GAS-L: Batch loaded gasifiers - small ones

["Paul S. Anderson" <psanders@ilstu.edu>]

Dear Gasifiers and Stovers,

My quite simple knowledge of gasifiers leaves me with some questions.

1.  The Reed-Larson (1995) small gasifier stove and Tom Reed's "Wood-Gas 
Campstove" (and what I am doing with the Juntos gasifier stoves) are "batch 
loaded", not with continuous feed of the fuel.  Are there in the commercial 
world any batch loaded gasifiers?  If yes, a few details of a web link 
would be useful.

2.  The above named small gasifiers drive off the gases and create 
"char".  Tom's stoves (combustion units) will then in a second phase burn 
(consume) the char, leaving only ash.  But Ron Larson and I like to remove 
the batch of char, and then reload with fresh biomass fuel for more 
gasification.   Reasons:  Ron wants to save char.  I want to protect my 
fragile stove from the "forge-like" heat of the burning of the 
char.   Question:  What do the commercial gasifiers do about char 
production?  Do you consume it right on the spot, with either simultaneous 
consumption of char while gasifying other fuel OR as a second phase of the 
burning process?  Or does anyone remove the char from the gasifier, and if 
so, for what purposes?

Thanks in advance for your replies.  I hope I hear from many on the 
Gasifier list.

Paul
Paul S. Anderson, Ph.D.,  Fulbright Prof. to Mozambique 8/99 - 7/00
Rotary University Teacher Grantee to Mozambique >10 mo of 2001-2003
Dept of Geography - Geology (Box 4400), Illinois State University
Normal, IL  61790-4400   Voice:  309-438-7360;  FAX:  309-438-5310
E-mail: psanders@ilstu.edu - Internet items: www.ilstu.edu/~psanders


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