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Arturo,<br>
<br>
<div class="moz-cite-prefix">On 2/27/2013 11:03 AM, Arturo
Ávalos-Longoria wrote:<br>
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<blockquote
cite="mid:CADQj2uy2qCoT4tgP20AGadb2hhmmBoBXot3_w4ZXcUEwQh3ijQ@mail.gmail.com"
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.
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[...] Any suggestion is appreciated.</blockquote>
<br>
Whatever goes in comes out. Do you know what sources of sulfur are
present at the three sites?<br>
<br>
<br>
<br>
d.
<div class="moz-signature">-- <br>
<div style="font:Georgia" ;=""><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="www.completebiogas.com">www.completebiogas.com</a></code><br>
<em>Vahid Biogas</em>, an alternative energy consultancy <code><a
href="www.vahidbiogas.com">www.vahidbiogas.com</a><br>
<br>
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<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 class="moz-txt-link-freetext" href="http://bahai.us/">http://bahai.us/</a></div>
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