All There is a considerable volume of literature in the combustion science journals on filtration combustion. It is due to chemisorption of O2 in the carbon lattice and catalytic oxidation around mineral matter.
This process has been extensively studied. Stephen Joseph On Mon, Oct 15, 2012 at 7:26 AM, Robert Lerner <[email protected]> wrote: > Hi Frank, > > I cannot answer to the "why" of spontaneous combustion of char, except to say > that yours is not a unique experience. On two separate occasions in Costa > Rica we experienced spontaneous combustion of bagged biochar, once with > moderate damage to a transport vehicle (fortunately, smoke signals were > detected before total disaster reigned). > > I searched the literature and found (apart from apocryphal tales of "human > spontaneous combustion") mostly denials of char's auto-combustability. I also > learned that US interstate transport regulations require fireproof > containment of char. > > Point is, it will likely happen again (whether or not we can divine the > "why"). Appropriate precaution advised. > > Rob Lerner > _______________________________________________ > Stoves 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/stoves_lists.bioenergylists.org > > for more Biomass Cooking Stoves, News and Information see our web site: > http://www.bioenergylists.org/ > _______________________________________________ Stoves 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/stoves_lists.bioenergylists.org for more Biomass Cooking Stoves, News and Information see our web site: http://www.bioenergylists.org/
