| Title | Advancements in E-Fuel combustion systems for a sustainable energy future |
|---|---|
| ID_Doc | 33694 |
| Authors | Boretti, A |
| Title | Advancements in E-Fuel combustion systems for a sustainable energy future |
| Year | 2024 |
| Published | |
| Abstract | The term "e-fuel" typically refers to synthetic fuels produced using renewable energy sources, primarily starting with green hydrogen. Hydrogen serves as the foundational e-fuel, but there are also proposed solutions involving combining hydrogen with carbon dioxide to produce e-fuels that resemble today's alkanes or alcohols. The production process integrates water electrolysis, CO2 capture, and fuel synthesis, all powered by renewable sources like wind and solar energy. Key processes include hydrogen generation using various electrolyzers and CO2 capture from either direct air capture or industrial sources. Subsequently, hydrogen and captured CO2 are synthesized into hydrocarbons using methods such as Methanol Synthesis, Fischer-Tropsch Synthesis, and the Sabatier Process. Advances in catalyst technology, reactor design, and renewable energy integration are enhancing production efficiency and feasibility. Although currently more expensive than fossil fuels, e-fuels are expected to become cost-competitive with technological advancements and supportive policies. They offer significant environmental benefits, including carbon neutrality and reduced pollution. One crucial enabler of e-fuels is the development of novel combustion systems for internal combustion engines. Innovations such as direct injection and jet ignition improve combustion efficiency when using e-fuels. These systems enable optimized premixed or diffusion combustion, balancing efficiency and performance for both liquid and gaseous fuels resembling diesel or gasoline. E-fuels are poised to play a vital role in achieving a sustainable, low-carbon energy future, particularly in sectors where direct electrification is challenging. Continued research and policy support are essential for their further development, with direct injection and jet ignition systems playing an integral part in this transformative journey. |
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