Dear Darren, Jerod and All: > Has anyone established procedures for analysis of trace contaminants in gas > streams from biomass gasifiers? I am interested in either on-line or > off-line gas sampling techniques. Contaminants of interest include H2S, > COS, HCl, NH3, HCN, and alkali (K and Na). Thanks in advance! > > Jerod With such a long list of contaminants you would need to use gas chromatography or an online mass spectrometer and calibrate and check often. Plan to devote at least one many year/year of a skilled scientists time (plus another year of his bureaucratic boss plus 6 months of oversite from the EPA) to the job. And you can be sure that almost all known molecules will be there at some ppb level and we can all get excited about it. It is not surprising that the "golden age" of gasification was 1942-45 when the effort was necessity driven by the military preempting gasoline supplies. Your resident cynic... TOM REED > > -------------------------------------------------------------------------- -- > ------------- > Jerod Smeenk Phone: (515) 294-6402 > Iowa State University Fax: (515) 294-3261 > 1043 Black Engineering E-mail: jsmeenk@iastate.edu > Ames, IA 50011 > > > > - > 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 > > - 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