[Stoves] Distillation and oxidation Re: Understanding TLUDs, MPF and more. (was Re: Bangladesh TLUD )

[Paul Anderson]

Andrew,

There were no other comments.   I did not mean to limit who could respond.

I was not aware of       nuclear magnetic resonance.    Sounds like 
awesome science.

Paul

Doc  /  Dr TLUD  /  Prof. Paul S. Anderson, PhD
Email:  psanders at ilstu.edu
Skype:   paultlud    Phone: +1-309-452-7072
Website:  www.drtlud.com

On 1/6/2018 2:44 PM, Andrew Heggie wrote:
> On 4 January 2018 at 01:10, Paul Anderson <psanders at ilstu.edu> wrote:
>
>> Oxidation during pyrolysis:
>>
>> Not a reference, but a statement and question:   When a carbohydrate
>> molecule (containing O and H and C) is broken apart by heat (which is the
>> process of pyrolysis), what happens inside the molecule is not totally
>> understood.  Is it not possible that a carbon atom that is linked to an
>> oxygen atom (and to many other atoms) could not be shedding the other atoms
>> and the C + O are never separated?   That would result in a molecule of CO
>> that is NOT from the combination of C with O, and therefore the C was not
>> oxidized.   The C was already with the O.
>>
>> The "atomic scientists" can discuss that possibility.   I leave it as CO
>> being present as a result of pyrolysis, and not necessarily because some
>> "free standing" "liberated" atom of O was then joined with an atom of C.
> Paul  did you get any further with this?
>
> I suspect you narrowed the field a bit by qualifying who should reply.
>
> There are two separate points here
>
> 1) It is probably known which bonds are broken and new ones remade
> during pyrolysis as nuclear magnetic resonance enables a lab to
> estimate types and  the frequency of occurrence of different bonds,
> each bond C-C C=C C-O -OH re radiates the energy at different
> frequencies. More importantly is whether there is enough energy is
> available to break the bond. and this leads to point 2
>
> 2) Crispin seems to be saying that, given knowledge of all the bonds
> in a piece of wood, there is net energy available  to reform all the
> hydrogen with the oxygen in the wood  to give water and carbon as the
> outputs? Have I got that right Crispin?
>
> It may be so but for the purposes of burning fuel in cookstoves we are
> just going to have to supply air and enough initial heat for oxygen
> molecules to dissociate and react with the fuel.
>
> Andrew
>
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