Carbonizing wheat straw is a challenge. It is very low yield. The straw itself contains enough air to support smoldering combustion. While it is likely that the terra preta soils in Brazil were partly from smoldering grasses the yield in char would have been very low. Having said that it is both possible and desirable to carbonize grasses. Straw gasification is just harder to control. Some big bale size batch carbonizers have been developed in Australia. A small stale externally heated carbonizer was developed by ARTI in India.
What scale or capacity are you looking for? Our biochar bloggers on Yahoo may be helpful. Tom Miles <http://www.gasifiers.bioenergylists.org> www.gasifiers.bioenergylists.org <http://www.biochar.bioenergylists.org> www.biochar.bioenergylists.org From: Gasification [mailto:[email protected]] On Behalf Of T. GILL Sent: Thursday, April 02, 2015 7:02 PM To: Discussion of biomass pyrolysis and gasification Subject: SPAM: Re: [Gasification] newbie question... Hi All, I am looking for a design for a pyrolysis unit to convert hay (from wheat) into bio-char. Is it possible to convert the hay into bio-char with out using any external fuel such as coal or gas? Is it possible to use the hay as a fuel for slow pyrolysis. please give you feed back. Terrey Gill On Thu, Apr 2, 2015 at 12:01 PM, Jeff Davis <[email protected] <mailto:[email protected]> > wrote: I think Tom has a methane list somewhere. Maybe: http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioenergyli sts.org Pyrolysis gas can have a lot of tar in it. What is your plans for that? Jeff ______________________________________________ "Once an owner has got used to charcoal gas he will never revert to the more expensive fuels", Geo Bray On Apr 1, 2015 5:43 PM, "hugh" <[email protected] <mailto:[email protected]> > wrote: Just joined .. and have been interested in gas from wood pyrolysisfor quite a while - but also in methane from bio-digestion (small scale) .. and haven't been able to find a suitable group Does anybody have some suggestions? Cheers Hugh (Dr) Hugh Spencer Australian Tropical Research Foundation Cape Tribulation Tropical Research Station PMB 5 Cape Tribulation Qld. _______________________________________________ Gasification mailing list to Send a Message to the list, use the email address [email protected] <mailto:[email protected]> to UNSUBSCRIBE or Change your List Settings use the web page http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenerg ylists.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] <mailto:[email protected]> to UNSUBSCRIBE or Change your List Settings use the web page http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenerg ylists.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/
