[Gasification] BIOCOAL - THE WOOD FUEL OF THE FUTURE

Thomas Koch tk at tke.dk
Tue Jul 17 00:11:25 CDT 2012


But it will cost 50 % of the heating value of the wood 

-----Oprindelig meddelelse-----
Fra: gasification-bounces at lists.bioenergylists.org [mailto:gasification-bounces at lists.bioenergylists.org] På vegne af linvent at aol.com
Sendt: 16. juli 2012 20:15
Til: gasification at lists.bioenergylists.org; mark at ludlow.com; mantal at hawaii.edu; artsolar at aol.com; rwalt at gocpc.com
Emne: Re: [Gasification] BIOCOAL - THE WOOD FUEL OF THE FUTURE

There is a company formed to make torrified wood. I am terrified of the prospects as it would be a lot easier to gasify wood at the site of coal use.

Sincerely,
Leland T. "Tom" Taylor
Thermogenics Inc. 


-----Original Message-----
From: Tombreed <tombreed2010 at gmail.com>
To: mark <mark at ludlow.com>; Michael Antal <mantal at hawaii.edu>; Art Lilley <artsolar at aol.com>; Robb Walt <rwalt at gocpc.com>
Cc: Discussion of biomass pyrolysis and gasification <gasification at lists.bioenergylists.org>
Sent: Mon, Jul 16, 2012 7:25 am
Subject: [Gasification] BIOCOAL - THE WOOD FUEL OF THE FUTURE

Dear Mark, Greg and all


Thanks for your good wishes, and I am now mobile with a walker.  Lots of time to pursue thermoplastics, pyrolysis and BIOCOAL.


<><><>


BIOCOAL (290-310C) is a very specific product of WOOD TORREFACTION 
(200-310C) which may become the ideal end product for wood fuel in the 
future.


Heating wood to 300C drives off all water and some excess H2O and CO2, 
giving an increase of energy content from ~ 8000 to 10,000 Btu/lb, a 
friable product easily reduced to face powder particle size for 
coal-like combustion, pelletization use, and conferring  a waterproof 
nature.  The emitted gases are combustible, and more than adequate to 
provide the process heat for roasting, crushing and briquetting. It is 
superior to coal In lacking suffer and high ash.


I wish I was younger and richer.  I believe I would jump into Biocoal 
with both feet.  Conventional COAL is such an ideal fuel in many ways, 
and Biocoal fixes the problem areas of sulfur and ash.


<><><>


Before my fall I was planning to convert a 55 gal drum of wood scrap 
into BIOCOAL.  I hope someone will try this.


At idle the exhaust of a car or truck is about 700C at several ATM 
pressure.  Two taps, before and  after the muffler should make it 
possible to withdraw a 300C stream of gas through the barrel of wood 
and heat the wood to BIOCOAL without allowing overheating.


By heating with a 300C gas, one prevents the exothermic continuing of 
the wood to charcoal at 400 C.


Looking forward to a BIOCOAL future,


Tom Reed

Thomas B Reed 



On Jul 15, 2012, at 2:59 PM, Greg Manning <a31ford at gmail.com> 
wrote:



Greetings Tom, (and list)

Tom, It's great to hear that the fall was not really bad, even though 
still an inconvenence though.


I have one question/answer I would like to pose, and that is....


Every pelletized product I've gasified, all have done the same thing, 
they expand in heat/moisture of the hearth.


 One solution I've come up with (even though it lowers the total output 
of the gasifier) is using parasitic power to run 
a torification process, instead of a partial combustion process.


All in all, when one looks to both methods of gas evolution, the later 
is a cleaner method (torification). With the losses of available mass 
for gas, when partial combustion is applied, the parasitic power 
difference, in torification is much less, (because of more mass being 
torified, instead of combusted).


Torification is a much easier method of controlling the hearth's 
internal temperature, IMO, and handles pelleted products much better, 
as it gets the moisture level to a level that does not expand the 
pellets as much (air moisture ??).




Greg Manning




On Sun, Jul 15, 2012 at 11:30 AM, Tombreed 
<tombreed2010 at gmail.com> wrote:
Dear Mark and all


Thanks so much for your warming words, twice as warming, here in the 
Fairview Recovery unit of the Worcester Memorial Hospital system.   I 
fell down 13 stairs, bound to be unlucky, BUT no permanent damage!  I'm 
recuperating in my daugher's guest suite, dreaming about a Fall cruise!
<><><>
Here's a puzzle for all to chew on.  "Gasification" of wood implies the 
complete conversion of both the cellulose (80%) and lignin (20%) 
components.  The tars from the lignin are basically aromatic due to the 
aromatic structure of lignin, and may be the principle component of the 
smoke and tar.


The primary fuel is then the cellulose smoke, various volatiles that 
burn cleanly, leaving no solids. 
My expert Friend, Mike Antal, Coral Prof. At the University of Hawaii, 
could give chapter and verse on the nature of the volatiles from 
burning celluloses.  


Paper and high cellulose paper products could be a much cleaner 
biomass fuel and are easily pelletized.  Wood pellets have become a 
major fuel source in the past decade.  Is it possible that paper 
pellets could be even more important and cleaner and cheaper?


Best wishes to all of you from Tom Reed, back from a bad fall.


Tom Reed












Thomas B Reed 




On Jul 12, 2012, at 3:42 AM, "Mark Ludlow" <a> wrote:



Dear Dr. Reed, You are a mainstay and inspiration to us all. How 
frustrating it must have been to feel yourself fall! There’s really no 
reason why the Universe chose you. It certainly was not Karma. I know 
you must feel miserable. But I hope that you know that many people love 
and admire you and are probably wishing, as I wish, that they could 
have taken that fall for you. Best wishes,Mark 



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