<div dir="ltr"><div>David,</div><div> </div><div>levels of H2S higer then 10.000 ppm are very intersted. </div><div>Reason for this it may be bad mixing of air and biogas. Ther must be areas with very low concentration of O2. </div>
<div> </div><div>BR</div><div> </div><div>Igor</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">2013/7/8 David <span dir="ltr"><<a href="mailto:david@h4c.org" target="_blank">david@h4c.org</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
<br>
<br>
Arturo,<br>
<br>
<div>On 2/27/2013 11:03 AM, Arturo
Ávalos-Longoria wrote:<br>
</div>
<blockquote type="cite">We are in Mexico and we install units to generate
electricity with biogas.<br>
To reduce the sulphur in the gas, we oxidyze it with good results,
mainly.<br>
But there are are 3 sites, with extremely high sulphur levels (70,
10 and 5 k ppm!) with no results. The methane levels are OK for
two sites (55-60%) and bad for one (45). If we increase the air
injection, the level drops, with a little increase of oxygen in
all sites.
<div><br>
</div>
[...] Any suggestion is appreciated.</blockquote>
<br>
Whatever goes in comes out. Do you know what sources of sulfur are
present at the three sites?<span class="HOEnZb"><font color="#888888"><br>
<br>
<br>
<br>
d.
<div>-- <br>
<div><span style="font-size:110%">David
William House<br>
</span>
<div style="padding-left:3em;font-size:80%">"The Complete
Biogas Handbook" <code><a href="http://www.completebiogas.com" target="_blank">www.completebiogas.com</a></code><br>
<em>Vahid Biogas</em>, an alternative energy consultancy <code><a href="http://www.vahidbiogas.com" target="_blank">www.vahidbiogas.com</a><br>
<br>
</code></div>
<code>
<div style="padding-left:2em">"Make no search for water.
But find thirst,<br>
And water from the very ground will burst."
<div style="padding-left:2em;font-size:80%">(Rumi, a
Persian mystic poet, quoted in <em>Delight of Hearts</em>,
p. 77) <br>
<br>
<a href="http://bahai.us/" target="_blank">http://bahai.us/</a></div>
</div>
</code></div>
</div>
</font></span></div>
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<br></blockquote></div><br><br clear="all"><br>-- <br>Igor ©krjanec<br>E-naslov: <a href="mailto:igor.skrjanec@gmail.com">igor.skrjanec@gmail.com</a><br>Skype Name: igorskrjanec<br>GSM.: +386 40 474 164
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