[Gasification] Replacing fuel-oil with biomass

Fri Nov 10 21:33:21 CST 2006

Geoff,

We are all waiting for this. Not every transformational technology can be
implemented at the hobbyist scale. If it were easy, likely it would have
been already accomplished.

The members of this list seem to be divided between those who have an
innocent, glassy-eyed belief that there is a miraculous solution for the
looming energy (fuel) crisis and those who are in the trenches thinking
about aspect ratios of throat diameters, refining the methods of feeding
fuel into a gasifier without bridging and considering the chemistry of
specific reaction zones where useful products are generated from mundane
feed stocks.

The real excitement comes from the realization that there's a lot yet to be
learned. The sustenance that drives the community of the interested forward
may be, in part, the successes of such people as Doug Williams. Emulation,
not imitation, is the sincerest form of flattery. There's nothing much
that's easy to do that's not already been done. Roll-up your sleeves!

For me, the List is a source of both Inspiration as well as Information.
"I'm waiting to see..."---so are we all! But some pioneer has to invest a
portion of his life energy into making it all happen. My hat is off to those
folks---successful or not.

Mark

-----Original Message-----
From: gasification-bounces at listserv.repp.org
[mailto:gasification-bounces at listserv.repp.org] On Behalf Of gfwhell at aol.com
Sent: Friday, November 10, 2006 6:38 PM
To: Doug.Williams at orcon.net.nz; GASIFICATION at listserv.repp.org;
scothebuilder at hotmail.com
Subject: Re: [Gasification] Replacing fuel-oil with biomass

Im waiting to see: "Biomass replaced with fuel oil" .
Years ago gas lighting was obtained by producing water gas from crude oil.
I want to run a Gasoline engine on gas produced by a gasifier. but instead
of running the gasifier on "Biomass"
I want to produce gas by reducing scrap oil to tar free gas.I believe this
would be feasable using broken refractory material as a media replacing
CHAR. If tar is heated it could be mixed with scrap oil and turned into gas
and perhaps by passing the product through a suitable re heating process
containing copper tubing packed with copper wire. some of the gas will be
turned into Methanol. This liquid is a really convenient engine fuel.

Ultimately a gasifier which can deal with a scrap automobile tire and
re-arrange its molecules in such a way as to make a clean burnable gas is
surely going to be a winner. There is enough thermal energy trapped within
an old tire to provide the dayly requirements of an average northern home in
winter.AT present they are an expensive embarrassment. exotic uses are
always being recommended. Like drain fields, artificial reefs. or road fill.
There was a time when the coke produced by gas production was a "waste
product" and was used in the construction of rail road embankments. This
material is probably still there to this day. who is for going down the coke
mines?
Could I raise the temprature of scrap oil to boiling point where it will
vaporize and then super heat the vapor and subject it to extremey high
voltage.
I know there are some gasifier Guru,s out there who have been there ,done
that.

I hope some one will respond to these questions
Geoff

-----Original Message-----
From: Doug.Williams at orcon.net.nz
To: GASIFICATION at listserv.repp.org; scothebuilder at hotmail.com
Sent: Thu, 9 Nov 2006 10:59 PM
Subject: Re: [Gasification] Replacing fuel-oil with biomass

Hi Andy,

Thanks for taking the trouble to report interesting information, but can 
anyone
afford to add these systems to the smaller gasifiers?

>  Total engine control is the goal. Woodward Governor has gas-engine 
> control
> modules that will sense exhaust-gas oxygen, and trim excess-air at the
> mixer. Bias-fuel (rich mixture) is applied when accelerating, or not when
> slowing-down. The controller learns conditions in the cylinder to advance
> the spark event before top-center on the compression-stroke to achive
> highest cylinder-pressure at the best part of the power-stroke (a special
> microphone-thing listens for detonation). Turbo-compressor
> discharge-recirculation can also be controlled by one of these.

It sounds impressive, but I do believe a system like this would be 
challenged
using producer gas that can change calorific values in an eye blink :-)

>However,
> Woodward has no single-mixer body model specific for producer-gas.

Exactly!!!For the commercial need, this is the problem, but suppliers will
still tell you that it "should" work on producer gas. A recent purchase of a

gas
control system, cost US12,000, and yes, it failed to perform, even though 
all
the specifications were supplied. The market needs are still too small and
wide spread for any supplier to really be interested.  Plus the fact they 
have
to first work with a reliable gasifier.

If anything at all, this question is a good sample of the difficulty that 
commercial
manufacturers experience to bring their technologies to market. Very little 
off the
shelf ancillery components just fit the job, and little is known about their
reliability untill you try and use it, then it's used, and they will not 
refund your
money.

Doug Williams,
Fluidyne Gasification.

 GLRF
> (systems) has a few conceps that need to be tested, and applied, but GLRF
> has only a gasifier that makes no tar and a V-8 that took the strain on 
> the
> harness like Grandpa's Clydesdale.
>
>  I predict crude-oil price to go higher before spring. Get busy, Weld some
> metal, cut some wood, Work hard, Git'er done!
>
> Andy Schofield
> Great Lakes Renewable Fuels
>
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