Dear Dr. Karve I second Arts assessment. Not every scheme is feasible but I really appreciate your exploration of the boundaries. I, for one, have learned much from you over the years.
Best Wishes, Mark Ludlow From: Gasification [mailto:[email protected]] On Behalf Of Art Krenzel Sent: Wednesday, May 14, 2014 6:01 PMw To: Discussion of biomass pyrolysis and gasification Subject: Re: [Gasification] Tennessee company - pyrolysis biochar + hydrogen ($1.75 per gallon diesel-equivalent?) Dr. Karve, I think you have the "People's Answer"- distributed energy made from recycled organic materials. Your work is very important to many people around the world. I salute you and your work. Art > Date: Wed, 14 May 2014 23:26:08 +0530 > From: [email protected] <mailto:[email protected]> > To: [email protected] <mailto:[email protected]> > Subject: Re: [Gasification] Tennessee company - pyrolysis biochar + hydrogen ($1.75 per gallon diesel-equivalent?) > > 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 <[email protected] <mailto:[email protected]> > 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: [email protected] <mailto:[email protected]> > >> To: [email protected] <mailto:[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] <mailto:[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] <mailto:[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] <mailto:[email protected]> > >> >> > To: [email protected] <mailto:[email protected]> ; > >> >> > [email protected] <mailto:[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] <mailto:[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] <mailto:[email protected]> > >> >> > > [biochar-policy] <[email protected] <mailto:[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-pr oton-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] <mailto:[email protected]> > >> >> > >> > >> >> > >> to UNSUBSCRIBE or Change your List Settings use the web page > >> >> > >> > >> >> > >> > >> >> > >> http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenerg ylists.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] <mailto:[email protected]> > >> >> > > >> >> > to UNSUBSCRIBE or Change your List Settings use the web page > >> >> > > >> >> > > >> >> > http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenerg ylists.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] <mailto:[email protected]> > >> >> > >> >> to UNSUBSCRIBE or Change your List Settings use the web page > >> >> > >> >> > >> >> http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenerg ylists.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] <mailto:[email protected]> > >> > > >> > to UNSUBSCRIBE or Change your List Settings use the web page > >> > > >> > http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenerg ylists.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] <mailto:[email protected]> > >> > >> to UNSUBSCRIBE or Change your List Settings use the web page > >> > >> http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenerg ylists.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] <mailto:[email protected]> > > > > to UNSUBSCRIBE or Change your List Settings use the web page > > http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenerg ylists.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] <mailto:[email protected]> > > to UNSUBSCRIBE or Change your List Settings use the web page > http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenerg ylists.org > > for more Gasifiers, News and Information see our web site: > http://gasifiers.bioenergylists.org/
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