<html><body bgcolor="#FFFFFF"><div>Crispin</div><div><br></div><div>Rice husk MC is about 10% similar to the grain. I will get the label translated by my Japanese partners this week. </div><div><br></div><div>Kuntan (rice husk char) is so ingrained here that I don't think they attribute magic to it. We notice that Biochar is never used by itself here. It is always used in combination with compost, as a component of compost (there is a term for Biochar compost), or inoculated with microorganisms. Bamboo char is rinsed to remove alkali before use on tree roots. </div><div><br></div><div>Kuntan (rice husk char) has a major urban use in construction. It is laid down under houses to control moisture. </div><div><br></div><div>When I researched kuntan a few years ago I noticed that it was an ingredient in almost all formulations for planting crops in South Asia, especially when using effective microorganisms and bio fertilizers. </div><div><br></div><div>We don't have good numbers for rice harvest, RH use and conversion to Biochar. In the 1970's a friend who was "Mr Rice Husk" for FAO was always looking for better ways to carbonize husk for South Asia. We looked at several pyrolyzers and Gasifiers with him. </div><div><br></div><div>Dr Ogawa was encouraged by Mr Segiura to look at the relationship between charcoal and micro organisms in 1979. He talked with farmers to see how they were using char Steven Joseph said that the Australian Biochar research started in 1990. The rest of us are just catching up with an age old practice. </div><div><br></div><div>Tom</div><div>Ise, Japan</div><div><br><br>T R Miles Technical Consultants Inc.<span class="Apple-style-span" style="-webkit-tap-highlight-color: rgba(26, 26, 26, 0.296875); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); "></span><div><span class="Apple-style-span" style="-webkit-tap-highlight-color: rgba(26, 26, 26, 0.296875); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); "><a href="mailto:tmiles@trmiles.com">tmiles@trmiles.com</a></span></div><div><span class="Apple-style-span" style="-webkit-tap-highlight-color: rgba(26, 26, 26, 0.292969); -webkit-composition-fill-color: rgba(175, 192, 227, 0.226562); -webkit-composition-frame-color: rgba(77, 128, 180, 0.226562);">Sent from mobile. </span></div></div><div><br>On Sep 19, 2011, at 12:38 PM, "Crispin Pemberton-Pigott" <<a href="mailto:crispinpigott@gmail.com">crispinpigott@gmail.com</a>> wrote:<br><br></div><div></div><blockquote type="cite"><div><div class="WordSection1"><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thanks Tom for those numbers.<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">They are burning 150 kg/hr and getting 20 kg of carbon in the final result.<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Do you have any idea what the moisture content of the feedstock is?<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Do you know if the silica has any ‘medicinal’ benefit? There are people putting ground rock dust on fields and forests claiming benefits so I wondered if that was related.<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thanks<br>Crispin<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p><div><p class="MsoNormal"><span style="color:#1F497D">++++++<o:p></o:p></span></p><p class="MsoNormal">The Kansai Corporation rice husk gasifier is interesting. They feed 150 kg/hr husk at 2000 kcal/kg and get 50 kg/hr char. It is a stirred bed gasifier. Husks gasifying in the bed at about 600C. Air is added above the bed to burn the gases. Stack gas is 15% O2 so they use lots of excess air. About 30% of the heat input is recovered as hot water which is used in the bio oil process and in winter for heating. <o:p></o:p></p></div><div><p class="MsoNormal"><o:p> </o:p></p></div><div><p class="MsoNormal">I was interested in the labeling of the 10kg bags. They indicate 40% carbon and 50% silica (SiO2). They also list macro elements in MG/kg. <o:p></o:p></p></div><div><p class="MsoNormal"><o:p> </o:p></p></div></div></div></blockquote><blockquote type="cite"><div><span>_______________________________________________</span><br><span>Stoves mailing list</span><br><span></span><br><span>to Send a Message to the list, use the email address</span><br><span><a href="mailto:stoves@lists.bioenergylists.org">stoves@lists.bioenergylists.org</a></span><br><span></span><br><span>to UNSUBSCRIBE or Change your List Settings use the web page</span><br><span><a href="http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org">http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org</a></span><br><span></span><br><span>for more Biomass Cooking Stoves, News and Information see our web site:</span><br><span><a href="http://www.bioenergylists.org/">http://www.bioenergylists.org/</a></span><br><span></span><br></div></blockquote></body></html>