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<p class=MsoPlainText><span lang=EN-US>Dear Greg and the list.<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>Thank you very much for feeding back
your comments on producer gas dry cleaning.<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>My interest stems from a 500 kWe
gasifier which is going to be installed in Isla de la Juventud.<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>Initially, the commercial offer included
scrubbing producer gas with water, lately the possibility of producer gas dry
cleaning, using dolomite, showed up. I started looking for a deeper insight on
this issue and found not much, mostly from the point of view of its practical
and sustained operation and experience on this field. <o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>It gather my attention the fact that, as
a catalyst, nothing was told so far, about the dolomite generation condition. I
am supposing that some process for generating the dolomite should be in
practice. To me, producer gas dry cleaning is a good option considering that
not liquid waste would be exiting from the system.<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>As far as I could learn, the dolomite,
briefly stated, should be a powder which is introduced in the producer gas
flowing stream. Afterwards the dolomite would be separated/filtered. Dolomite
operating conditions in the gasification process and its generation/reusing
issue, has not been clear yet, to me.<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>Thanking you one more time for kindly
responding to my request.<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoPlainText>Kindest regards.<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>Oscar.<o:p></o:p></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'><o:p> </o:p></span></p>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>De:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Greg Manning
[mailto:a31ford@gmail.com] <br>
<b>Enviado el:</b> Thursday, January 31, 2013 4:55 PM<br>
<b>Para:</b> oscar@cubaenergia.cu; Discussion of biomass pyrolysis and
gasification<br>
<b>Asunto:</b> Re: [Gasification] Producer gas. Dry cleaning.<o:p></o:p></span></p>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Greetings Oscar, and list.<o:p></o:p></p>
<div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
<div>
<p class=MsoNormal>Dolomite is "Dolomitic Lime" (Limestone) we have
great pits here in Manitoba, where it is mined. I have some samples of it from
old experiments.<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><o:p> </o:p></p>
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<div>
<p class=MsoNormal>you are looking for thin slabs with the "veins" in
them, if it's just white rock, it's useless.<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
<div>
<p class=MsoNormal>You can crush the veins into small rocks about the size of
coffee beans (remove the dust and fines from the crushing), and use this in a
box that is in the outlet flow.<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
<div>
<p class=MsoNormal>The dolomite has to be HOT to do it's job. > 500° F<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
<div>
<p class=MsoNormal>Greg<o:p></o:p></p>
<div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'><o:p> </o:p></p>
<div>
<p class=MsoNormal>On Thu, Jan 31, 2013 at 7:34 AM, Oscar Jimenez <<a
href="mailto:oscar@cubaenergia.cu" target="_blank">oscar@cubaenergia.cu</a>>
wrote:<o:p></o:p></p>
<p class=MsoNormal>Dear All.<br>
<br>
Just recently I knew about the possibility of producer gas dry cleaning,<br>
using " dolomite " on commercial basis. As far as I know the dolomite
acts<br>
as catalyst, getting the producer gas free of tar. The principle seems to be<br>
rather well known, at least, such effect was known long ago. However I would<br>
like to precise how commercial is it.<br>
Comments would be greatly appreciated.<br>
<br>
Thanking you in advance.<br>
<br>
Kindest regards.<br>
<br>
Oscar.<br>
<br>
<br>
-----Mensaje original-----<br>
De: Gasification [mailto:<a
href="mailto:gasification-bounces@lists.bioenergylists.org">gasification-bounces@lists.bioenergylists.org</a>]
En<br>
nombre de jim mason<br>
Enviado el: Thursday, January 31, 2013 2:05 AM<br>
Para: Discussion of biomass pyrolysis and gasification<br>
Asunto: Re: [Gasification] Spanner<br>
<br>
i haven't seen one in person, but when we did the workshop in germany<br>
they were highly spoken of and considered one of the most<br>
accomplished. the pictures have always looked impressive and the<br>
company seems with lots of history and talent. the price point seems<br>
tolerable in germany, but a challenge for elsewhere.<br>
<br>
j<br>
<br>
<br>
<br>
On Wed, Jan 30, 2013 at 8:25 AM, Tom Miles <<a
href="mailto:tmiles@trmiles.com">tmiles@trmiles.com</a>> wrote:<br>
> Thanks Phil. I think that would be the first one in Canada unless Borealis<br>
> has a demo somewhere<br>
><br>
> Regards,<br>
><br>
> Tom<br>
><br>
> -----Original Message-----<br>
> From: Gasification [mailto:<a
href="mailto:gasification-bounces@lists.bioenergylists.org">gasification-bounces@lists.bioenergylists.org</a>]<br>
On<br>
> Behalf Of Phil Marsh<br>
> Sent: Wednesday, January 30, 2013 7:46 AM<br>
> To: 'Discussion of biomass pyrolysis and gasification'<br>
> Subject: Re: [Gasification] Spanner<br>
><br>
> Tom:<br>
><br>
> You might want to check with the BC Bioenergy Network (Michael Weedon). I<br>
> believe they have chosen the Spanner system for a small scale test at a<br>
> community in Northern BC.<br>
><br>
> Phil Marsh<br>
> Marshbros.<br>
> <a href="tel:250%20569-7858">250 569-7858</a><br>
><br>
> -----Original Message-----<br>
> From: Gasification [mailto:<a
href="mailto:gasification-bounces@lists.bioenergylists.org">gasification-bounces@lists.bioenergylists.org</a>]<br>
On<br>
> Behalf Of Tom Miles<br>
> Sent: January-30-13 12:03 AM<br>
> To: 'Discussion of biomass pyrolysis and gasification'<br>
> Subject: Re: [Gasification] Spanner<br>
><br>
> Fredrik,<br>
><br>
> It's good to hear from you. And many thanks for the report on the Spanner.<br>
><br>
> I have found some reports on the performance of the Spanner gasifiers. If<br>
> the it operates reliably then it might be worthwhile considering. It is<br>
> encouraging to hear that so many are in use. University of North Dakota<br>
> (EERC) developed a 100 kWe gasifier with a reactor that sounds very<br>
similar<br>
> in concept to the Spanner. It seemed to work well on wood. They built a<br>
> couple of them but the economics were not favorable so I do not think they<br>
> are being used.<br>
><br>
> I have seen that the 30 kWe Spanner gasifier is about EUR 130,000 and the<br>
40<br>
> kWe/100 kWth unit is about EUR 140,000 (USD 189,000). If you add another<br>
EUR<br>
> 70,000 (USD 95,000) for the feed system, heat distribution, and switchgear<br>
> then it is a fairly expensive heater and generator at about EUR 210,000<br>
(USD<br>
> 284,000).<br>
><br>
> We have a similar situation in most of the US where the only real savings<br>
is<br>
> by not consuming from the grid. Even through there are public incentives<br>
for<br>
> small generators the utilities discourage small generation through high<br>
> connection costs and other high service fees.<br>
><br>
> The economics are favorable in the remote villages in Alaska and British<br>
> Columbia. The Alaskan sawmill where we installed a 20 kWe gasifier
pays<br>
> about EUR 496/kWe (USD 670/MWh) for diesel generated power. We estimated<br>
> that we could generate power with the gasifier for about EUR 296/kWh (USD<br>
> 400/kWh). A consumer in a larger town pays about EUR 326/kWh (USD<br>
440/kWh).<br>
> We estimated that we could generate 1 MWe power for about EUR 178 (USD<br>
> 240/kWh) with public subsidy for a small (2 MWe) steam system but<br>
gasifiers<br>
> at the 2 MWe scale were too expensive.<br>
><br>
> All the best,<br>
><br>
> Tom<br>
><br>
><br>
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<br>
--<br>
<br>
<br>
<br>
Jim Mason<br>
Website: <a href="http://www.whatiamupto.com" target="_blank">http://www.whatiamupto.com</a><br>
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