[Gasification] Question: Connecting a gasifier to a microCHPunit

[Art Krenzel]

Benjamin,

Your desire to recover waste heat for the concentration of ethanol does not 
diminish the sensitivity of the heat transfer surfaces of a Stirling Cycle 
engine to contamination.  Stirling Cycle engines have their greatest success 
when used with direct solar concentrators - the cleanest fuel source.

Distillation of 30 gallons per day of ethanol sounds like a very small 
Combined Heat and Power application for a water cooled Lister style engine 
running on biogas to me.  What are you doing with the distillers solids?

Art

----- Original Message ----- 
From: "Benjamin Domingo Bof" <benjaminbof at yahoo.com.ar>
To: "Discussion of biomass pyrolysis and gasification" 
<gasification at listserv.repp.org>
Sent: Saturday, September 01, 2007 8:38 AM
Subject: Re: [Gasification] Question: Connecting a gasifier to a 
microCHPunit


Art , we are working to recover heat waste from gasifiers to produce 
ethanol. Heat is of low temperature for use in evaporate and condense 
distillates.
  We are in  the interior of São Paulo state making an four inches diameter 
12 feet long column for 30 gallon a day of ethanol 190 GL. Regards; Benjamin

Art Krenzel <phoenix98604 at msn.com> escribió:
  I support Doug's assertion that there are technical complications for the
use of producer gas in a Stirling application that require more long term
stringent gas qualities than using it in a more common internal combustion
engine.

Also, why use producer gas in an electrical conversion process that is only
8% efficient when it can be used in a 30+% efficient such as a simple diesel
engine?

Art Krenzel