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<p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:#1F497D">What a strange coincidence, while doing some wood chip gasifier research last week we observed a strong vinegar smell in the liquid condensate we were collecting after a secondary
heat exchanger, that lowered the syngas temperature to around 70 C. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:#1F497D">At the moment we are concerned about the cost of disposal for this liquid “waste” product, but now I’ll let my colleagues know about this and we’ll see if we can turn it into
a revenue stream instead to improve the project economics!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:#1F497D">Thanks!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Stoves [mailto:stoves-bounces@lists.bioenergylists.org]
<b>On Behalf Of </b>Cookswell Jikos<br>
<b>Sent:</b> January 25, 2018 11:28 PM<br>
<b>To:</b> Discussion of biomass cooking stoves<br>
<b>Subject:</b> Re: [Stoves] Charcoal ban is it the charcoal---<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Funny enough - we once showed this company, Ecofuels Kenya, how to make wood vinegar (condensed smoke from the charcoal making process) and they have certainly taken it to the next level -
<a href="https://www.aiche.org/conferences/aiche-annual-meeting/2017/proceeding/paper/sustainable-approach-green-pesticide-production-kenya-croton-megalocarpus-trees">
https://www.aiche.org/conferences/aiche-annual-meeting/2017/proceeding/paper/sustainable-approach-green-pesticide-production-kenya-croton-megalocarpus-trees</a> as they now are the lead supplier of this stuff in East African horticulture industry and make hundreds
of liters a month. <o:p></o:p></p>
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<p class="MsoNormal">They have shown that in certain cases, the smoke can be worth up to 15 times the price of the charcoal that it was made from. <o:p></o:p></p>
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<p class="MsoNormal">Best, <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Teddy <o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Arial Narrow","sans-serif"">Teddy Kinyanjui</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Arial Narrow","sans-serif"">Sustainability Director</span><o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><img border="0" width="200" height="100" id="_x0000_i1025" src="https://lh3.googleusercontent.com/-3YUMG1TTODQ/Wh6o8gWfRmI/AAAAAAAAAyw/1bp5qqpvmwQwg5JXqL7hz-OLGSx5nSEXgCK8BGAs/s512/TK%2BEmail%2BLogo.jpg"><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Arial Narrow","sans-serif""> <a href="https://www.facebook.com/CookswellJikos" target="_blank"><span style="text-decoration:none"><img border="0" id="_x0000_i1026" src="https://images2.imgbox.com/97/28/BgG0H6ZN_o.png"></span></a> <a href="https://www.instagram.com/cookswelljikos" target="_blank"><span style="text-decoration:none"><img border="0" id="_x0000_i1027" src="https://images2.imgbox.com/54/7e/owicmXIG_o.png"></span></a> <a href="https://twitter.com/cookswelljikos?lang=en" target="_blank"><span style="text-decoration:none"><img border="0" id="_x0000_i1028" src="https://images2.imgbox.com/64/b1/oh4tfzkH_o.png"></span></a></span><o:p></o:p></p>
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<p class="MsoNormal">On Thu, Jan 25, 2018 at 11:36 PM, Andrew Heggie <<a href="mailto:aj.heggie@gmail.com" target="_blank">aj.heggie@gmail.com</a>> wrote:<o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt">On 25 January 2018 at 06:19, Michael N Trevor <<a href="mailto:mntrevor@gmail.com">mntrevor@gmail.com</a>> wrote:<br>
> Isn't the issue is how it is made. dirty polluting deforestation.<br>
<br>
Michael I don't know the reason but Teddy's photos demonstrate lots of<br>
room for improvement in the cooking.<br>
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> Change that and you have a sustainable renewable biofuel for cooking and<br>
> syngas.<br>
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I agree the big drawback in traditional charcoal making is waste and<br>
pollution and making something from the "stranded" offgas is a worthy<br>
goal but making syngas is a long way from this. Syngas (CO+H2) would<br>
need to be made at much higher temperatures than are achieved in<br>
traditional kilns which is why the offgas is a cloudy sol containing<br>
Products of Incomplete Combustion as well as tarry droplets condensed<br>
from vapour, steam, water droplets. methane and longer chain organic<br>
species.<br>
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Andrew<br>
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