[Gasification] Plugflow reaction

[Tom Miles]

-----Original Message-----
From: Winfried Rijssenbeek [mailto:w.rijssenbeek at rrenergy.nl] 
Sent: Monday, April 07, 2008 1:21 AM
To: 'Discussion of biomass pyrolysis and gasification'
Cc: Winfried Rijssenbeek (Standard)
Subject: RE: [Gasification] Gasification Digest, Vol 22, Issue 6

Hey Nicolaus! 

Good to see you in this forum! I hope you still know me from the Jatropha
seminar last year? This type of blower and equipment, does it look like this
(see attached picture) Do you know the suppliers of the equipment you
described so I can contact them for the corn (maiz) dryer?


There is something else I want to share with you: I have been studying
tropical pasture (cutting 9 times a year with a production of 30 tonm /ha
/yr and with chipping it and feeding (after pretreatment) in a plugflow
reactor to make biogas for electricity and cooking. I consider it to be of
all systems, most continuous (you produce as of the first year), most simple
in growing (perfect nutrients recycling) and in conversion (biogas run
engines like Jenbacher are top) and most yielding per ha basis. Of course
other systems like KDV (the promise) or cellulosic ethanol are nice but seem
to be more large scale. 

What's your idea on it?

PS are you familiar with Suarez's efforts

-----Original Message-----
From: gasification-bounces at listserv.repp.org
[mailto:gasification-bounces at listserv.repp.org] On Behalf Of Nikolaus Foidl
Sent: zondag 6 april 2008 21:12
To: gasification at listserv.repp.org
Subject: Re: [Gasification] Gasification Digest, Vol 22, Issue 6


Reply to rolf Uhles post about a saw dust gasifier or burner.
I saw several Blower burners and made my self a small blower burner using
saw dust,pergamino from coffee and other dried and finely milled organic
materials. It is a very simple but very efficient unit, you use a common
blower and suckk in from bin on top of your burner tube a certain amunt of
sawdust blowing this mixture of air and sawdust into a burning chamber.
First you start to heat the burning chamber so the radiation sets the
incomming fine particles on fire, then you just leave the blower doing his
job. Looking from the side into the burnerchamber the air- sawdustmixture is
looking like a dieselburner flame cone and you get temperatures at the end
of the cone up to 1400 degrees celcius( pergamino from coffee beans).
There are several companies who actually sell professional build multi tube
units for brick kiln tunnels.
Best regards Nikolaus