[Gasification] power generation though biomass gasifier

[Ed Woolsey]

Dear Sandeep,

I'm sure that many on the list would be interested in your findings on
this matter.
While Dr. Reed has outlined the conventional thinking (likely correct)
on the matter, I would be very interested in seeing someone try
co-firing a liquid fuel with the biomass.  The liquid fuel could be
bio-diesel, ethanol, diesel, methanol, or the like.  I don't know of
anyone to date that has done serious evaluations of this possibility.

The thought is that by trickling some uncertain amount of a liquid
fuel/solvent into the hot gas stream or even onto the fuel prior to
gasification, you might reduce or eliminate the hot tar precipitates
and/or their sticky nature that gums up valves, valve guides, lifters
and the like.  A solution along these lines might be workable and proven
on small scale engine-gen sets and at some point, if proven to any
extent, might be scaled to larger systems, that will then gain the
attention of the more mainstream research and funding community.

Ed
Iowa




-----Original Message-----
From: gasification-bounces at listserv.repp.org
[mailto:gasification-bounces at listserv.repp.org] On Behalf Of Thomas Reed
Sent: Sunday, June 25, 2006 6:39 AM
To: sandeep agrawal
Cc: Gasification at listserv.repp.org
Subject: Re: [Gasification] power generation though biomass gasifier

Dear Sandeep:

Tars are the Achilles Heel of gasification.  The first half of our 
"Handbook of BIomass Downdraft Gasifier Engine Systems" outlines the 
theory and practice of downdraft gasifiers.  The second half deals with 
filtering out tars and particulates and connecting to engines.  
(Available at our website, www.woodgas.com). 

The best way to deal with the tars is to destroy them in the gasifier 
itself and there are a few gasifiers that do that pretty well.  We are 
improving that and will announce more when we are satisfied. 

Yours truly,

TOM REED            BEF

sandeep agrawal wrote:
> i have installed a downdraft producer gas gasifier 125kWe coupled with
s.i. engine converted and modify for genset application.
>   the genset is working perfectly all right even on variable loads but
the only problem is tar which is coming out with gas even after
cooling&cleaning.
>   if some body could help in this matter i will be grateful email is
>   nath_ecogen at yahoo.co.in.
>   sandeep k. agrawal
>
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