GAS-L: (Fwd) Re: GAS-L: Trace contaminant analysis is producer gas

[W.deJong@wbmt.tudelft.nl]

Dear Jerod,

At TU Delft (section Thermal Power Engineering) we quantify COS, 
NH3, HCN and HCl in biomass gasification product gas from a 
pressurised fluidised bed gasifier by off-line FTIR analysis with a 2 
m optical hot gas cell (ca. 150 °C) and a resolution of 0.125 cm^-1. 
Details of spectra etc. can be found in the PhD thesis of Peter 
Hoppesteyn. We could not analyse H2S with FTIR analysis, as 
there is too much spectral overlap with CO2 peaks. Therefore, we 
used an on-line 'lead-acetate papertape' instrument from Maihak. 
Alkali metals were sampled with hot ceramic probes (including 
ceramic cyclone + filter) and wet trapping in acid solution.

with best regards,

Wiebren 


> 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
> 
> --------------------------------------------------------------------
> -- ------------------- Jerod Smeenk                    Phone:  (515)
> 294-6402 Iowa State University                   Fax:  (515)
> 294-3261 1043 Black Engineering          E-mail: jsmeenk@iastate.edu
> Ames, IA 50011
> 
------- End of forwarded message -------
Wiebren de Jong, MSc.
TU Delft
Faculty of Mechanical Engineering & Marine Technology
Section Thermal Power Engineering (EV)
Mekelweg 2
NL-2628 CD  Delft
The Netherlands
Telephone: +31 15 2789476
Mobile: +31 6 51236425
Telefax: +31 15 2782460
e-mail at home: wkdejong@kabelfoon.nl
e-mail general: wiebrendejong@hotmail.com

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