Global S&T Development Trend Analysis Platform of Resources and Environment
Electrofuels – the time is right | |
admin | |
2022-03-17 | |
发布年 | 2022 |
语种 | 英语 |
国家 | 德国 |
领域 | 地球科学 |
正文(英文) | DLR proposes development platform for Power-to-Liquid fuels (PtLs)Along with alternative propulsion systems and other optimisations, electricity-based fuels (e-fuels) are necessary in order to achieve ambitious climate protection goals in road and maritime transport. There is simply no alternative to them in air transport, particularly for long-haul routes. Germany is aiming to reduce its carbon emissions by 65 percent before 2030 and achieve climate neutrality by 2045. In this interview, Manfred Aigner, long-standing Director of the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) Institute of Combustion Technology and an expert in alternative fuels, describes what e-fuels are, the opportunities they offer and what steps need to be taken to make this technology suitable for industrial use and large-scale production.
What are electrofuels and why are they a good idea? Going forward, Germany will still have to import a significant proportion of its energy. E-fuels are ideal for this, as they can be transported and distributed over long distances and with only minor changes to the existing infrastructure. They are good news for both the climate and the environment, as their chemical composition can be optimised to, for example, create no fine particulates during the combustion process.
Where can e-fuels be used? Another advantage of using e-fuels is that we can usually use the existing infrastructure, vehicles and aircraft for transporting, distributing and storing them. E-fuels make sense in the automotive sector, too. Almost 50 million cars are currently registered in Germany, and it will take decades for the entire passenger car fleet to convert to battery- or fuel-cell-powered vehicles. If we are to achieve the climate targets by the deadline, we need both – e-fuels and alternative propulsion systems.
What are the disadvantages of e-fuels?
How far has the technology advanced? Generally speaking, the carbon required for e-fuels can also come from biomass. Further progress has been made in this area, with around 10 million tonnes of biofuels produced every year. However, biomass alone will not be sufficient as a source of carbon. It is also worth noting that the cultivation of biomass for fuel must not compete with food production.
What is the next step to be taken? In the air transport sector, we also have to develop e-fuels that can be used without mixing them with conventional fuels. At the moment, they are limited to 50 percent. This would not only save larger amounts of carbon dioxide, but also significantly reduce the non-carbon-dioxide effects of air transport on the climate. As things stand, these non-carbon-dioxide effects are at least as damaging as the climate impact of the emitted carbon dioxide. Using 100 percent e-fuels would make air transport largely climate-neutral.
What expertise does DLR have in the area of e-fuels? |
URL | 查看原文 |
来源平台 | German Aerosapce Center |
文献类型 | 新闻 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/348712 |
专题 | 地球科学 |
推荐引用方式 GB/T 7714 | admin. Electrofuels – the time is right. 2022. |
条目包含的文件 | 条目无相关文件。 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
查看访问统计 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[admin]的文章 |
百度学术 |
百度学术中相似的文章 |
[admin]的文章 |
必应学术 |
必应学术中相似的文章 |
[admin]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论