笑死人!德国正在研发“电制气” 文中就说脱裤子放屁
Power-to-gas (PtG/P2G) refers to the use of renewable electricity
to produce these fuels through electrolysis and methanation. Industry and researchers have struggled to agree on what to call renewable PtG products, using terms such as synthetic gases, wind gas, solar gas, or power-based gases, among others.
At the same time, synthetic fuels have significant disadvantages. A lot of energy is lost during electrolysis, methanation and storage, meaning producing them requires large amounts of renewable energy. After electrolysis, only about 67 - 81 percent of the energy remain, and after
the additional step of methanation, only about 54 - 65 percent is left. The production of synthetic fuels is laborious and they will always be more costly and less efficient than direct electricity use.
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