[Gasification] Tennessee company - pyrolysis biochar + hydrogen ($1.75 per gallon diesel-equivalent?)

Wed May 14 02:07:12 CDT 2014

Dr. Karve,
Being able to technically generate hydrogen using incandescent carbon in a water gas reaction does not make the process economically competitive.  Typically, the use of incandescent carbon is a batch, cyclic process which produces pulses of gases which vary in purity over each cycle
Compare the economics of using a batch feedstock which has a variable composition to one which has a very pure, low cost feedstock (CH4) day in and day out.  As a process designer, you can readily see that even through the chemistry works out to generate hydrogen using incandescent carbon, the day to day practicality of operating a multistage process with such a variable feedstock is much more difficult and more expensive.
Art 

> Date: Tue, 13 May 2014 06:34:07 +0530
> From: adkarve at gmail.com
> To: gasification at lists.bioenergylists.org
> Subject: Re: [Gasification] Tennessee company - pyrolysis biochar + hydrogen ($1.75 per gallon diesel-equivalent?)
> 
> Dear Art,
> I am not a chemist but I feel that we can also separate the hydrogen
> from water gas. India is the world's third largest producer of
> chemical fertilizers and I am quite sure that the Indian fertilizer
> producers also use natural gas as their source of hydrogen.  India
> generates annually about 800 million tonnes of agricultural waste,
> which can serve as the source to produce charcoal. This charcoal would
> have the same amount of energy as all the petroleum that we import.
> We have developed charring kilns for charring light biomass into a
> powdery charcoal. currently we briquette it and use it as domestic
> fuel. We have also made water gas from our char and demonstrated its
> use as fuel.
> Yours
> A.D.Karve
> 
> On Mon, May 12, 2014 at 10:46 AM, Greg Manning <a31ford at gmail.com> wrote:
> > Art
> >
> > Thank you for the explanation,
> >
> > I knew they used natural gas, but had no idea of the process.
> >
> > Greg Manning
> >
> >
> > On Sun, May 11, 2014 at 9:28 PM, Art Krenzel <phoenix98604 at msn.com> wrote:
> >>
> >> Dr. Karve,
> >>
> >> The Haber Bosch Process is used to convert hydrogen from natural gas and
> >> nitrogen from air into ammonia.  Yes, it is an energy intensive process.
> >>
> >> See:  http://en.wikipedia.org/wiki/Haber_process
> >>
> >> This conversion is typically conducted at 15-25 MPa (2,200-3,600 psi) or
> >> 150-250 bar and between 300-550 °C (572-1,022 °F), as the gases are passed
> >> over four beds of catalyst, with cooling between each pass so as to maintain
> >> a reasonable equilibrium constant. On each pass only about 15% conversion
> >> occurs, but any unreacted gases are recycled, and eventually an overall
> >> conversion of 97% is achieved.[1]
> >>
> >> Art Krenzel
> >>
> >>
> >>
> >>
> >> > Date: Mon, 12 May 2014 07:29:51 +0530
> >> > From: adkarve at gmail.com
> >> > To: biochar-policy at yahoogroups.com;
> >> > gasification at lists.bioenergylists.org
> >> > Subject: Re: [Gasification] Tennessee company - pyrolysis biochar +
> >> > hydrogen ($1.75 per gallon diesel-equivalent?)
> >>
> >> >
> >> > Dear Greg,
> >> > the major component of natural gas is methane. How does the fertilizer
> >> > industry separate out hydrogen from methane? The process must be
> >> > consuming a lot of energy.
> >> > Yours
> >> > A.D.Karve
> >> >
> >> > On Sun, May 11, 2014 at 9:02 AM, Anand Karve <adkarve at gmail.com> wrote:
> >> > > Dear List,
> >> > > Already in the first decade of the last century, Haber in Germany
> >> > > developed a process for making ammonia by combining nitrogen in the
> >> > > air with hydrogen. I was told that this process is used even today by
> >> > > fertilizer manufacturers. Where does the fertilizer industry get its
> >> > > hydrogen from?
> >> > > Yours
> >> > > A.D.Karve
> >> > >
> >> > > On Fri, May 9, 2014 at 8:59 PM, John Bonitz john.bonitz at gmail.com
> >> > > [biochar-policy] <biochar-policy at yahoogroups.com> wrote:
> >> > >>
> >> > >>
> >> > >> Return of the Pyromaniax: Proton Power and its hydrous pyrolysis
> >> > >> process for
> >> > >> super low-cost hydrogen, by Jim Lane, May 8, 2014
> >> > >>
> >> > >>
> >> > >> http://www.biofuelsdigest.com/bdigest/2014/05/08/return-of-the-pyromaniax-proton-power-and-its-hydrous-pyrolysis-process-for-super-low-cost-hydrogen/
> >> > >>
> >> > >>
> >> > >>
> >> > >> John Bonitz
> >> > >> Pittsboro, NC
> >> > >>
> >> > >> 919-360-2492 | LinkedIn
> >> > >>
> >> > >> ~~~~~~~~~~~~~
> >> > >>
> >> > >>
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> >> > >
> >> > >
> >> > > --
> >> > > ***
> >> > > Dr. A.D. Karve
> >> > > Trustee & Founder President, Appropriate Rural Technology Institute
> >> > > (ARTI)
> >> >
> >> >
> >> >
> >> > --
> >> > ***
> >> > Dr. A.D. Karve
> >> > Trustee & Founder President, Appropriate Rural Technology Institute
> >> > (ARTI)
> >> >
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> 
> 
> -- 
> ***
> Dr. A.D. Karve
> Trustee & Founder President, Appropriate Rural Technology Institute (ARTI)
> 
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