This report by Andrés Anca-Couce focuses on a round robin of the sampling and analysis of producer gas composition from biomass gasification, including impurities. It took place in May 2019 at TUG, and was organized by Lukas von Berg and Andrés Anca-Couce.

Members from BE2020+, ECN and CERTH participated in this activity. The producer gas composition of a lab-scale fluidized bed gasifier operated continuously with steam was measured, using wood pellets and Miscanthus pellets as a fuel.

The targeted compounds to be measured were main permanent gases (H2, CO, CO2, CH4, CxHy), tars with a high interest in light tars, S-compounds (H2S, S-tars as thiophene, mercaptans, dibenzothiophene), N-compounds (NH3, HCN, N-tars as pyridine) and other compounds such as chlorine.

Several methods were employed for sampling and analysis, including continuous gas analysis, micro-GC, tar protocol (standard and with modifications from partners), SPA, FTIR or wet chemical methods (for H2S, NH3, …). Furthermore, obtained samples were distributed to BE2020+, ECN, CERTH and CENER for further analysis. Results will be made available in the following weeks.