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: [email protected] > To: [email protected] > 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 <[email protected]> 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 <[email protected]> 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: [email protected] > >> > To: [email protected]; > >> > [email protected] > >> > 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 <[email protected]> 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 [email protected] > >> > > [biochar-policy] <[email protected]> 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 > >> > >> > >> > >> ~~~~~~~~~~~~~ > >> > >> > >> > >> > >> > >> _______________________________________________ > >> > >> Gasification mailing list > >> > >> > >> > >> to Send a Message to the list, use the email address > >> > >> [email protected] > >> > >> > >> > >> to UNSUBSCRIBE or Change your List Settings use the web page > >> > >> > >> > >> http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org > >> > >> > >> > >> for more Gasifiers, News and Information see our web site: > >> > >> http://gasifiers.bioenergylists.org/ > >> > >> > >> > > > >> > > > >> > > > >> > > -- > >> > > *** > >> > > Dr. A.D. Karve > >> > > Trustee & Founder President, Appropriate Rural Technology Institute > >> > > (ARTI) > >> > > >> > > >> > > >> > -- > >> > *** > >> > Dr. A.D. Karve > >> > Trustee & Founder President, Appropriate Rural Technology Institute > >> > (ARTI) > >> > > >> > _______________________________________________ > >> > Gasification mailing list > >> > > >> > to Send a Message to the list, use the email address > >> > [email protected] > >> > > >> > to UNSUBSCRIBE or Change your List Settings use the web page > >> > > >> > http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org > >> > > >> > for more Gasifiers, News and Information see our web site: > >> > http://gasifiers.bioenergylists.org/ > >> > >> _______________________________________________ > >> Gasification mailing list > >> > >> to Send a Message to the list, use the email address > >> [email protected] > >> > >> to UNSUBSCRIBE or Change your List Settings use the web page > >> > >> http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org > >> > >> for more Gasifiers, News and Information see our web site: > >> http://gasifiers.bioenergylists.org/ > >> > > > > > > _______________________________________________ > > Gasification mailing list > > > > to Send a Message to the list, use the email address > > [email protected] > > > > to UNSUBSCRIBE or Change your List Settings use the web page > > http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org > > > > for more Gasifiers, News and Information see our web site: > > http://gasifiers.bioenergylists.org/ > > > > > > -- > *** > Dr. A.D. Karve > Trustee & Founder President, Appropriate Rural Technology Institute (ARTI) > > _______________________________________________ > Gasification mailing list > > to Send a Message to the list, use the email address > [email protected] > > to UNSUBSCRIBE or Change your List Settings use the web page > http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org > > for more Gasifiers, News and Information see our web site: > http://gasifiers.bioenergylists.org/
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