasible.}},
  author       = {{Atzler, Frank and Türck, Julian and Türck, Ralf and Krahl, Jürgen}},
  booktitle    = {{  Energies : open-access journal of related scientific research, technology development and studies in policy and management }},
  issn         = {{1996-1073}},
  keywords     = {{eFuels, biomass, bioFuels, energy transition, energy supply, defossilation, mobility, energy storage, energy transport, regenerative energy}},
  number       = {{12}},
  publisher    = {{MDPI AG}},
  title        = {{{The Energy Situation in the Federal Republic of Germany: Analysis of the Current Situation and Perspectives for a Non-Fossil Energy Supply}}},
  doi          = {{10.3390/en16124569}},
  volume       = {{16}},
  year         = {{2023}},
}

@misc{12836,
  abstract     = {{The complexity of biodiesel aging has shown that the mechanism needs further research. The rate of aging product formation and associated interactions can help improve fuel quality. Since biodiesel is a multicomponent system and constant changes occur in the chemical environment, which interactions yield which products must be shown in more detail. Particularly under observation was the correlation between peroxides and epoxides. In addition, it is critical that the influence and interactions of new drop-in fuel candidates be investigated. In this work, the kinetics of the formation of aging products of methyl oleate (C18:1) are studied. The aim was to reduce the complexity in order to be able to make more precise and detailed statements about the mechanism. Ketones, acids, peroxide, and epoxide values were recorded. A distinction is made between pure methyl oleate and mixtures with 3 wt% isopropylidene glycerine (solketal). After solketal decomposed in the blends, the aging process showed changes. The influence of solketal resulted in a higher number of acids and epoxides over time. It implied that peroxides are not necessarily the precursor of epoxides. In summary, correlation and solketal’s influence showed that a sequence of aging products could be detected.}},
  author       = {{Türck, Julian and Schmitt, Fabian and Anthofer, Lukas and Lichtinger, Anne and Türck, Ralf and Ruck, Wolfgang and Krahl, Jürgen}},
  booktitle    = {{Energies : open-access journal of related scientific research, technology development and studies in policy and management}},
  issn         = {{1996-1073}},
  keywords     = {{oxidation kinetics, biodiesel aging, methyl oleate, solketal, alcohol influence, sequence of aging products}},
  number       = {{7}},
  publisher    = {{MDPI AG}},
  title        = {{{Oxidation Kinetics of Neat Methyl Oleate and as a Blend with Solketal}}},
  doi          = {{10.3390/en16073253}},
  volume       = {{16}},
  year         = {{2023}},
}