Low temperature catalytic thermolysis of water

[pix]

Heating water to 400-500 degC is not a "low temperature" 
It is superheated steam.

Thermolysis it  very energy consuming process, known long time ago.

[alan]

This is the correct mechanism. 
https://www.youtube.com/watch?v=0Pl5qBajPLk

[Sergh]

Heating water to 400-500 degC is not a "low temperature" 
It is superheated steam.

Thermolysis it  very energy consuming process, known long time ago.

Ordinary water thermolysis, which occurs at min 2200 °C:

https://en.wikipedia.org/wiki/Water_splitting

"at 2200 °C about three percent of all H2O are dissociated into various combinations of hydrogen and oxygen atoms, mostly H, H2, O, O2, and OH. Other reaction products like H2O2 or HO2 remain minor. At the very high temperature of 3000 °C more than half of the water molecules are decomposed"

This will be very difficult. Ignition temperature of hydrogen in oxygen:

"For the stoichiometric mixture, 2:1 hydrogen:oxygen, at normal atmospheric pressure, autoignition occurs at about 570 °C (1065 °F). "

https://en.wikipedia.org/wiki/Oxyhydrogen

The mixture of oxygen and hydrogen at 3000 °C must be somehow separated before cooling, otherwise it will burn again.
Therefore, the process of thermal dissociation below the autoignition temperature already looks energetically low-cost.

The temperature 400 - 450  °C is too high, but ..what is temperature?
Can the temperature change from 80 °C to 450 °C with a frequency of 50 Hertz?

It would seem that it is impossible to change the temperature so quickly, but in a conventional internal combustion engine it is possible, in the cylinders.

Adiabatic process.
https://en.wikipedia.org/wiki/Adiabatic_process

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1. https://patents.google.com/patent/SU807584A1/en?oq=SU807584A1
English translation, .pdf:
https://overunity.com/16440/hho-generation-using-high-frequency-electromagnetic-waves-on-water/dlattach/attach/173964/

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2.  https://patents.google.com/patent/GEP20074038B/en?oq=GEP20074038B
Abstract:
   A method comprises heating water vapor together with the catalyst at pressure 8,0-10,0 atm. The received mix is cooled during (3-5)х10-3sec. up to temperature 70,0-80,00С and simultaneously with it pressure is lower up to 0,5-0,7atm. Then by means of addition water vapor hydrogen is isolated and process is repeated.

English translation, .pdf:
https://overunity.com/16440/hho-generation-using-high-frequency-electromagnetic-waves-on-water/dlattach/attach/173965/

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3. The MOTOR. Probably this:

https://www.youtube.com/watch?v=kIMXgLuq6gA
https://www.youtube.com/watch?v=rUoY_qmBg-g

[pix]

As I said, superheated steam requires large amount of energy.
Nothing novel about water thermolysis.

[Sergh]

Yes, but the dissociation products remain the same hot.


Thermal energy does not disappear, except for the consumption for the endothermic reaction of thermal dissociation of water.


But this consumption of thermal energy is only on the condition that ordinary water thermal dissociation occurs.


When water is simply heated to 3000 °C and there is no catalyst in the form of a zeolite with cavities less than 1 nanometer.