I have hands on experience ( EPC and operation) on Plasma gasifiaction of Industrial hazardous waste plant of capacity 3000Kg/ hour feed. I can provide you solution for all your problems in this regards. Please contact me if you are interested.
SUNIL K RAWAL Achintya Projects & Services, 1st Floor, 60 Evershine Mall, Near Mindspace, Chincholi Bunder, Malad (west), MUMBAI 400064 INDIA Cell# 0091-9967064472 Tel;- 0091 (022)-42640020 Fax;- 0091(022)-42640021 Email; [email protected] On Sun, Feb 12, 2012 at 9:15 PM, <[email protected]> wrote: > GAsification produces an ash where the RCRA hazardous metals are bound and > inert, and pass US EPA TCLP leachate test which means that it can be put > into landfill. I am not sure how MSW can be classed as a hazardous waste as > per your language Peter. Otherwise normal landfills would also accept > hazardous waste. Metals volatilized in a normal gasifier are condensed in > the lower temperature section of the gas processing. In plasma gasification > they would coat any nearby cooler surface very rapidly, leading to > potential blockage in short order. The amount of energy put into plasma > gasification is a waste of energy as all of the desired reactions occur at > much lower temperature and it makes no thermodynamic reason to go above > those temperatures. Ash vitrification in plasma is supposedly better, but > the lower temperature and hydrogen environment of a regular gasifier > produce a stable TCLP ash anyhow. > There are direct methods of measuring metals in a gas stream. There is an > interesting study where the metal balance in a gasifier is attempted to be > determined but couldn't. More went in than came out and where the > difference occurred was never determined. > Sincerely, > Leland T. "Tom" Taylor > President > Thermogenics Inc. > > -----Original Message----- > From: jonathan <[email protected]> > To: Discussion of biomass pyrolysis and gasification <gasification@lists.* > *bioenergylists.org <[email protected]>> > Sent: Sat, Feb 11, 2012 7:39 pm > Subject: Re: [Gasification] Steam Turbines > > We can provide custom turbines; if you will forward your requirements I'll > provide you with a quote. > > Thanks, > > > Jonathan > > On Sat, Feb 11, 2012 at 3:58 PM, Peter & Kerry & > lt;[email protected]**> wrote: > Hi Liran, > > The 2 second combustion requirement is an Interesting and slightly > disturbing prescriptive regulator response (that narrows gas use options), > is somebody in authority just guessing and being cautious or is it based > around actual gas analysis results from your plasma gasification system? > > What potential constituents in the gas stream are these requirements aimed > at? > > In regard our own experience with gasifying hazardous waste (sewerage > sludge with potential heavy metal contaminants, particularly mercury & > cadmium) the client at the time for this (a large public authority) would > not pay for direct emissions testing covering these so we paid out of our > own pockets for an indirect "indicator" measurement, getting a ultimate > analysis of the raw feed stock and the same test on the ash collected from > the test run, then had a industrial chemist review the results. This showed > the metals identified in the original analysis were captured within the ash > in equivalent amounts relative to the mass reduction from the original > sample (so didn't travel out with the gas). > > Is this a problem with Plasma gasification? Are such contaminants > mobilised in the gas instead? > > We are currently engaged in the early stages of a formal testing project > involving MSW and other hazardous wastes that will have EPA oversight and > permitting for the trial. The results from this will inform pilot > commercial scale system design and operating parameters in regard to > emission management for our own system, so we are interested in what other > regulator agencies are thinking in regard general gasification issues that > might be flagged along the way. > > Otherwise we would agree with Pannierselvam's question. Certainly subject > to your gas meeting all the requirements for gas turbines (not just energy > content) then these combined with downstream HRSG steam units using this > exhaust, perhaps augmented with some auxiliary firing if needed, could be > another way to meet your regulatory requirement. > > At the moment we are unaware of any commercial fuel cells that wouldn't > require a high level of gas polishing and separation without quickly > poisoning the cell, but also would love to hear more. > > Regards, > Peter > > Peter Davies > Real Power Systems Pty Ltd > Australia > > > Steam Turbines > > Liran Dor liran at eer-pgm.com > Sat Feb 11 13:26:27 CST 2012 > Previous message: [Gasification] Steam Turbines > Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] > Dear Pannierselvam, > > Thank you for your reply > > The reason for the rankin cycle is that due to the fact we are treating > hazardous waste the environmental regulation dictate we combust the gas in > a chamber with a 2 second residence time. > > I do like your approach for the MSW application we are working on and > would like to hear more about it. > > Thanks > > Liran > > > ______________________________**_________________ > Gasification mailing list > > to Send a Message to the list, use the email address > Gasification@bioenergylists.**org <[email protected]> > > to UNSUBSCRIBE or Change your List Settings use the web page > http://lists.bioenergylists.**org/mailman/listinfo/**gasification_lists.** > bioenergylists.org<http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org> > > for more Gasifiers, News and Information see our web site: > http://gasifiers.**bioenergylists.org/___________** > ______________________________**______<http://gasifiers.bioenergylists.org/_______________________________________________> > Gasification mailing list > > to Send a Message to the list, use the email address > Gasification@bioenergylists.**org <[email protected]> > > to UNSUBSCRIBE or Change your List Settings use the web page > http://lists.bioenergylists.**org/mailman/listinfo/**gasification_lists.** > bioenergylists.org<http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org> > > for more Gasifiers, News and Information see our web site: > http://gasifiers.**bioenergylists.org/<http://gasifiers.bioenergylists.org/> > > > > > ______________________________**_________________ > Gasification mailing list > > to Send a Message to the list, use the email address > Gasification@bioenergylists.**org <[email protected]> > > to UNSUBSCRIBE or Change your List Settings use the web page > http://lists.bioenergylists.**org/mailman/listinfo/**gasification_lists.** > bioenergylists.org<http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org> > > for more Gasifiers, News and Information see our web site: > http://gasifiers.**bioenergylists.org/<http://gasifiers.bioenergylists.org/> > --
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