The company’s pilot plant, which is operated by German startup Sunfire in Dresden, produced its first batches of the “e-diesel” this month. German Federal Minister of Education and Research Johanna Wanka put a few liters of the fuel in her work car, an Audi A8, to commemorate the accomplishment.
image/text credit: Dabi.tk
The base fuel is referred to as “blue crude,” and begins by taking electricity from renewable sources like wind, solar or hydropower and using it to produce hydrogen from water via reversible electrolysis.
The hydrogen is then mixed with CO2 that has been converted into CO in two chemical processes and the resulting reactions produce a liquid made from long-chain hydrocarbons.
This is blue crude, which is then refined to create the end product, the synthetic e-diesel.The clean energy company responsible for making the first successful batch of blue crude say that it has a 70% energy efficiency.