[Gasification] Getting both heat and char .....

[Paul Anderson]

Rolf,

Good update.   I hope Pilar is back on target soon.

I cannot help much with the kiln, but I would recommend simple with 
firebrick contained inside of a layer of metal or other fire bricks.   
For me, it is the "target" into which the hot flame is sent.

I will assist you about a version of the Dasifier.   I will try to 
reestablish contact with Agua Das himself.

We are now in a preparation stage, then an experimental unit, and then 
something potentially useful, maybe for Pilar's process.

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 1/8/2017 5:16 AM, Energies Naturals C.B. wrote:
> Hallo Doug,
>
> of course I have not forgotten our 1.attempt to this matter!
> But I saw that I still had to learn a lot of things before a start.
>
> Also, I was not yet retired then! Now I have a little more time AND it seems that Spain is slowly coming out of the recession!
>
> Meanwhile Pilar kind of lost hope in any realization of the project, even talking about selling the rights.
> And this brings me to the other topic you mention: Rights and patents. I am told that she holds the rights to the slate refuse process and is about to retrieve the ones about granite refuse since the "partners" she trusted in have no made any progress in 3 years,surely also due to the general depression here.
>
> Pilar has made larger objects in the past,but always in electric ovens. There is no problem in it exept for the cost of it!
> Biomass firing is- as you very well know and point out- a different thing! And it is this what I try to prove (small scale).
>
> Pilar's health has suffered and I guess I know why. I am sure I can bring her back to her former spirits. And yes, I believe in the processes!
>
> The 1-2 years time are probably right,although sometimes ( not often) things can move faster.
>
> If you say the Dasifier is capable to heat the first stage and given your experience with used firebricks,I shall now look for them and also for expertize in kiln building. Help apreciated !
>
> Greatful (?)
>
> Rolf
>
>
>
>
> On Sun, 8 Jan 2017 16:40:36 +1300
> Doug <doug.williams.nz at gmail.com> wrote:
>
>> Hi Rolf,
>>
>> I referred back into my files, and see we had quite an exchange of
>> information on this project, two on the 27/2/15,1 on 28/2/15, and the
>> last on 2/3/15, concluding it appears with a SKYPE call. If you have
>> forgotten, then please read through it all again, as nothing has changed
>> technically, and you still have to start this project without $$.
>>
>> I reply within the text.
>>
>>
>> On 07/01/17 10:54, Energies Naturals C.B. wrote:
>>> How amazing!
>>> In such a short time sooo many good ideas!
>>> And I think Doug is right:
>>>
>>> First step is a demo unit to learn with and to show the feasability of the project by baking a few test pieces.
>> You showed me some small blocks on SKYPE, has Pilar not actually made
>> any of the larger tiles?
>>> Second is a first upwards step towards a semi "serious" unit.Perhaps together with a professional ceramist.
>> Isn't Pilar a qualified ceramist? She first needs protection for her
>> process if the test firings are satisfactory, patent applications take
>> time and $$.
>>> Third would be after there is a real commercial perspective . Here comes the idea of additional charcoal production back.
>>> A more sophisticated installation, perhaps like Roland Siemons'would be great. Know how, money, investment,and partners wanted!
>> Given the time line of acquiring better firing experience, my guess is
>> that you will need 1-2 years to reach the stage of looking for
>> investment partners. This could be speeded up if you can get $$ in
>> during the first phase. Have you considered "Crowd Funding"? I see it
>> works for small high risk start-up ideas, but would need expertise to
>> ensure the Broker selection has the right credentials.
>>> I have just spoken to Pilar, the ceramist. She is recovering from a severe infect and not yet fully operational.
>>>
>>> But she tells me a 150-250 l unit, 0.5 x 0.5 x 1m could do to bake the necessary standard 300x300 x 5 mm test pieces.
>> We built a circular retort about this size back around 1983/4 and found
>> that the refractory of the walls need to be glowing at the highest
>> temperature required, before you could change from oxidizing to
>> reduction conditions. As the long term option is to use old brick kilns,
>> I suggest that you obtain bricks from an old kiln. You can then make
>> several kilns and continue firing while they cool alternately. A sheet
>> metal wrapper will hold it all in place, but I suggest that if you can
>> put a high temperature refractory wool around the bricks first, then the
>> sheet metal, it will reduce the case from glowing red hot. A top lid
>> just the same as Agua Das used is all you need for loading and observing
>> the process. Gas entry would be best into a bottom combustion chamber
>> with a brick grill.
>>
>> If you build a square kiln, you don't want a great waste of space, as
>> the glowing refractory plays a heating role, but get advise as it is not
>> within my design experience for your need.
>>
>> This is a call to any one who can provide some expertise to Rolf.
>>> A  seemingly simple Agua Das gasifier, perhaps with more sophisticated air control could perhaps work.
>>> Brass smelts at roughly 1200 °C, quite similar to the 1300 we need.
>> It's about as simple as you can get but needs scaling up to possibly 3-4
>> times as show, speeding up the heating times of the loaded kiln, and
>> possibly allowing a bigger kiln to be used. It does however need
>> compressed air for the very important injector nozzle, so Paul will have
>> to work out some details for you. I can tell you from experience, that
>> 1,300C is obtainable, because we has glass furnaces able to get the
>> first melt at 1,350C. As I said, measuring the temperatures needs
>> specialized Pyrometers.
>>> I guess I can find a siutable kiln and convert it to gas. I have never done this, so any hint and help is welcome!
>>>
>>> The next step is building the right kind and size of gasifier. Next the burner(s), matching both gasifier and kiln the kiln.
>> I think Paul will be able to supply all you need to know about the
>> gasifier, and as you see from the AD demonstration, no burner is
>> required as it burns like a jet flame, but must impinge onto the
>> refractory of the combustion chamber.
>>
>> Have you enough confidence to start, or what else will you need?
>>
>> Doug W.
>>
>>
>>
>>
>>
>>
>