‘Solar’ Jet Fuel Made Out of Thin Air (Average Efficiency of 1.73%)
May 2nd, 2014This is nowhere near viable (at least in terms of what is publicly acknowledged), but I thought it was interesting anyway.
Via: Chemistry World:
The dream of producing hydrocarbon fuels from carbon dioxide and sunlight is one step closer thanks to chemists in Europe who have made jet fuel from scratch in a solar reactor for the first time. Although the chemists only produced enough kerosene to fill a glass jar, they believe a full-scale solar concentrator could produce 20,000 litres of jet fuel a day.
Well it might not be viable for self-fuelling hypersonic ramjets, but might be handy to passively create diesel for isolated farms.
This is the coolest thing I’ve read about in a long time. If too much carbon dioxide in the atmosphere is the problem, and being addicted to energy is what drives that atmospheric problem, this is a win/win: use the excess carbon dioxide for fuel.