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<DIV><FONT size=2 face=Arial>Dear Jai</FONT></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B>
<A title=jai764u@yahoo.com href="mailto:jai764u@yahoo.com">jai balwanshi</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, October 11, 2011 2:05
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [Gasification] reducing
temp. of gasification</DIV>
<DIV><BR></DIV>
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<DIV><SPAN>we have many method to reduce tar but i want which is most
simplest.</SPAN></DIV><SPAN><FONT size=2
face=Arial></FONT></SPAN></DIV><SPAN></SPAN></BLOCKQUOTE>
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<DIV><SPAN><FONT size=2 face=Arial># <FONT size=3>Your very simple, but very
important question was: "What is the simplest way to reduce tar?" I feel that
the short answer is "Burn it." </FONT></FONT></SPAN></DIV>
<DIV><SPAN><FONT face=Arial></FONT></SPAN> </DIV>
<DIV><SPAN><FONT face=Arial># Support for this simplistic answer is based on
the fact most gasifiers producing low tar woodgas seem to operate with a high
reaction zone temperature. The trick is to burn the tars evolved by pyrolysis,
while burning the least amount of char. This is accomplished in the Imbert
Style of gasifier by optimal placement and sizing of the air jets in relation
to the hearth size and location for the particular kind of fuel
employed..</FONT></SPAN></DIV>
<DIV><SPAN><FONT face=Arial></FONT></SPAN> </DIV>
<DIV><SPAN><FONT face=Arial># It would be very helpful to the List if you
would be kind enough to outline some of the many methods you have to reduce
tars.</FONT></SPAN></DIV>
<DIV><SPAN><FONT face=Arial></FONT></SPAN> </DIV>
<DIV><SPAN><FONT face=Arial># Thanks!</FONT></SPAN></DIV>
<DIV><SPAN><FONT face=Arial></FONT></SPAN> </DIV>
<DIV><SPAN><FONT face=Arial>Kevin</FONT></DIV>
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<DIV
style="BACKGROUND-COLOR: #fff; FONT-FAMILY: times new roman, new york, times, serif; COLOR: #000; FONT-SIZE: 18pt">Jai
Balwanshi<BR>Assistant Professor<BR>Mechanical Engineering Department<BR>VITS
- Indore<BR>Contact No. 9713281992<BR>
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<B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> Pete & Sheri <<A
href="mailto:spaco@baldwin-telecom.net">spaco@baldwin-telecom.net</A>><BR><B><SPAN
style="FONT-WEIGHT: bold">To:</SPAN></B> 'Discussion of biomass pyrolysis
and gasification' <<A
href="mailto:gasification@lists.bioenergylists.org">gasification@lists.bioenergylists.org</A>><BR><B><SPAN
style="FONT-WEIGHT: bold">Sent:</SPAN></B> Tuesday, 11 October 2011 8:39
AM<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re:
[Gasification] reducing temp. of gasification<BR></FONT><BR>Hello,
Greg.<BR> I know that the correct solution to tar is to keep the
reactor temp up,<BR>but, just in case,<BR>how do YOU test for tar?
<BR><BR>Pete Stanaitis<BR>-------------- <BR><BR>-----Original
Message-----<BR>From: <A
href="mailto:gasification-bounces@lists.bioenergylists.org"
ymailto="mailto:gasification-bounces@lists.bioenergylists.org">gasification-bounces@lists.bioenergylists.org</A><BR>[mailto:<A
href="mailto:gasification-bounces@lists.bioenergylists.org"
ymailto="mailto:gasification-bounces@lists.bioenergylists.org">gasification-bounces@lists.bioenergylists.org</A>]
On Behalf Of Greg<BR>Manning<BR>Sent: Monday, October 10, 2011 3:13
PM<BR>To: jai balwanshi; Discussion of biomass pyrolysis and
gasification<BR>Subject: Re: [Gasification] reducing temp. of
gasification<BR><BR>Greetings, Jai, and list members.<BR><BR>Reducing tars
in gas output, is really quite simple, design a gasifier<BR>that works
correctly for the desired feedstock is the main method,<BR>however, you can
also design a poorly built gasifier, and use many<BR>cleaning filters after
the gasifier, in the gas output pipes.<BR><BR>But really, one must
understand what "tars" are, and at what internal<BR>temperature the gasifier
runs at, once this is known, then the design<BR>can be re-designed to achive
the correct temperature to reduce the<BR>tars BEFORE they enter the gas
output area.<BR><BR>In other words, generally 2 or more gasifiers must be
built (or the<BR>original one modified) to the point of acceptable level of
tars within<BR>the gas output.<BR><BR>Greg Manning<BR>Canadian Gasifier
Ltd.<BR><BR><BR><BR><BR><BR>_______________________________________________<BR>Gasification
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