So in essence you are multiplying your surface area by using the internal surfaces of the Charcoal which is a structure similar to a sponge. What size charcoal are you using?
On Wed, Oct 5, 2011 at 9:01 PM, Anand Karve <[email protected]> wrote: > Dear Wishwanathan, > we are still working on the idea. It works. We have been able to > reduce the size of the digester to 1/3. Charcoal has to be enclosed in > a net bag. It does float in the initial stages, but later it absorbs > water and becomes heavy and sinks. > Yours > A.D.Karve > > On Thu, Oct 6, 2011 at 10:30 AM, Viswanathan KS <[email protected]> > wrote: > > Dear Dr Karveji > > Your designed digestor for kitchen waste has been popular. Can this > digestor > > be made smaller and therefore cheaper and more affordable for households, > if > > it is filled with charcoal? > > Charcoal of which size is used and the quantity to be used? > > Will charcoal not tend to float in the digestor? > > > > > > On Wed, Oct 5, 2011 at 9:22 AM, Anand Karve <[email protected]> wrote: > >> > >> Dear Henry, > >> There are a lot of very simple ideas that need to be tested. I am > >> currently working on increasing the efficiency of biogas digesters and > >> feel that it might be possible to reduce the size and the capital > >> expense of a biogas system. For instance, when I filled the digester > >> with charcoal, my system accepted three times the normal daily input > >> and produced three times as much gas. > >> How much electrical energy would be required by the electric arc to > >> produce producer gas? One can perhaps achieve the same temperature > >> with paraboloid mirrors and sunlight. > >> Yours > >> A.D.Karve > >> > >> On Mon, Sep 12, 2011 at 5:52 AM, Energy7 <[email protected]> > wrote: > >> > Hi All > >> > I Hope this is not a double post ( I posted this from my I phone > earlier > >> > this morning and it has yet to show up )... > >> > > >> > Dear A.D. Karve > >> > My exact thought a while ago was to achieve this temperature with an > >> > internal electric arc furnace. The resulting gas can be put thru a > >> > catalyst. > >> > Just lately was reminded by a colleague of the efficiency of electro > >> > static > >> > precipitators and am presently researching their compatibility with > >> > producer > >> > gas. > >> > So : air tight electric arc furnace fed with co2 and preheated feed > >> > stock> > >> > catalyst>98%cyclone cleaning>precip> final water filter cooling >dryer > > > >> > co2 > >> > removal > o2 injection >ice>recycle hot co2 exhaust to preheat feed > >> > stock. > >> > Just an idea.. maybe too complicated? Please send me your ideas. > >> > HN > >> > ----- Original Message ----- From: "Anand Karve" <[email protected]> > >> > To: "Discussion of biomass pyrolysis and gasification" > >> > <[email protected]> > >> > Sent: Saturday, September 10, 2011 11:41 PM > >> > Subject: [Gasification] reducing temp. of gasification > >> > > >> > > >> >> Dear All, > >> >> one requires about 700C temperature for making producer gas. This is > >> >> generally achieved by burning the feedstock itself, for which one > >> >> introduces external air into the reactor. As a result, the producer > >> >> gas gets diluted by the nitrogen in the air. If the process can be > >> >> conducted in a closed vessel, which is heated from the outside, one > >> >> can get combustible gas without all the nitrogen, but heating the > >> >> feedstock inside a container cannot achieve the temperature that is > >> >> required for producing producer gas, so that what one gets is > >> >> primarily tar vapour. Has anyone thought of using a catalyst for > >> >> getting pyrolysis gas at say 300 C? It would help me greatly, if such > >> >> a catalyst were available. > >> >> Yours > >> >> A.D.Karve > >> >> > >> >> _______________________________________________ > >> >> 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/ > > > > > > _______________________________________________ > > 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/ > -- "A liberal is someone who feels a great debt to his fellow man, which debt he proposes to repay with your money." Skype: Joshua.bogart Emial: [email protected]
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