Dear Greg, thanks for the tip. We have limestones of different grades in India. I can try them out. Yours A.D.Karve
On Mon, Sep 12, 2011 at 12:49 AM, Greg Manning <[email protected]> wrote: > Greetings Anand, and list members. > > Dolomitic Lime (Limestone) was used as a catalyst to reform "coalgas > (towngas)" into a much cleaner "lampgas (limegas)" that had less > energy in it, BUT was much cleaner as far as removal of tars from > coal. > > The experssion "that preformer on stage is in the "limelight"" comes > from this process, as mantel type lanterns (much like a "coalman > lantern" (camping lantern) (where the company got it's name.. > "Coalman") these footlamps where used on preforming stages prior to > electric light in the late 1800's in England and Europe. > > Dolomitic lime is a slight varient on limestone. > > I have a small sample (about 30 kg.) here, would be happy to send a 2 > or 3 kg. sample to you for experimentation. > > The limestone has to be in the direct path of the gas flow, as close > to the reactors output, (in the reactor would be the best location), > break the sample into rough chunks and insert in the hot gas path > directly below the hearth. > > If ash flow is through the limestone, then some method of cyclic > aggitation of the rocks is required. > > Regards, > Greg Manning, > Canadian Gasifier ltd. > > > > On Sun, Sep 11, 2011 at 12:41 AM, Anand Karve <[email protected]> wrote: >> 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/ >> > > > > -- > Regards, > > Greg Manning, > Brandon, Manitoba, Canada > > _______________________________________________ > 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/
