[Gasification] indirect gasification schemes (was: Alternative energy in the nursery)

[Ron Lahat]

Jim,

I'm looking for specific gasification systems that are commercial and can
use the following resource:

1. Olive waste - left after extracting olive oil in cold process
2. Waste left from manure - following anerobic process that extracts the
Biogas

Ron


On Fri, May 2, 2008 at 11:39 AM, jim mason <jimmason at whatiamupto.com> wrote:

> one other indirect gasification effort i found recently is the MTCI which
> uses a pulse combustor internally within the steam blast fluidized bed.
> instead of transfering the heat in via sand cross recycle, the system uses
> the increased heat transfer potential of pulse combustor to do the
> transfer
> directly across the combustor wall material, placed inside the fluidized
> bed.  the inability to get the heat transfer "dense enough" to happen
> within
> the flb is part of what motivated the sand X transfer system like in the
> link above.  by externalizing the combustor and sand heating, you can use
> as
> much space as you want.  my undestanding is that a pulse combustor has
> around 4x the heat transfer rate across its walls as a constant combustion
> regime.  the resonance into the flb likely increases reaction rates inside
> the flb too.  sounds great, except for the gigantic noise of a pulse
> combustor (think pulse jet).
>
> the pulse combustor indirect gasification system is here:
> http://www.osti.gov/energycitations/product.biblio.jsp?osti_id=7162075.
>  the
> patents come up too if you search "pulse combustion indirect
> gasification".
>
> there is also an interesting summary of contemporary gasification reactors
> from a group at UCSD.  i had not seen this.  it is a nice big picture:
> http://maecourses.ucsd.edu/mae198/content/gasifier.shtml
>
> maybe the stovers should be considering the potentials of ear deafening
> pulse jets for increased heat transfer into the cassava pot . . . ;-)
>
> jim
>
>
>
>
> On Fri, May 2, 2008 at 1:10 AM, jim mason <jimmason at whatiamupto.com>
> wrote:
>
> >
> >
> > On Thu, May 1, 2008 at 10:31 PM, Tom Miles <tmiles at trmiles.com> wrote:
> >
> > > http://www.silvagas.com/
> > >
> >
> > i thought the mc neil vermont biomass plant was continuing to run on
> this
> > indirect gasification batelle reactor.  i now see it was only a demo and
> the
> > mc neil plant really runs currently as a straight combustor.  is this
> > correct?
> >
> > note that the gas out of this process is tarry and the usual downstream
> > catalyst scenarios were necessary for clean up to turbine adequate.
>  most of
> > the time they seem to just have been using the tarry gas to run the
> steam
> > boilers on the regular combustor plant.  the taylor biomass plant that
> mark
> > posted about a couple weeks ago adds a second steam reforming step after
> the
> > first to reduce the tars. http://www.taylorbiomassenergy.com/
> >
> > can anyone here summarize the effectiveness and longevity of hte
> catalysts
> > the mc neil reactor used?  the report says they "worked", but such is a
> > fungible term.  did they have solution that was acceptable for ongoing
> > operation, or still a "lab adequate" solution?  why has the take up been
> so
> > modest?
> >
> > any other assessments of this process known by those familiar with it
> > would be very interesting.
> >
> > j
> >
> >
> >
> > >
> > > >WHO KNOWS  FERCO Enterprises LLC, Norcross WEB PAGE ..
> > > >OR ANY CONTACT DETAILS ..??
> > >
> > > >H.SOZEN
> > >
> > >
> > > _______________________________________________
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> > >
> >
> >
> >
> > --
> >
> >
> --------------------------------------------------------------------------------
> > jim mason
> > website: www.whatiamupto.com
> > current project: gasifier experimenters kit (the GEK):
> > www.allpowerlabs.org/gasification/gek
> > announce list: http://lists.spaceship.com/listinfo.cgi/icp-spaceship.com
>
>
>
>
> --
>
> --------------------------------------------------------------------------------
> jim mason
> website: www.whatiamupto.com
> current project: gasifier experimenters kit (the GEK):
> www.allpowerlabs.org/gasification/gek
> announce list: http://lists.spaceship.com/listinfo.cgi/icp-spaceship.com
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