On Sat, 23 May 2015 20:36:28 +0000, Thomas wrote in message <[email protected]>:
> Tom > > The temperature in gasifier depends on a number of factors. One of > the most important is the lambda value. Some of the Others are the > water and ash content. ..which again stains the stainlessness of stainless steels and titanium, these depend on their oxide surfaces, in gasifiers easily "Pour in coal 'n ash 'n rock 'n roll!" "No problem!", "Heat it all up 2000 degrees!" "No problem!", "Remove the oxygen!" "10 minutes." > The reactivity of the fuel (particle size) should be adjusted to the > reactor principle and should largely be independent of the density of > the fuel – but can to a certain extent be influenced by the porosity. > > The ratio between char and volatiles does have an influence on > operation on a few very advanced staged gasification principles but > for most gasifiers one can not adjust lambda different in the > different reaction zones. > > Thomas > > > > > > Fra: Gasification > [mailto:[email protected]] På vegne af > Tom Reed Sendt: 23. maj 2015 20:17 Til: Discussion of biomass > pyrolysis and gasification Emne: Re: [Gasification] Difference > between Coal and biomass gasification > > Dear Thomas Koch and ALL: > > Thomas asks a very interesting question. Best answer would be for > someone (me?) to get a batch of coal and try it. > > First, I would expect that it m i g h t burn up the gasifier. Coal > burns so much hotter than wood. But I hope the stainless steel can > stand it. > > Secondly it would burn twice as long due to the high density of the > coal and the high volatile content which could keep it from burning > up. > > I hope someone will try it and give a report. I'm on the road, but > will try it when I get home if no one else does... > > TOM REED > > Thomas B Reed > 280 Hardwick Rd > Barre, MA 01005 > 508 353 7841 > > On May 22, 2015, at 11:51 AM, Thomas Koch > <[email protected]<mailto:[email protected]>> wrote: Hi Saiteja > > That depends very much on which principle of gasifier you are using. > > If you use an entrained flow gasifier the only real difference is the > pretreatment equipment. > > Best regards > > Thomas Koch > > > > Fra: Gasification > [mailto:[email protected]] På vegne af > Saiteja Chinta Sendt: 22. maj 2015 20:28 Til: > [email protected]<mailto:[email protected]> > Emne: [Gasification] Difference between Coal and biomass gasification > > > Hi, > > I want to know what would be major design variations while designing > for gasifiers which are coal fed from that of biomass. > > Thanks > _______________________________________________ > 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.bioenergylists.org > > for more Gasifiers, News and Information see our web site: > http://gasifiers.bioenergylists.org/ -- ..med vennlig hilsen = with Kind Regards from Arnt Karlsen ...with a number of polar bear hunters in his ancestry... Scenarios always come in sets of three: best case, worst case, and just in case. _______________________________________________ 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/
