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<div class="moz-cite-prefix">Good going Peter. Good to see you
still at it.<br>
<br>
David Murphy.<br>
<br>
On 18/07/2013 6:00 AM, Peter & Kerry Davies wrote:<br>
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<div class="moz-cite-prefix">I wouldn't recommend burning glycerin
either.<br>
<br>
We have successfully gasified Gycerin waste from a biodiesel
plant added to wood chip without any measured toxic emissions,
indeed it produced a higher calorific value gas compared to
straight wood chip as it displaced the need for some of the
normal air as an oxygen source (thereby reducing dilution with
the normal nitrogen fraction as well as releasing more H2 from
the added gycerin itself) so would not anticipate any issues
with it as a binder in pellets where they were used in this way
(at least through our system). We will have the opportunity to
test this at least in the form of briquettes after August. The
combustion engineers present for the earlier test were all a bit
red faced at the time as I recall since they were predicting all
sorts of dire things. <br>
<br>
We are going through an EPA process at the moment to have our
system "exempted" from the need for pollution permits, starting
with clean wood waste as the benchmark but will be adding things
like plastics and glycerin (along with much more problematic
organics) in due course.<br>
<br>
The real barrier to overcome is the insistence by the ignorant
or mischievous in the environmental movement that gasification
and combustion are interchangeable terms with similar problems.
The result from a practical point of view is the cost of the
stringent emission tests required is in the order of $25,000 per
material being included where no dioxins are anticipated and
only one targeted analysis for this is included (amongst the 20
general sample tests required) to confirm, up to $150,000 should
they believe dioxins might be possible and this has to be
repeated with all 20 samples.<br>
<br>
What is amazing to us is our perpetual researcher "competitors"
in this space in Australia generally have access to significant
public grants, yet can't give a lab certified gas analysis from
their systems only a "predicted" value based on a literature
review, mostly of course citing references where the same thing
was done...<br>
<br>
Peter Davies<br>
<br>
<br>
<br>
On 18/07/2013 4:00 AM, <a moz-do-not-send="true"
class="moz-txt-link-abbreviated"
href="mailto:gasification-request@lists.bioenergylists.org">gasification-request@lists.bioenergylists.org</a>
wrote:<br>
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cite="mid:mailman.1.1374084002.26424.gasification_lists.bioenergylists.org@lists.bioenergylists.org"
type="cite">
<pre wrap="">On 7/16/2013 5:27 PM, J. Paul Villella wrote:
</pre>
<blockquote type="cite" style="color: #000000;">
<pre wrap=""><span class="moz-txt-citetags">> </span>other possible suitable binders are Long Strand Glycerines from the
<span class="moz-txt-citetags">> </span>production of Biodiesel (they burn like plastic too but need a
<span class="moz-txt-citetags">> </span>stabilizer/wick/co-burn agent )
</pre>
</blockquote>
<pre wrap="">Out of the frying pan and into the fire.
Burning glycerine produces acrolein. For some indications of its
toxicity, see Feng, Z; Hu W, Hu Y, Tang M (October 2006). "Acrolein is
a major cigarette-related lung cancer agent: Preferential binding at
p53 mutational hotspots and inhibition of DNA repair"
<a moz-do-not-send="true" class="moz-txt-link-rfc2396E" href="http://www.pnas.org/cgi/reprint/0607031103v1"><http://www.pnas.org/cgi/reprint/0607031103v1></a>. /Proceedings of the
National Academy of Sciences
<a moz-do-not-send="true" class="moz-txt-link-rfc2396E" href="http://en.wikipedia.org/wiki/Proceedings_of_the_National_Academy_of_Sciences"><http://en.wikipedia.org/wiki/Proceedings_of_the_National_Academy_of_Sciences></a>/
*103* (42): 15404--15409.
Better to compost the glycerine, make soap, or produce biogas.
d.
<div class="moz-txt-sig">--
David William House
"The Complete Biogas Handbook" <code class="moz-txt-verticalline"><span class="moz-txt-tag">|</span><a moz-do-not-send="true" class="moz-txt-link-abbreviated" href="http://www.completebiogas.com">www.completebiogas.com</a><span class="moz-txt-tag">|</span></code>
<i class="moz-txt-slash"><span class="moz-txt-tag">/</span>Vahid Biogas<span class="moz-txt-tag">/</span></i>, an alternative energy consultancy |<a moz-do-not-send="true" class="moz-txt-link-abbreviated" href="http://www.vahidbiogas.com">www.vahidbiogas.com</a>
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