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Audi creates green 'e-diesel fuel of the future' using just carbon dioxide and water
Key Excerpts from Article on Website of International Business Times
Posted: May 11th, 2015
http://www.ibtimes.co.uk/audi-creates-green-e-diesel-fuel-fu...
German car manufacturer Audi says it has created the "fuel of the future" made solely from water, carbon dioxide and renewable sources. The synthetic "e-diesel" was made following a commissioning phase of just four months at a plant in Dresden, Germany. Unlike regular diesel, the clear fuel does not contain any sulphur or fossil oil, while it has an overall energy efficiency of around 70%. Creation of the fuel, which Audi and Sunfire are calling blue crude, first requires heating water to 800C (1,472F) to trigger a high temperature electrolysis to break down the steam to hydrogen and oxygen. The hydrogen then reacts with the CO2 in synthesis reactors, again under pressure and at a high temperature. The reaction product is a ... synthetic fuel, which is free from sulphur and aromatic hydrocarbons, [that] is suitable for mixing with fossil diesel or being used as a fuel in its own right. Reiner Mangold, head of sustainable product development at Audi, said: "In developing Audi e-diesel we are promoting another fuel based on CO2 that will allow long-distance mobility with virtually no impact on the climate."
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