[Stoves] Bagasse Gasification

[Tom Miles]

A. Saravanakumar,

This is more appropriate to the gasification list but it also relates to
stoves.

It is always best to do your own sampling and send the samples for analysis.


ARTI is carbonizing the tops and leave, or trash, which has high percentages
of alkali. If you gasify the same tops and leaves in a tight reactor the
alkali will likely volatilize or melt.

Reg Preston is probably gasifying hand crushed cane which may not be
leached. Even so the ash content of the crushed cane is lower than in the
tops and leaves and the alkali impact may be low. He hasn't reported any
problems. 

Milled and washed cane in a sugar mill contains very low ash and very little
alkali. Ash in bagasse we have gasified is clay from soil either processed
or picked up in storing the bagasse on the ground and loading it to the
gasifier.

You can see one analysis on my website at:
http://www.trmiles.com/alkali/fuelsc5.html

I didn't find any ash elemental analyses in entries on the Phyllis database:
http://www.ecn.nl/phyllis/

There are ash elemental analyses in work by scott Turn and Charles Kinoshita
in Hawaii (HNEI), UC Davis (Bryan Jenkins) or James Joyce in Australia.
Scott did leaching tests some years ago for sugar cane tops and leaves and
banagrass.  

Tom
        



> -----Original Message-----
> From: stoves-bounces at listserv.repp.org [mailto:stoves-
> bounces at listserv.repp.org] On Behalf Of A.Saravanakumar
> Sent: Tuesday, July 24, 2007 6:07 AM
> To: stoves at listserv.repp.org
> Subject: [Stoves] Bagasse Gasification
> 
> Dear ALL,
> 
> I am working on bagasse gasification technology. I recently visited a
> sugar industry and observed the process, I got confused in some initial
> process of sugar cane processing.
> 
> My question is:
> 
> "During milling process of sugar cane does Na, K, and Ca gets leached
> or does it goes along with bagasse even after repeated hot water
> washing.
> 
> What are the percentages of Na, K and Ca for sugar cane leaching
> process?
> 
> A. Saravanakumar
> 
> 
> 
> 
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