[Stoves] Steam into a 800 °C hot fire burns harder ,is common known by firemen .

[Crispin Pemberton-Pigott]

Dear Frans

What do you think of the possibility that the charcoal that is touching the steel is catalysed into a carbon gas of some kind?

The charcoal definitely is gasified and if it was not, then only contact points of the steel+charcoal would get hardened.  

If steel is a catalyst for carbon at 900 C then it is possible that a combination of CO (unlikely because of a lack of O2) or CO2 (ditto) could be released directly from the charcoal.

How about the possibility that the nickel in the stainless reacts with the charcoal and releases carbon gas?  That seems unlikely as case hardening also works with iron containers.

Regards
Crispin still searching for an explanation

----- Original Message ----- 
From: Frans Peeters 
Subject: Steam into a 800 °C hot fire burns harder ,is common known by firemen .


Basics :

 

CH4+ H2O-----800-1000 °C ---à  CO+3H2    (1250 ° C in production of H2 )

CO+H2O  ---- 500 °C -----à CO2 +H2       (catalyst Fe2O3 in production of H2 )

 Sum :  1  CH4 -------à 4  H2   !

 

Invers : 3 H2  + CO  ----300 °C + Ni catalyst  -----à CH4 +H2O

            4 H2  + CO2  -----300 °C + Ni catalyst -----à CH4 + 2H2O 

 

Also    4CO   + 2H2O  -------- 275 +Ni catalyst ----à 3 CO2 + CH4

 

Mr Crispin ,mind closed box CARBIDES as surface steel hardening .900 ° C 

Silicon Carbide , Calcium Carbide production ,the HIGH temperature is needed .

 To start the reaction . 

Like  :    Ca O +3C ------2500 °C ------à CaC2 +CO

Carbon evaporation is not for stoves but in  arc plasmas .

 

Old tric for chimney concrete :

Add 5% CaO to get less expansion problems .

 

Concrete glue is Na2SiO3   in presence of CaO or and Al (OH )3 .

 

Water in a parafin stove ( C12 H26 liniair ) may give a negative balance .

But injection systems have a positive balance with 5% (? ) steam .



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