[Gasification] Smoke from biomass pyramid

[David Coote]

Thanks, Tom. By relatively dry I'm guessing you mean down around 25-30% MC?

I would love to see some photos if you have them

Thanks

David


> ------------------------------
>
> Message: 2
> Date: Wed, 22 Feb 2012 18:50:10 -0500
> From: Tom<tombreed2010 at gmail.com>
> To: Discussion of biomass pyrolysis and gasification
> 	<gasification at lists.bioenergylists.org>
> Cc: "gasification at lists.bioenergylists.org"
> 	<gasification at lists.bioenergylists.org>
> Subject: Re: [Gasification] Charcoal conversion efficiencies
> Message-ID:<209BCC1D-1B49-49D0-BC80-EF5DE284C5F6 at gmail.com>
> Content-Type: text/plain;	charset=us-ascii
>
> Dear David
>
> Of the biomass pyramid is relatively dry, lighting on top produces a short yellow flame and very liitle smoke unlee the wind is blowing.
>
> Take some pics and post them.
>
> Tom Reed
>
> > From Tom Reed
>
> AKA
>
> Dr Thomas B Reed
> 508 353 7841
> Www.Woodgas.com
>
> On Feb 22, 2012, at 6:19 PM, David Coote<dccoote at mira.net>  wrote:
>
>    
>> Thanks, Tom. Certainly an easy technique to set up. The smoke produced might make this is a difficult technique to use in any quantity near towns in Australia.
>>
>> On this topic, can anyone point me at a good reference on charcoal making that covers for a range of approaches parameters like cost, conversion efficiency and characteristics of charcoal produced?
>>
>> Thanks
>>
>> David
>>
>>      
>>> Today's Topics:
>>>
>>>     1. CHARCOAL PYROPILE (Thomas Reed)
>>>
>>>
>>> ----------------------------------------------------------------------
>>>
>>> Message: 1
>>> Date: Tue, 21 Feb 2012 15:41:01 -0500
>>> From: Thomas Reed<tombreed2010 at gmail.com>
>>> To: Discussion of biomass pyrolysis and gasification
>>>     <gasification at lists.bioenergylists.org>
>>> Cc: Discussion of biomass pyrolysis and gasification
>>>     <gasification at lists.bioenergylists.org>
>>> Subject: [Gasification] CHARCOAL PYROPILE
>>> Message-ID:<685D838B-2DF6-4FEC-B6E2-C06B134BF2E9 at gmail.com>
>>> Content-Type: text/plain; charset="us-ascii"
>>>
>>> Dear Anand and All:
>>>
>>> Depending on the type of charcoal needed, you don't need a kiln at all.  the biomass should have a moisture content less than 20% and cut into small enough pieces so you can make a reasonably dense pile.  (If you have a pile of slash, resulting from cutting a tree down, our brush saw attachment for chain saws will cut limbs up to 2-1/2" in diameter as small as you want the charcoal pieces).
>>>
>>> If you make a pyramid of scrap biomass (sticks, twigs, chips, pellets, cobs, ...) and light it ON TOP, the cellulose will form a combustible gas, leaving about 20% charcoal from the lignin.  The top layer of charcoal will ignite the next layer, and each layer. Until allis converted to charcoal, the rising deoxygenated gases protecting the charcoal layers above.
>>>
>>> If you put wet newspaper under the pile, when the last layer is converted, the rising steam will quench the pile of charcoal. I call this a CHARCOAL PYROPILE.
>>>
>>> Depending on the moisture content of the biomass pile, the temperature of the charcoal will reach 500-700C.  I believe HughMcLaughlin said it was partially activated, but I hope he'll comment.
>>>
>>> I hope that farmers in particular will develop this method for converting waste biomass to valuable charcoal fertilizer.
>>>
>>> So no kiln needed.
>>>
>>> Tom Reed
>>>
>>>
>>>
>>>
>>>
>>> Thomas B Reed
>>>
>>>
>>>
>>>        
>>
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>
>
> ------------------------------
>
> Message: 3
> Date: Wed, 22 Feb 2012 18:58:15 -0500
> From: Jeff Davis<jeff0124 at velocity.net>
> To: Discussion of biomass pyrolysis and gasification
> 	<gasification at lists.bioenergylists.org>
> Subject: Re: [Gasification] Charcoal conversion efficiencies
> Message-ID:<1329955095.1460.10.camel at jeff-laptop>
> Content-Type: text/plain; charset="UTF-8"
>
> On Thu, 2012-02-23 at 10:19 +1100, David Coote wrote:
>    
>> On this topic, can anyone point me at a good reference on charcoal
>> making that covers for a range of approaches parameters like cost,
>> conversion efficiency and characteristics of charcoal produced?
>>      
>
> David,:
>
> COMPARING SIMPLE CHARCOAL PRODUCTION TECHNOLOGIES
> FOR THE CARIBBEAN
> <http://www.cd3wd.com/cd3wd_40/vita/charcprd/en/charcprd.htm>
>
> Simple technologies for charcoal making
> <http://www.fao.org/docrep/x5328e/x5328e00.htm>
>
> Industrial charcoal making
> <http://www.fao.org/docrep/x5555e/x5555e00.htm#Contents>
>
>
> You might need one of these:
>
> Mini Skyline
> <http://www.backwoodshome.com/articles2/deaton0601.html>
>
>
>
>
>
>
> Jeff
>
>
>
>
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>
> End of Gasification Digest, Vol 18, Issue 20
> ********************************************
>
>