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<p><font face="Liberation Sans">David,</font></p>
<p><font face="Liberation Sans"> My wife would say good on ya lad,
now make it work for us all. (economically of course) (;-)</font></p>
<p>All the best,</p>
<p>Doug Williams. <br>
</p>
<p>(Fluidyne in retirement.)<br>
</p>
<br>
<div class="moz-cite-prefix">On 23/09/18 19:28, David Pitt wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CANzjWmHEAwkyUptt2GKCa1hR4vMyKtyvw0+Vu4sRp9isEY_KRA@mail.gmail.com">
<div dir="ltr">
<div dir="ltr">
<div class="gmail_default">Gentlemen</div>
<div class="gmail_default"><br>
</div>
<div class="gmail_default">We have developed a full scale
sludge to energy gasification plant in conjunction with
Yorkshire Water in the UK. The link below has a video which
describes the plant and shows the physical set up and
operational configuration which will give you a very good
orientation to its scale and level of development.</div>
<div class="gmail_default"><br>
</div>
<div class="gmail_default"><a
href="http://www.youtube.com/watch?v=M2D3xQIpeiY"
moz-do-not-send="true">www.youtube.com/watch?v=M2D3xQIpeiY</a><br>
</div>
<div class="gmail_default"><br>
</div>
<div class="gmail_default">Be very happy to provide
further information and of course be delighted should anyone
have a potential project application they would like to
discuss.</div>
<div class="gmail_default"><br>
</div>
<div class="gmail_default">Regards</div>
<div class="gmail_extra">
<div>
<div class="gmail_signature">
<div dir="ltr">
<div>
<div dir="ltr">
<div>
<div dir="ltr">
<div>
<div dir="ltr">
<div>
<div dir="ltr">
<div>
<div dir="ltr">
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<div dir="ltr">
<p dir="ltr"><span>
<em><strong>david</strong></em></span></p>
<p dir="ltr"><em>
</em></p>
<div dir="ltr"><b>David Pitt</b></div>
<div dir="ltr"><b>Director</b></div>
<div dir="ltr"><b>Enertecgreen
Limited</b></div>
<div dir="ltr"><br>
</div>
<div dir="ltr"><b><span>M: +44
7785 230 109<br>
O: +44 1753 910321</span><br>
<a
href="http://www.enertcgreen.com"
target="_blank"
moz-do-not-send="true">www.enertecgreen.com</a></b><br>
<b>Enertecgreen Ltd
-Building 1 - Chalfont
Park - Gerrards Cross -
SL9 0BG - UK</b></div>
<p dir="ltr"><span> Please
don't print this e-mail
unless you really need to<br>
<br>
This e-mail and any
attachments are intended
only for the above
addressee(s). The email
and attachments may
contain privileged
information. If you are
not the addressee you must
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If you have received the
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delete it and kindly
notify the sender.</span></p>
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<br>
<div class="gmail_quote">On 23 September 2018 at 00:15, Tom
Miles <span dir="ltr"><<a
href="mailto:tmiles@trmiles.com" target="_blank"
moz-do-not-send="true">tmiles@trmiles.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote">
<div lang="EN-US">
<div class="gmail-m_-5733132729117330823WordSection1">
<p class="MsoNormal"><span>Biosolds are typically
gasified in combination with wood or another
bulky biomass. I think the City of Lebanon has
incorporated biosolids in their fuel mix of dry
urban wood waste. Aries Energy purchased a
fluidized bed gasifier developed for biosolids
but it is not intended for engine generation. In
about 1985 City of Los Angeles ran three
bubbling fluidized bed gasifiers on dried
digester gas. Heat was recovered in a steam
boiler. The project lasted about five years.
There have been many small scale experiments
using dried biosolids in gasifiers for engines.
I am not aware any upgrading the gas. </span></p>
<p class="MsoNormal"><span> </span></p>
<p class="MsoNormal"><span>A few years go Anaergia
Inc ran a Biogreen Energy pyrolyzer in which the
dried biosolids from an anaerobic digester were
carbonized. The pyrolysis gas was put back into
the digester using a process patented by
Washington State University. The enriched
digester gas was burned in an engine. A project
to build a larger system was announced for the
City of Los Angeles was not built. </span></p>
<p class="MsoNormal"><span> </span></p>
<p class="MsoNormal"><span>Tom</span></p>
<p class="MsoNormal"><span> </span></p>
<div>
<div>
<p class="MsoNormal"><b><span>From:</span></b><span>
Gasification <<a
href="mailto:gasification-bounces@lists.bioenergylists.org"
target="_blank" moz-do-not-send="true">gasification-bounces@lists.<wbr>bioenergylists.org</a>>
<b>On Behalf Of </b>Pedros, Philip<br>
<b>Sent:</b> Saturday, September 22, 2018
1:56 PM<br>
<b>To:</b> Discussion of biomass pyrolysis
and gasification <<a
href="mailto:gasification@lists.bioenergylists.org"
target="_blank" moz-do-not-send="true">gasification@lists.<wbr>bioenergylists.org</a>><br>
<b>Subject:</b> Re: [Gasification] Question
from Philip Pedros</span></p>
</div>
</div>
<p class="MsoNormal"> </p>
<p class="MsoNormal"><span>Mr. Williams</span></p>
<p class="MsoNormal"><span> </span></p>
<p class="MsoNormal"><span>The question was from me
and reflects my limited knowledge of
gasification, not the company’s. </span></p>
<p class="MsoNormal"><span> </span></p>
<p class="MsoNormal"><span>I did not ask about
digester gas being used to generate power, nor
am I aware of digester gas being referred to as
syngas, as your statement implies. Apparently I
should have stated that the feed stock to the
gasifier was thermally dried biosolids.</span></p>
<p class="MsoNormal"><span> </span></p>
<p class="MsoNormal"><span>What I asked and what was
answered is in point 3 below. I am not aware of
syngas from a gasifier, with municipal biosolids
as the feedstock, directly fueling a CHP and was
asking if it has been done. </span></p>
<p class="MsoNormal"><span> </span></p>
<p class="MsoNormal"><span>Thank you,</span></p>
<p class="MsoNormal"><span>Philip Pedros</span></p>
<p class="MsoNormal"><span> </span></p>
<p class="MsoNormal"><span> </span></p>
<p class="MsoNormal"><span> </span></p>
<p class="MsoNormal"><span> </span></p>
<div>
<p class="MsoNormal"><span>Philip B. Pedros,
Ph.D., P.E., BCEE</span></p>
<p class="MsoNormal"><span>Technical Lead II</span></p>
<p class="MsoNormal"><span>AECOM</span></p>
<p class="MsoNormal"><span>250 Apollo Drive</span></p>
<p class="MsoNormal"><span>Chelmsford, MA 01824</span></p>
<p class="MsoNormal"><span>C: 781 258-8829</span></p>
<p class="MsoNormal"><span><a
href="mailto:Philip.Pedros@aecom.com"
target="_blank" moz-do-not-send="true"><span>Philip.Pedros@aecom.com</span></a>
</span></p>
</div>
<p class="MsoNormal"><span> </span></p>
<div>
<div>
<p class="MsoNormal"><b><span>From:</span></b><span>
Gasification [<a
href="mailto:gasification-bounces@lists.bioenergylists.org"
target="_blank" moz-do-not-send="true">mailto:gasification-bounces@<wbr>lists.bioenergylists.org</a>]
<b>On Behalf Of </b>Doug<br>
<b>Sent:</b> Saturday, September 22, 2018
4:25 PM<br>
<b>To:</b> <a
href="mailto:gasification@lists.bioenergylists.org"
target="_blank" moz-do-not-send="true">gasification@lists.<wbr>bioenergylists.org</a><br>
<b>Subject:</b> Re: [Gasification] Question
from Philip Pedros</span></p>
</div>
</div>
<p class="MsoNormal"> </p>
<p>Hi Philip,</p>
<p>Your question is really in several parts:</p>
<p>1. If you are referring to waste water containing
sewage sludge, then yes you will have the gas
present.</p>
<p>2. Untreated Sewage gas (to clarify which syngas
you are talking about) cannot be fed directly into
engines without at least a scrubber between the
gasometer storage and engine.</p>
<p>3. The gas calorific value of 120-150 Btu/scf is
perfectly adequate to run an engine and does not
need boosting.</p>
<p>4. The technology you seek is already employed at
many City Sewage plants, generating power to run
the plant.</p>
<p>5. I suggest you find working installations,
there must be quite a few in the USA.</p>
<p>Can I ask you why you or your organization think
this is by your question, unknown technology?</p>
<p>Regards,</p>
<p>Doug Williams.</p>
<p class="MsoNormal"> </p>
<div>
<p class="MsoNormal">On 23/09/18 07:49, <a
href="mailto:tmiles@trmiles.com"
target="_blank" moz-do-not-send="true">tmiles@trmiles.com</a>
wrote:</p>
</div>
<blockquote>
<p class="MsoNormal">Can untreated syngas
generated from municipal wastewater sludge be
used directly to generate power? It is my
understanding that the heating value of
untreated syngas (120 – 150 But/scf), is too low
to feed directly to engines and that some type
of post treatment to boost the heating value to
190 -200 is typically economically prohibitive.
Any information on such post treatment and an
case studies were this has been done would be
appreciated.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Thank you,</p>
<p class="MsoNormal">Philip Pedros</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Philip B. Pedros, Ph.D.,
P.E., BCEE</p>
<p class="MsoNormal">Technical Lead II</p>
<p class="MsoNormal">AECOM</p>
<p class="MsoNormal">250 Apollo Drive</p>
<p class="MsoNormal">Chelmsford, MA 01824</p>
<p class="MsoNormal">C: 781 258-8829</p>
<p class="MsoNormal"><a
href="mailto:Philip.Pedros@aecom.com"
target="_blank" moz-do-not-send="true">Philip.Pedros@aecom.com</a></p>
<p class="MsoNormal"><span> </span></p>
</blockquote>
<p class="MsoNormal"><span> </span></p>
</div>
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