No....I don't see any practical manner in which you could make that work, efficiently or otherwise. you could filter the exhaust and collect the oil in a separate tank but that's about it and will cost you big in back pressure and lost propulsive force.....and BTW you'll still lose oil to the atmosphere...of course in a completely sealed system it wouldn't matter....hence my fondness for R134A and other refrigerants...lower pressure in liquid state than air (a couple hundred psi vs thousands psi), low boiling point, and lubricative properties
To get a 4500psi tank filled to pressure would take one hell of a compressor an create one hell of a bomb...R134A can be readily compressed by relatively small and efficient motors like those found on a typical electric scooter powering a typical automotive A/C compressor....properly set up you'd be lookin at a few minutes of battery time to a few minutes on cold power...possibly double or triple range in a hot day.
