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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Oscar,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><br>There is a lot of literature on the use of dolomite in gasification, primarily of use in fluidized beds. Much of that work has been done since the 1980s by researchers at the University in Zaragoza, Spain. Researchers and developers in Sweden (Studsvik, Chalmers, Royal Institute etc.) had systems based on reforming gas in a secondary fluidized bed for engines and syngas. It seems to me that there has been some more recent work using dolomite in Europe and the US. It don’t know of an operating system that uses dolomite at either the industrial or small scale. <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><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Tom <o:p></o:p></span></p><p class=MsoNormal><a name="_MailEndCompose"><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></a></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Gasification [mailto:gasification-bounces@lists.bioenergylists.org] <b>On Behalf Of </b>Oscar Jimenez<br><b>Sent:</b> Friday, February 01, 2013 6:39 AM<br><b>To:</b> a31ford@gmail.com; 'Discussion of biomass pyrolysis and gasification'<br><b>Subject:</b> Re: [Gasification] Producer gas. Dry cleaning.<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoPlainText>Dear Greg and the list.<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>Thank you very much for feeding back your comments on producer gas dry cleaning.<o:p></o:p></p><p class=MsoPlainText>My interest stems from a 500 kWe gasifier which is going to be installed in Isla de la Juventud.<o:p></o:p></p><p class=MsoPlainText>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></p><p class=MsoPlainText>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></p><p class=MsoPlainText>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></p><p class=MsoPlainText>Thanking you one more time for kindly responding to my request.<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText><span lang=ES>Kindest regards.<o:p></o:p></span></p><p class=MsoPlainText><span lang=ES><o:p> </o:p></span></p><p class=MsoPlainText><span lang=ES>Oscar.<o:p></o:p></span></p><p class=MsoNormal><span lang=ES style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=ES 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 0in 0in 0in'><p class=MsoNormal><b><span lang=ES style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>De:</span></b><span lang=ES style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Greg Manning [<a href="mailto:a31ford@gmail.com">mailto:a31ford@gmail.com</a>] <br><b>Enviado el:</b> Thursday, January 31, 2013 4:55 PM<br><b>Para:</b> <a href="mailto:oscar@cubaenergia.cu">oscar@cubaenergia.cu</a>; 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><span lang=ES><o:p> </o:p></span></p><p class=MsoNormal><span lang=ES>Greetings Oscar, and list.<o:p></o:p></span></p><div><p class=MsoNormal><span lang=ES><o:p> </o:p></span></p></div><div><p class=MsoNormal><span lang=ES>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></span></p></div><div><p class=MsoNormal><span lang=ES><o:p> </o:p></span></p></div><div><p class=MsoNormal><span lang=ES>you are looking for thin slabs with the "veins" in them, if it's just white rock, it's useless.<o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=ES><o:p> </o:p></span></p></div><div><p class=MsoNormal><span lang=ES>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></span></p></div><div><p class=MsoNormal><span lang=ES><o:p> </o:p></span></p></div><div><p class=MsoNormal><span lang=ES>The dolomite has to be HOT to do it's job. > 500° F<o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=ES><o:p> </o:p></span></p></div><div><p class=MsoNormal><span lang=ES>Greg<o:p></o:p></span></p><div><p class=MsoNormal><span lang=ES><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><span lang=ES><o:p> </o:p></span></p><div><p class=MsoNormal><span lang=ES>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></span></p><p class=MsoNormal><span lang=ES>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>> _______________________________________________<br>> Gasification mailing list<br>><br>> to Send a Message to the list, use the email address<br>> <a href="mailto:Gasification@bioenergylists.org">Gasification@bioenergylists.org</a><br>><br>> to UNSUBSCRIBE or Change your List Settings use the web page<br>><br><a href="http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenerg" target="_blank">http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenerg</a><br>> <a href="http://ylists.org" target="_blank">ylists.org</a><br>><br>> for more Gasifiers, News and Information see our web site:<br>> <a href="http://gasifiers.bioenergylists.org/" target="_blank">http://gasifiers.bioenergylists.org/</a><br>><br>><br>> _______________________________________________<br>> Gasification mailing list<br>><br>> to Send a Message to the list, use the email address<br>> <a href="mailto:Gasification@bioenergylists.org">Gasification@bioenergylists.org</a><br>><br>> to UNSUBSCRIBE or Change your List Settings use the web page<br>><br><a href="http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenerg" target="_blank">http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenerg</a><br>> <a href="http://ylists.org" target="_blank">ylists.org</a><br>><br>> for more Gasifiers, News and Information see our web site:<br>> <a href="http://gasifiers.bioenergylists.org/" target="_blank">http://gasifiers.bioenergylists.org/</a><br>><br>><br>><br>><br>> _______________________________________________<br>> Gasification mailing list<br>><br>> to Send a Message to the list, use the email address<br>> <a href="mailto:Gasification@bioenergylists.org">Gasification@bioenergylists.org</a><br>><br>> to UNSUBSCRIBE or Change your List Settings use the web page<br>><br><a href="http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenerg%0d%0aylists.org" target="_blank">http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenerg<br>ylists.org</a><br>><br>> for more Gasifiers, News and Information see our web site:<br>> <a href="http://gasifiers.bioenergylists.org/" target="_blank">http://gasifiers.bioenergylists.org/</a><br><br><br><br>--<br><br><br><br>Jim Mason<br>Website: <a href="http://www.whatiamupto.com" target="_blank">http://www.whatiamupto.com</a><br>Current Projects:<br> - Gasifier Experimenters Kit (the GEK): <a href="http://www.gekgasifier.com" target="_blank">http://www.gekgasifier.com</a><br> - Escape from Berkeley alt fuels vehicle race: <a href="http://www.escapefromberkeley.com" target="_blank">www.escapefromberkeley.com</a><br> - ALL Power Labs on Twitter: <a href="http://twitter.com/allpowerlabs" target="_blank">http://twitter.com/allpowerlabs</a><br> - Shipyard Announce list:<br><a href="http://lists.spaceship.com/listinfo.cgi/icp-spaceship.com" target="_blank">http://lists.spaceship.com/listinfo.cgi/icp-spaceship.com</a><br><br>_______________________________________________<br>Gasification mailing list<br><br>to Send a Message to the list, use the email address<br><a href="mailto:Gasification@bioenergylists.org">Gasification@bioenergylists.org</a><br><br>to UNSUBSCRIBE or Change your List Settings use the web page<br><a href="http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenerg%0d%0aylists.org" target="_blank">http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenerg<br>ylists.org</a><br><br>for more Gasifiers, News and Information see our web site:<br><a href="http://gasifiers.bioenergylists.org/" target="_blank">http://gasifiers.bioenergylists.org/</a><br><br><br><br>_______________________________________________<br>Gasification mailing list<br><br>to Send a Message to the list, use the email address<br><a href="mailto:Gasification@bioenergylists.org">Gasification@bioenergylists.org</a><br><br>to UNSUBSCRIBE or Change your List Settings use the web page<br><a href="http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org" target="_blank">http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org</a><br><br>for more Gasifiers, News and Information see our web site:<br><a href="http://gasifiers.bioenergylists.org/" target="_blank">http://gasifiers.bioenergylists.org/</a><o:p></o:p></span></p></div><p class=MsoNormal><span lang=ES><o:p> </o:p></span></p></div></div></div></body></html>