Question by Mortaro: What about oxygen as a fuel for motor vehicles? Cheap and abundant! How about that, oil companies?
Use of oxygen – gas or liquid as alternative to fossil fuels: cheap, plentiful. Certainly, someone could invent an engine that will burn 02!
Answer by donfletcheryh
The internal combustion engine runs on oxygen, as long as you supply a reducing material such as a hydrocarbon.
You can imagine using compressed gas to propel a car, but somewhere you have to power the compression. And extracting oxygen from the air is not without energy cost.
It might be more economical to use a mixture about 18% oxygen, 91% nitrogen, under high pressure.
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