higher efficiency catalytic converter with hilsch vortex

It is my thought that during the 20th century catalytic converters made up about 1 or 2 pct of the value of a vehicle during the 20th century. (recycle value 125, vehicle new 10k or 20k) Noting that the margins on producing autos is published at 2 or 3 pct creating a catalytic converter at a third the cost would noticeably raise automakers profit margins as well as benefit their share values. Further, the creation of very cheap catalytic converters would permit persons at the developing world, some of whom use 2 wheeled vehicles, to produce much less pollution.

First visualize a well known physics illustration, a container with apertures down the side that is full of water. The water spouts out lightly near the top, with a similar stream at the base, highest pressure near the base. That is due to gravity on water. Now a nongravity pressure version of this at a tube of moving gas would have the longer streams at the top, with the minimal streams far from the tube. I think that a well researched thing called a hilsch vortex tube could be used at the higher pressure streams to concentrate warm as well as cool gas flows. Importantly the multiaperture structure permits the overall back pressure to be at a range harmless to fuel mileage.

At this application these vortex tubes are rather teeny. I think microprinted hilsch vortex tubes could be used to divide the exhaust into warmer n cooler portions, where the warmer gases would be used to rapidly warm active start areas of the catalytic converter to active temperature. (I have read that warmup time on catalytic converters strongly affects the pollutionality of commutes) It is imaginable that the cooling gas from a hilsch tube might be used to cool a portion of the preconverter gas stream to actually condense moisture. The less water vapor that reaches the catalytic converter the higher the mole fraction of active material contacting catalyst, thus being converted to preferred output with less material.

So, will it actually work? I think 3d miniprinting the numerous minihilshvortexes as well as miniducts to macroducts could actually make the thing fairly cheap. Remember it has zero moving parts. Also, the sandwich theorem of calculus suggests that there is actually a gas engine it would work with, (engine with exhaust temperature of 100 average temperature units, catalytic converter works better at 120, where 0 to 2 pct backpressure removes 90 pct of pollution at 120) all the way to a nonworking version, so that suggests there are engines between these values.

Noting the commercial viability of hybrid vehicles, this may be improved with electronic tuning at the complexity of having moving parts. It is possible that backpressure is permissible during times similar to the electric portions of as hybrid vehicles function.

I am personally most supportive of using this as a a zero moving parts approach to reducing the cost as well as physical volume of catalytic converters so that developing worlders can have minimal emissions vehicles.