The longevity of the emulsion is a bit of a problem without the aid of an emulsifying agent.Maybe the particle size and relative specific gravitiy variations are minimal.I think without some sort of intervention the emulsion will destabilise -the timescale will be relative to the blend.
Dustofnations; I think the 'Cavitech' process may work by using a positive displacement pumping system to mix the constituents. Continually pumping around a closed loop system can create a lot of shear stress. to the 'mix'.This should be one way to emulsification-maybe? Many years ago the company i worked for at the time used a similar mixing technique to produce a slurry of constant concentration.Sometimes when the mixing cycle was overextended the resulting physical characteristics of the slurry resembled that of an emulsion. The type of mixing pump used in that case was a stator rotor type.
With a horse race ,you can see the runners and riders and the course.Aim runs the race generally in the dark ,changing the length of the track and rules to suit themselves at will .
Thermodynamically Emulsions tend to be unstable because liquid systems have a propensity to reduce the total area of contact between each phase ,hence it's interfacial energy.
The combustable material burns more efficiently because of particle size ,so very little carbon remains. The lower flame temperature reduces the formation of NOx . Suggest you visit QFI website for further info.
During last night's ' debate' on Sky both Tory candidates mentioned maximising North sea gas yield and the use of fracking, Need to do this sooner than later imho.