As the title says, I am curious if anybody here has experimented with that ‘other’ plant agnostic source of motor fuel, an emulsion of ( finely powdered) charcoal and water.
A derivititive of coal water slurries, I find it stunning that there is virtually no material available on this type of fuel, bit apparently it is a thing, and it has been shown in research to be usable as is in commercial diesel engines, with comparable energy densities; The only apparent drawback seems to be that coal water slurries required a ‘pilot’ shot of diesel to start the motor for faster running diesels to overcome the thermal inertia of the water - but that might not necessarily be true for charcoal. And even if it was, surely a small blend of say peanut oil added to the mix remove that obstacle( as compared highly refined biodiesel as the only fuel). I would also wager that some lighter fraction of the ‘bio oil’ condensed from the out gas of a gasifier could serve the same purpose, if one is really committed to going the fully self sourced route. And while the most desirable feedstocks( i.e. switchgrass) are said to be too high in silica, that can be fairly easily settled out before final blending.
So yeah - another topic a bit outside the usual subject matter for this group - but that’s the fun, 'ey? But I honestly can’t believe there is so little activity around a fuel that seems to check all the same boxes as wood gas( at least for diesels) without any of the drawbacks. You literally mill it, mix it, and go. No heat, no chemistry, and a very compact fuel from any plant based( or even algael) feedstock available. You’d think this would be all over YouTube.
Also, thanks to everyone who commented on my earlier topic( on the steam production and compression of wood gas). I wasn’t sure if it would get much response, so the large number of comments was nice.