Andrew, et al, you said, ... "however even commercial sized gasification units seem to discardchar with the ash, it's inevitable really as chemical reactions tend to equilibriums, if you supply just the 1kg of air needed to gasify 1kg of dry biomass then some will react all the way to produce H2O and CO2, hence some char must be left. In a simple stove we can add excess air above the 6kg needed for stoichiomentric conditions, this allows unreacted O2 to leave the system rather than unreacted C." So, anybody have any idea how much water we get as a byproduct for the gasification of X amount of biomass of any type? Can it be captured? Neal Van Milligen - Stoves List Archives and Website: http://www.crest.org/discussion/stoves/200202/ http://crest.org/discussiongroups/resources/stoves/ (Under construction) http://www.ikweb.com/enuff/public_html/Stoves.html (Original) Stoves List Moderators: Ron Larson, ronallarson@qwest.net Alex English, english@adan.kingston.net Elsen L. Karstad, elk@wananchi.com www.chardust.com List-Post: <mailto:stoves@crest.org> List-Help: <mailto:stoves-help@crest.org> List-Unsubscribe: <mailto:stoves-unsubscribe@crest.org> List-Subscribe: <mailto:stoves-subscribe@crest.org> Sponsor the Stoves List: http://www.crest.org/discuss3.html - Other Biomass Stoves Events and Information: http://www.bioenergy2002.org http://www.crest.org/articles/static/1/1010424940_7.html Bioenergy http://www.crest.org/articles/static/1/1011975339_7.html Gasification http://www.crest.org/articles/static/1/1011975672_7.html Carbon For information about CHAMBERS STOVES http://www.ikweb.com/enuff/public_html/Chamber.htm