Tar formation in a steam-O2 blown CFB gasifier and a steam blown PBFB gasifier (BabyHPR): Comparison between different on-line measurement techniques and the off-line SPA sampling and analysis method

Two on-line tar measurement campaigns were carried out using an atmospheric pressure 100 textquotelefttextquotelefttextquoterighttextquoterightkW(th) steam-O-2 blown circulating fluidized bed (CFB) gasifier at the Delft University of Technology (TUD) and a 30-40kW(th) steam blown pressurized bubbling fluidized bed (PBFB) gasifier BabyHPR (Heatpipe Reformer) at the Technical University Munich (TUM). Agrol, willow and Dry Distillertextquoterights Grains with Solubles (DDGS) were used. An FID based on-line tar analyzer (OTA), an induced fluorescence spectroscopy (LIFS) based on-line laser instrument, and off-line solid phase adsorption (SPA) were used to quantify tar content.In general, there was a fairly good agreement between the measured results of the 10 corresponding individual tar compounds obtained from Agrol and willow CFB and PBFB atmospheric pressure tests using the SPA and LIFS methods. The measured tar concentration difference between these two methods was less than 10     «

Two on-line tar measurement campaigns were carried out using an atmospheric pressure 100 textquotelefttextquotelefttextquoterighttextquoterightkW(th) steam-O-2 blown circulating fluidized bed (CFB) gasifier at the Delft University of Technology (TUD) and a 30-40kW(th) steam blown pressurized bubbling fluidized bed (PBFB) gasifier BabyHPR (Heatpipe Reformer) at the Technical University Munich (TUM). Agrol, willow and Dry Distillertextquoterights Grains with Solubles (DDGS) were used. An FID based...     »