<html><body bgcolor="#FFFFFF"><div>Dear Nandu</div><div><br></div><div>The first four of the gases are "permanent" gases at room temperature and atmospheric pressure. Only the water condenses out. There is no fuel value in the CO2 or H2O the CO and H2 heats of combustion are 300 and the methane is 1000 Btu/ft^3.</div><div><br></div><div>Biogas comes only from the cellulose/hemicellulose CarboHydrate, CH2O fraction of biomass by anaerobic digestion according to </div><div><br></div><div>2 <span class="Apple-style-span" style="-webkit-tap-highlight-color: rgba(26, 26, 26, 0.289062); -webkit-composition-fill-color: rgba(175, 192, 227, 0.222656); -webkit-composition-frame-color: rgba(77, 128, 180, 0.222656); ">CH2O ==> CH4 + CO2</span></div><div><span class="Apple-style-span" style="-webkit-tap-highlight-color: rgba(26, 26, 26, 0.285156); -webkit-composition-fill-color: rgba(175, 192, 227, 0.21875); -webkit-composition-frame-color: rgba(77, 128, 180, 0.21875);"><br></span></div><div><span class="Apple-style-span" style="-webkit-tap-highlight-color: rgba(26, 26, 26, 0.277344); -webkit-composition-fill-color: rgba(175, 192, 227, 0.210938); -webkit-composition-frame-color: rgba(77, 128, 180, 0.210938);">And so has a Michael higher energy content than gasification gas.</span></div><div><span class="Apple-style-span" style="-webkit-tap-highlight-color: rgba(26, 26, 26, 0.273438); -webkit-composition-fill-color: rgba(175, 192, 227, 0.207031); -webkit-composition-frame-color: rgba(77, 128, 180, 0.207031);"><br></span></div><div><span class="Apple-style-span" style="-webkit-tap-highlight-color: rgba(26, 26, 26, 0.269531); -webkit-composition-fill-color: rgba(175, 192, 227, 0.203125); -webkit-composition-frame-color: rgba(77, 128, 180, 0.203125);">My regards to Priadeshina...</span></div><div><span class="Apple-style-span" style="-webkit-tap-highlight-color: rgba(26, 26, 26, 0.25); -webkit-composition-fill-color: rgba(175, 192, 227, 0.183594); -webkit-composition-frame-color: rgba(77, 128, 180, 0.183594);"><span class="Apple-style-span" style="-webkit-tap-highlight-color: rgba(26, 26, 26, 0.261719); -webkit-composition-fill-color: rgba(175, 192, 227, 0.195312); -webkit-composition-frame-color: rgba(77, 128, 180, 0.195312);"><br></span></span></div><div>Tom Reed<br><br>Dr Thomas B Reed<div>President, The Biomass Energy Foundation</div><div><a href="http://www.Woodgas.com">www.Woodgas.com</a></div></div><div><br>On Jan 24, 2011, at 4:33 PM, Anand Karve <<a href="mailto:adkarve@gmail.com">adkarve@gmail.com</a>> wrote:<br><br></div><div></div><blockquote type="cite"><div><div> </div>
<div>Does your book contain the percentage composition of the fraction that remains gaseous at room temperature (carbon dioxide, carbon monoxide, hydrogen, methane and water vapour)? It is the gaseous fraction that would serve as fuel analogous to biogas. The rest of the chemicals are most probably components of the tar, which condenses at room temperature.</div>
<div>Yours</div>
<div>A.D.Karve<br><br></div>
<div class="gmail_quote">On Mon, Jan 24, 2011 at 11:08 AM, Jeff Davis <span dir="ltr"><<a href="mailto:jeff0124@velocity.net"><a href="mailto:jeff0124@velocity.net">jeff0124@velocity.net</a></a>></span> wrote:<br>
<blockquote style="BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex" class="gmail_quote">Dear Dr. Karve,<br><br>Many variables:<br><br><<a href="http://bioweb.sungrant.org/Technical/Biopower/Technologies/Pyrolysis/Default.htm" target="_blank"><a href="http://bioweb.sungrant.org/Technical/Biopower/Technologies/Pyrolysis/Defaul">http://bioweb.sungrant.org/Technical/Biopower/Technologies/Pyrolysis/Defaul</a><br>
t.htm</a>><br><br>"Handbook of Biomass Downdraft Gasifier Engine Systems" by Dr. Tom<br><br>CO, CO2, H2, H2O, CH4 and tar vapor<br><br><br>Jeff<br><br><br><br>On Sun, 2011-01-23 at 09:24 -0800, Anand Karve wrote:<br>
> I would like to know the composition of pyrolysis gas<br><br><br><br><br>--<br>________________________________________________<br><br><a href="http://www.puffergas.com/" target="_blank"><a href="http://www.puffergas.com">www.puffergas.com</a></a><br><br>
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<br clear="all"><br>-- <br>***<br>Dr. A.D. Karve<br>President, Appropriate Rural Technology Institute (ARTI)<br><br>*Please change my email address in your records to: <a href="mailto:adkarve@gmail.com"><a href="mailto:adkarve@gmail.com">adkarve@gmail.com</a></a> *<br>
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