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<font size="+1"><font face="Calibri">Hi all,<br>
<br>
I recently find that the french law requires that the mass
fraction of unburned carbon that found in the final solid residu
coming from a waste gasifier should be less than 3%. If I take
wood with a ash content of 1%m as example:<br>
<br>
At the inlet of gasifier: 1000 g wood contains about 500 g C and
10 g ash.<br>
At the outlet of gasifier: 10 g ash is assumed remained in
solid, and if C% must be < 3% , --> only 0.3g carbon is
allowed in solid.<br>
<br>
This law is not applied to the gasifier treating propre wood and
agricole wastes. Even though, this law suprised me a lot. With a
single gasifier, it is possible to gasify all the carbon
contained in the initial wastes? or in the case of waste, a post
combustor should be used in order to meet this requirement.....<br>
<br>
Anyway, I'd like to know does everybody have the information of
currently running commercial plants or demontrators about<br>
<br>
1. what is the mass fraction of carbon in the solid (NOT the
ratio between C in the solid residu and C in the initial
biomass)? <br>
2. What is the feedstocks<br>
3. Does this plant use a post combustor in order to burn the
solid residu? (but in this case, it means that ash should entre
in the post combustor too?)<br>
<br>
I will be appreciated if some of you participe this discussion.<br>
<br>
Kind regards,<br>
<br>
Li Chen<br>
</font></font>
<pre class="moz-signature" cols="72">--
Dr Li CHEN
Responsable gazéification
S3d - Solutions Déchets & Développement Durable
9 rue Alfred Kastler
CS 60744
44307 Nantes Cedex 3
Tel. : +33(0)2 51 13 54 54
Mob. : +33(0)6 32 06 17 41
Fax : +33(0)2 51 13 57 65
<a class="moz-txt-link-abbreviated" href="http://www.sol3d.com">www.sol3d.com</a>
</pre>
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