"Biocoal" much like torrified wood was promoted in the 1970s by Norwegian researchers as an improved fuel for domestic heating appliances.
Tom T R Miles Technical Consultants Inc. 503-780-8185 [email protected] Sent from mobile. On Jul 17, 2012, at 8:01 AM, Anand Karve <[email protected]> wrote: > Dear Stovers, > I found it very easy to torrefy biomass, using the oven and retort system of > charcoal making. However as far as I understood the process, one does not > remove all the volatiles from the wood during the process of torrefaction. > Can we use torrefied wood in a charcoal burning stove? Would it not produce > smoke and soot? Or does one need a different type of stove for torrified > wood? > Yours > A.D.Karve > > On Tue, Jul 17, 2012 at 8:15 AM, Greg Manning <[email protected]> wrote: > Greetings Tom, Leland Jeff, Mark, List, Etc. (and anyone I missed). > > The Idea of torification is a good one, IF, (and only IF), one can also use > the byproducts of that torification process. > > I for one, am (have been) moving in this direction, as it is much easier to > control, and run a gasifier running on torified product, especially when it > comes to motive applications. > > Tom, I will be doing some tests on a 30 gallon drum (no 55's around here) > within the week or so, your idea of running it from waste heat off of an > engine is great (as long as we are only researching), I could (if one was > currently configured) run a test from a CHP generator set that would be > running off of torified wood in the first place, however, that will have to > wait. > > until then, > > Greg Manning > > > On Mon, Jul 16, 2012 at 8:22 AM, Tombreed <[email protected]> wrote: > 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 <[email protected]> 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 <[email protected]> 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 >>> >>> _______________________________________________ >>> >>> Gasification mailing list >>> >>> to Send a Message to the list, use the email address >>> [email protected] >>> >>> to UNSUBSCRIBE or Change your List Settings use the web page >>> http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org >>> >>> for more Gasifiers, News and Information see our web site: >>> http://gasifiers.bioenergylists.org/ >> >> >> _______________________________________________ >> Gasification mailing list >> >> to Send a Message to the list, use the email address >> [email protected] >> >> to UNSUBSCRIBE or Change your List Settings use the web page >> http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org >> >> for more Gasifiers, News and Information see our web site: >> http://gasifiers.bioenergylists.org/ >> >> >> _______________________________________________ >> Gasification mailing list >> >> to Send a Message to the list, use the email address >> [email protected] >> >> to UNSUBSCRIBE or Change your List Settings use the web page >> http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org >> >> for more Gasifiers, News and Information see our web site: >> http://gasifiers.bioenergylists.org/ > > > _______________________________________________ > Gasification mailing list > > to Send a Message to the list, use the email address > [email protected] > > to UNSUBSCRIBE or Change your List Settings use the web page > http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org > > for more Gasifiers, News and Information see our web site: > http://gasifiers.bioenergylists.org/ > > > > _______________________________________________ > Gasification mailing list > > to Send a Message to the list, use the email address > [email protected] > > to UNSUBSCRIBE or Change your List Settings use the web page > http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org > > for more Gasifiers, News and Information see our web site: > http://gasifiers.bioenergylists.org/ > > > > > -- > *** > Dr. A.D. Karve > Trustee & Founder President, Appropriate Rural Technology Institute (ARTI) > > > _______________________________________________ > Gasification mailing list > > to Send a Message to the list, use the email address > [email protected] > > to UNSUBSCRIBE or Change your List Settings use the web page > http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org > > for more Gasifiers, News and Information see our web site: > http://gasifiers.bioenergylists.org/
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