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<DIV dir=ltr align=left><SPAN class=253374720-01062011><FONT size=3><SPAN
class=Arial>Jan,</SPAN></FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=253374720-01062011><FONT size=3><SPAN
class=Arial><SPAN class=Arial>I am curious what method you selected for tar
removal. Also, <SPAN class=Arial>was the
m</SPAN></SPAN></SPAN></FONT></SPAN><SPAN class=253374720-01062011><FONT
size=3><SPAN class=Arial><SPAN class=Arial>ethanation step expensive? The
methane would make a better engine fuel than the H2 and CO but I <SPAN
class=Arial>am concerned about the cost<SPAN
class=Arial>.</SPAN></SPAN></SPAN></SPAN></FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=253374720-01062011><FONT size=3><SPAN
class=Arial><SPAN class=Arial><SPAN class=Arial><SPAN class=Arial><SPAN
class=Arial></SPAN></SPAN></SPAN></SPAN></SPAN></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=253374720-01062011><FONT size=3><SPAN
class=Arial><SPAN class=Arial><SPAN class=Arial><SPAN class=Arial><SPAN
class=Arial><SPAN class=Arial>Best
Regards,</SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></FONT></SPAN></DIV>
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<FONT size=2 face=Tahoma><B>From:</B>
gasification-bounces@lists.bioenergylists.org
[mailto:gasification-bounces@lists.bioenergylists.org] <B>On Behalf Of </B>Jan
Kopyscinski<BR><B>Sent:</B> Wednesday, June 01, 2011 1:13 PM<BR><B>To:</B>
Discussion of biomass pyrolysis and gasification<BR><B>Subject:</B> Re:
[Gasification] back to gasification<BR></FONT><BR></DIV>
<DIV></DIV>Hi Kevin,<BR><BR>I did my Phd thesis on this topic. You can find more
information
there:<BR>http://e-collection.library.ethz.ch/view/eth:1059<BR><BR>or under
www.bio-sng.com and www.biosng.com, http://www.biofuelstp.eu/bio-sng.html and on
other pages.<BR><BR>In a nut shell the process consits of:<BR>1) low
temperature steam gasification<BR>2) gas cleaning (ash, tar, H2S, ...)<BR>3)
methanation = conversion of the syngas into methan (catalytic process, mostly
Nickelcatalyst)<BR> CO + 3 H2 --> CH4 + H2O<BR> CO + H2O --> H2
+ CO2<BR><BR>If you use a different catalyst you can go for higher hydrocarbon
such as Fischer Tropsch Diesel, or Methanol, ....<BR><BR>4) Fuel upgrading =
removal of H2O, CO2<BR><BR>We at the Paul Scherrer Institute in Switzerland
(http://tpe.web.psi.ch/) investigated this process from wood to BioSNG in two
scales for more than 1000h.<BR><BR>Regards<BR><BR>Jan<BR><PRE class=moz-signature>-
Dr. sc. Jan Kopyscinski
Postdoctoral fellow
Department of Chemical and Petroleum Engineering
Schulich School of Engineering
University of Calgary
2500 University Drive NW
Calgary, Alberta, Canada T2N 1N4
Email: <A class=moz-txt-link-abbreviated href="mailto:jan.kopyscinski@ucalgary.ca">jan.kopyscinski@ucalgary.ca</A>
Phone: 001 403 2109575 </PRE><BR><BR><BR><BR><BR>
<BLOCKQUOTE
style="BORDER-LEFT: blue 2px solid; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; PADDING-TOP: 5px">
<HR>
<B>Von:</B> Kevin <kchisholm@ca.inter.net><BR><B>Gesendet:</B> May 31,
2011 5:02:24 PM<BR><B>An:</B> "Discussion of biomass pyrolysis and
gasification" <gasification@lists.bioenergylists.org><BR><B>Betreff:</B>
Re: [Gasification] back to gasification<BR><BR>
<DIV
style="BACKGROUND-COLOR: #ffffff; FONT-FAMILY: Verdana, Arial, sans-serif; FONT-SIZE: 12px">
<DIV><FONT size=2 face=Arial>Dear Jan</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=2 face=Arial>Very interesting!!</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=2 face=Arial>What steam temperature and pressure is required
to gasify wood?</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=2 face=Arial>Once one has such gas, what sort processing is
required to convert it to CH4? (That is, what temperatures, pressures,
catalysts, etc)</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=2 face=Arial>Is there any way this can be done on a small
scale?</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=2 face=Arial>Is there any way this process can be modified to
produce methanol on a small scale? If so, this would be awesome... it would
then yield a very portable liquid fuel.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=2 face=Arial>Thanks!</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=2 face=Arial>Kevin</FONT></DIV>
<BLOCKQUOTE
style="BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message -----</DIV>
<DIV
style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B>
<A title=jan.kopy@web.de href="mailto:jan.kopy@web.de">Jan
Kopyscinski</A></DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=gasification@lists.bioenergylists.org
href="mailto:gasification@lists.bioenergylists.org">Discussion of biomass
pyrolysis and gasification</A></DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Tuesday, May 31, 2011 11:30
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [Gasification] back to
gasification</DIV>
<DIV> </DIV><BR>Hi,<BR><BR>First of all, there are at least two
different types of biofuel:<BR>First Generation: agricultural
feedstock, which is converted by means of biochemical processes (i.e.,
digestion) --> Biogas<BR>Second Generation: woody biomass that is
converted via thermochemical converiosn into a producer or so-calles syngas
(Gasification).<BR>Thus, if your goal is to produce Methan or Natural Gas
substite for a gas engine or transportation fuel you have different options.
But you need to know what is your feedstock (dry , wet, digestable or not
digestable such as wood):<BR>If you have a rather dry feedstock you can go
for steam gasifiaction (no air, means no Nitrogen). The produced syngas you
can catalytilcally convert to CH4, CO2 and H2O. Prior to the methanation
process you need to remove the sulphur since it is deactivating your
catalyts. H2O and CO2 can then be removed. This process has been investiaget
by the Paul Scherrer Institiute in Switzerland (www.psi.ch and
www.bio-sng.com).<BR>Removal of nitrogen is too expensive, thus you should
avoid feeding it into your process. 2 vol% to max 5vol% N2 in the methan
rich gas is acceptable.<BR><BR>Regards,<BR><BR>Jan<BR><BR>
<BLOCKQUOTE
style="BORDER-LEFT: blue 2px solid; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; PADDING-TOP: 5px">
<HR>
<B>Von:</B> "Pannirselvam P.V"
<pannirbr@gmail.com><BR><B>Gesendet:</B> May 31, 2011 12:46:54
PM<BR><B>An:</B> "Discussion of biomass pyrolysis and gasification"
<gasification@lists.bioenergylists.org><BR><B>Betreff:</B> Re:
[Gasification] back to gasification<BR><BR>Dear A.D Karve
<DIV> </DIV>
<DIV> One of the project we have been studying
is based on the IGT,Instuite Gas technology patented
process called Biotherm , in which the wood gas or
syngqs can be passed into the biodigestor, in which CO and
Hydrogen can be converted into methane ; the NOX
.COX, SOX removed via simple known wet or dry process using
activated charcoal and lime ; the methane is then compressed.The N
can be removed as ammonia,as this can be very toxic to bio
methane bacteria; Syngas obtained via pyrogas can reduce this N2 problem
and complexity.Thus pyrogas technology has more potential than
wood gas technology</DIV>
<DIV> </DIV>
<DIV> we are studying how to make this complex process into simple
innovative process to make possible charcoal and methane
economy which is practiced in the developed country in big
scale can be made possible in developing village level
technology too in small scale ,The project is yet in design stage to
reduce CO2 to use as liquid fertilizer too increasing the
calorific valued the compressed biogas.</DIV>
<DIV> </DIV>
<DIV>Yours truely</DIV>
<DIV>Pannirselvam</DIV>
<DIV> </DIV>
<DIV><BR><BR>
<DIV class=gmail_quote>On Mon, May 30, 2011 at 11:01 PM, Anand Karve
<SPAN><<A
href="mailto:adkarve@gmail.com">adkarve@gmail.com</A>></SPAN>
wrote:<BR>
<BLOCKQUOTE
style="BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex"
class=gmail_quote>Dear List,<BR>We are already using, in India, wood gas
made from agricultural waste<BR>to run stationary internal combustion
engines. But, for using it as<BR>automobile fuel, it would have to be
filled into cylinders, for which<BR>the nitrogen in the wood gas would
have to be removed in order to<BR>reduce its bulk and to increase its
calorfiic value. Does anybody have<BR>a suggestion as to how this can be
achieved?<BR>Yours<BR>A.D.Karve<BR><BR>_______________________________________________<BR>Gasification
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