[Gasification] Tennessee company - pyrolysis biochar + hydrogen ($1.75 pe...
GFWHELL at aol.com
GFWHELL at aol.com
Wed May 14 20:09:50 CDT 2014
Technically, it is possible to salvage a considerable portion of the waste
heat which is normally discarded by an I.C.Engine to assist in the
production of methane from hot CO2 in the presence of biomass or any other hydro
carbon, The extra input of energy to assist the reaction can be in the form
of an electrical plasma which could be obtained from say a 100amp
automotive alternator. There are other issues such as N2 removal from the fuel
loop. This is the way it will go.
Sabatier reaction
>From Wikipedia, the free encyclopedia
The Sabatier reaction or Sabatier process was discovered by the French
chemist Paul Sabatier in the 1910s. It involves the reaction of hydrogen with
carbon dioxide at elevated temperatures (optimally 300–400 °C) and
pressures in the presence of a nickel catalyst to produce methane and water.
Optionally, ruthenium on alumina (aluminum oxide) makes a more efficient
catalyst. It is described by the following exothermic reaction:
CO2 + 4 H2 + energy → CH4 + 2 H2O
∆H = −165.0 kJ/mol
(some initial energy/heat is required to start the reaction)
GFWHELL
In a message dated 5/14/2014 1:57:31 P.M. Eastern Daylight Time,
adkarve at gmail.com writes:
Dear Art,
yes I agree with you, that using methane from natural gas would make
the process simpler and cheaper than using coal. Besides, using coal
would also involve getting rid of ash. Perhaps, one can produce
enough methane from agricultural and urban waste, which would make it
a carbon neutral process.
Yours
A.D.Karve
On Wed, May 14, 2014 at 12:37 PM, Art Krenzel <phoenix98604 at msn.com> wrote:
> 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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***
Dr. A.D. Karve
Trustee & Founder President, Appropriate Rural Technology Institute (ARTI)
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