[Gasification] Power Pallet

[Mark Ludlow]

Refreshingly forthcoming and honest response Jim. That's the
way to build trust!

Mark

-----Original Message-----
From: Gasification
[mailto:gasification-bounces at lists.bioenergylists.org] On
Behalf Of jim mason
Sent: Thursday, January 31, 2013 12:02 AM
To: Discussion of biomass pyrolysis and gasification
Subject: Re: [Gasification] Power Pallet

On Wed, Jan 30, 2013 at 10:03 PM, Tom Miles
<tmiles at trmiles.com> wrote:
> In the 1980s the University of California at Davis ran a
lot of 
> engines on rice husks gasified in downdraft gasifiers.
There are many 
> rice mills powered by rice husk gasifiers today. There are
trade-offs 
> with fine fuels but it can be done.
>

yes, but remember that all that run these fuels to date are
doing so by tolerating a dirty gas non tar solving reactor,
and fighting the tar problem in the filtering.  on the low
tech end this is nearly always a water scrubbing system,
which really just moves the toxic problem somewhere else,
and actual real world running is highly unattractive.  yes,
it will work for the demo, but the ongoing issues with the
bongwater cofferdam challenges health, regulatory and
general pleasurable concerns.

everyone who actually runs these systems do not like them.
most of them call/write us wanting a small and clean system
without all this mess.  and sadly we have to tell them we
can't yet do it for their fuels.  yes, our system will "run"
rice husks, but it will not do it to a clean enough gas for
our filtering system to process.
nonetheless, the reactor will make gas from rice husks just
like these others, i just don't think that is adequate.

i would suggest that we aren't really "running a reactor on
rice husks" until we are reasonably solving the tar issues
in the reactor during the process, and not tossing them
downstream.  a open core reactor will not control the zones
and cracking conditions adequately enough to do this.  even
the multi stage air inject systems still don't get there,
though they are much better, yet still require a big
downstream filtering solution.

until you can get rid of most of the downstream filtering
system, you will not be able to deliver a full system with
reasonable use logistics and price points.  solving problems
with more complexity and more parts tends to render the end
only relevant for the government financed.  this is what
we're trying to avoid.

my biases of course . . .

j









> Tom
>
> -----Original Message-----
> From: Gasification 
> [mailto:gasification-bounces at lists.bioenergylists.org] On
Behalf Of 
> Jeff Davis
> Sent: Wednesday, January 30, 2013 9:44 PM
> To: gasification at lists.bioenergylists.org
> Subject: Re: [Gasification] Power Pallet
>
>
> Rice husks was my favorite fuel for the Gas-of-Fire 1000,
open top 
> down draft, but that was best suited for thermal
applications.
>
>
>
> Jeff
>
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-- 



Jim Mason
Website: http://www.whatiamupto.com
Current Projects:
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http://www.gekgasifier.com
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www.escapefromberkeley.com
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