[Gasification] SAW DUST TORCH

Thu Aug 9 11:34:07 EDT 2007

Dear colleagues; if you build an cilindrical three feet diameter by four feet high brick construction glued with clay and 9 percent of cement you can blow saw dust and others biofuels to bottomline tangencial. Chamber must be heated to bring temperature for makes gasification. In upper part appears powerful flame to use in boiler or kilns. We see it in saw mills to eliminate "wastes"(or raw materials?). 
  Cheers ;Benjamin

Rolf Uhle <energiesnaturals at gmx.de> escribió:
  Try almond shells if you can get hold of them.
If ash clogging is a problem, add some limestone (1-2 %) to the pellets.
Rolf
----- Original Message ----- 
From: "Thomas Reed" 
To: "Paul Garton" 
; "GASIFICATION" 
; ; "Robb Walt" 
; "Art Lilley" 
Sent: Thursday, August 09, 2007 3:17 PM
Subject: [Gasification] Other pellet stove fuels

Dear Paul, Tom and All:

I have tried a number of fuels in my plain vanilla pellet stove:

* Sawdust pellets are fine
* Cherry pits (from Travis City, MI) are OK but higher in ash
* Corn melts and has wrong A/F ratio and flicker
* Acai seeds have wrong A/F ratio. Beautiful blue flame, but flickers
* Distillers dried grain feed from Coors is high in ash and clogs
the system...

I think the high ash problem could be fixed with a "puffer" which blew
the ash off into the overflow every 30 seconds or so

Ag residues in general have 2%in standard stoves.

The A/F ratio for wood is about 1.5. For starch and carbohydrates it is
probably more, and an oxygen (lambda) sensor on the exhaust might give a
good monitoring of the flame needs. I understand that they have them in
Europe. Anyone know?
------------------------------------------------------------------------
Conventional pelleting requires VERY high pressures and strong dies.
Paper pelleting (paper mache) mostly requires lots of drying.
Torrifying might work.

Ed Burton is developing a complete set of tools for making "Chunkettes"
>from 3/4" to 1 1/2" weed tree sticks. We are experimenting with them
for gasifier application.

Comments?

Onward Tom Reed BEF/BEC

Paul Garton wrote:
> Hi Tom -
>
> I hope to retire (from I/T) within 10 years (by 55) and would like to
> pursue biomass opportunities full time, without the pressures of
> needing to make a living at it. I'm very interested in the concept of
> pelletizing native energy grasses, primarily to burn in a pellet stove
> which is capable of burning such pellets.
>
> A couple of questions:
>
> Is it really that difficult to obtain/create a mobile pelleting
> system, which can pelletize grasses on-site? What are the costs,
> challenges and complexities?
>
> Do you expect increasing availability of flexible pellet stoves which
> can accommodate grass pellets?
>
> Thanks for your time.
>
> - Paul Garton
>
> -----Original Message-----
> *From:* bioenergy-bounces at listserv.repp.org
> [mailto:bioenergy-bounces at listserv.repp.org]*On Behalf Of *Thomas Reed
> *Sent:* Wednesday, August 01, 2007 6:41 AM
> *To:* Brian Hans
> *Cc:* Bioenergy at listserv.repp.org
> *Subject:* Re: [Bioenergy] ENERGYSCAPING
>
> Dear Brian:
>
> A pelletizing plant costs a minimum of $200,000 and would have too
> big a footprint for my garage-lab.
>
> Furthermore grass pellets are high in mineral and won't burn in
> conventional pellet stoves, though they could be burned in many
> boilers.
>
> Other than that its a good idea. (Better than one could expect
> from our Department of (no) Energy, or the Deparatment of
> Agribusiness.)
>
> We could certainly convert grass pellets to agricultural carbon
> and put back in our clay soil here along with the high mineral
> content.
>
> Just pondering for now. Haven't convinced my wife yet.
>
> TOM REED BEF
> Brian Hans wrote:
>> I say grow prairie or switchgrass, pelletize it and burn it for
>> heat.
>>
>> Brian Hans
>>
>> */Richard Haard /* wrote:
>>
>> Sorry Tom
>>
>> Jatropa is a subtropical plant at best.
>>
>> It is a wonderful oil crop that grows on marginal land.
>>
>> For a lawn 'oil crop' how about soybeans or rapeseed : )
>> Anyone know a perennial plant with an oil yield. Oh yes -
>> there is Rabbitbrush a native to your area (it is an oil
>> bearing desert perennial) and also the 'oil malee' shrub
>> species from Ausieland . Not sure though how much land you
>> would need for significant production.
>>
>> My choice at our farm is willow coppice as the plant would
>> have secondary value for us as live stakes and ultimately
>> basket and furniture material.
>>
>> Interesting brainstorm topic.
>> On Jul 31, 2007, at 6:08 AM, Thomas Reed wrote:
>> DEAR ALL:
>>
>> WE ARE THINKING OF REPLACING OUR LAWN WITH "ENERGYSCAPING".
>> WOULD JATROPHA GROW IN DENVER?
>>
>> WHAT OTHER ENERGY CROPS SHOULD WE CONSIDER. (PROBABLY NOT
>> MISCANTHUS OR SWITCH GRASS, SINCE THEY WOULD BE TOO TALL TO
>> FIND THE HOUSE.)
>>
>> TOM REED BEF
>>
>>
>>
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>> 
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>>
>>
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>>
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>
> -- 
> ÐÏà¡±á
>

-- 
ÐÏà¡±á

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