[Stoves] Metals in biofuels
tmiles at trmiles.com
Tue Jan 27 18:55:12 CST 2009
For evaluating potential problems for slagging and fouling in gasifiers and
combustors (e.g. stoves) we use ten elements in the ash reported as oxides:
Carbon Dioxide (CO2) is measured to estimate losses on fusion.
We measure total chloride in the fuel and of source sulfur. These elements
volatilize during combustion and can cause fusion and deposits.
You can see how we use these analyses in the report, "Alkali Deposits in
Biomass Boiler", TRM Miles 1995 lined from my website www.trmiles.com or
directly at http://www.trmiles.com/alkali/alkali.htm
Many thanks for your help with the Gasifier Experimenters Kit (GEK) at ETHOS
this weekend. It was a big distraction for Charlie to set it up but I think
it was worthwhile.
From: stoves-bounces at listserv.repp.org
[mailto:stoves-bounces at listserv.repp.org] On Behalf Of frank
Sent: Tuesday, January 27, 2009 4:35 PM
To: Discussion of biomass cooking stoves
Subject: [Stoves] Metals in biofuels
Dear Stovers, charcoal makers and brick makers,
Of the list of elements below I am wanting to know the ones that would
be of interest in regards to causing problems, volatile toxins and of
I have already added As, Cd, Pb, Zn, to my list for possible toxins.
I have added Ca, Mg, K, P for possible nutrients in left over char and ash
I have added Na, and K that may be problems in making an ash that forms
Any comments of problems or concern or interest of the following will
help me to put together a test program for testing biofuels.
Soil Control Lab
42 Hangar way
Watsonville, CA 95076
(831) 724-5422 tel
(831) 724-3188 fax
frank at compostlab.com
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