Dear Jim: Good question.. wish I had a complete answer. Fortunately biomass is generally low in sulfur compared to other fuels, and NO MORE sulfur can appear in the gas than was in the feedstock. That said, the organic sulfur in biomass can convert to SO2, but also H2S or COS in the carbon bed. Depending on severity, inorganic sulfur (as sulphate etc.) may or may not show up in the gas. I hope someone has a better answer than this.... TOM REED BEF GASWORKS ----- Original Message ----- From: "Jim Bland" <enecon@ozemail.com.au> To: <gasification@crest.org> Sent: Sunday, February 10, 2002 9:57 PM Subject: GAS-L: Emissions of sulfur dioxide from biomass gasification plants > Does anyone have any information on how much sulfur dioxide forms when a > woody biomass fuel is gasified? > > I have various woody fuels with 0.02% - 0.08% w/w dry basis sulfur (as > sulfides) that I wish to gasify. Does all the sulfur convert to sulfur > dioxide or other gaseous sulphur compounds, or does some convert to sulfates > and stay in the ash.? Does gasification produce less sulfur dioxide than > combustion? What influences how much sulfur dioxide is formed? > > Regards, > > Jim > > Enecon Pty. Ltd. > Level 2, 35 Whitehorse Rd., Deepdene VIC 3103, Australia > PO Box 555, Deepdene DC VIC 3103, Australia > Tel: +61-3-9817 6255 > Fax: +61-3-9817 6455 > www.enecon.com.au > > > - > Gasification List Archives: > http://www.crest.org/discussion/gasification/200202/ > > Gasification List Moderator: > Tom Reed, Biomass Energy Foundation, Reedtb2@cs.com > www.webpan.com/BEF > List-Post: <mailto:gasification@crest.org> > List-Help: <mailto:gasification-help@crest.org> > List-Unsubscribe: <mailto:gasification-unsubscribe@crest.org> > List-Subscribe: <mailto:gasification-subscribe@crest.org> > > Sponsor the Gasification List: http://www.crest.org/discuss3.html > - > Other Gasification Events and Information: > http://www.bioenergy2002.org > http://www.crest.org/articles/static/1/1010424940_7.html Bioenergy > http://www.crest.org/articles/static/1/1011975339_7.html Gasification > http://www.crest.org/articles/static/1/1011975672_7.html Carbon > - Gasification List Archives: http://www.crest.org/discussion/gasification/200202/ Gasification List Moderator: Tom Reed, Biomass Energy Foundation, Reedtb2@cs.com www.webpan.com/BEF List-Post: <mailto:gasification@crest.org> List-Help: <mailto:gasification-help@crest.org> List-Unsubscribe: <mailto:gasification-unsubscribe@crest.org> List-Subscribe: <mailto:gasification-subscribe@crest.org> Sponsor the Gasification List: http://www.crest.org/discuss3.html - Other Gasification Events and Information: http://www.bioenergy2002.org http://www.crest.org/articles/static/1/1010424940_7.html Bioenergy http://www.crest.org/articles/static/1/1011975339_7.html Gasification http://www.crest.org/articles/static/1/1011975672_7.html Carbon