Title:
Development of a Test Gas Generator for Biomass Gasification Derived Process Gas - A Test Methodology for Quality Insurance and Development
Author(s):
Martini, S., Kleinhappl, M.
Document(s):
Paper
Poster
Abstract:
Reliable sampling and analysis methods are an important requirement for further development of gasification based systems. In all occurring process steps (gas production, treatment, utilisation) the basis of technology improvement is trustable information about present conditions. This includes the detailed characterisation of process gases. To test sampling and analysis methods it is necessary to apply wellknown gases with defined concentrations of associated materials under specified conditions. Further research fields, where defined test gases are required are the material development and investigation of reactions (exposition of samples, degradation tests). In a first step, the mobile test gas generator (TGG) was developed for the validation of routine methods for the detection of typical product gas impurities, like BTXE, PAHs, but also terpenes and other VOCs. Two dosing principles, (1) direct injection and total evaporation into a carrier gas stream and (2) the thermodynamic saturation of a carrier gas stream have been investigated. A subsequent dilutionstep allows the adjusting of a wide concentration range during operation. The creation of a stable, humidified test gas with userdefined concentrations of selected impurities at very low levels below 0.1 mg/m³, usc has been verified. Additionally the high automation grade of the setup allows the realisation of longterm exposition tests. A special TGGrig has been built with a second gas path without added substances for reference tests (comparison group). For further increase of the achieved gas quality and quality insurance, an extern gas analysis system GC&FID/pdHID including automated examination tool will be implemented.
Keywords:
biomass gasification, sampling, quality standards, gas analysis
Topic:
R&D on Biomass Conversion Technologies for Heating, Electricity and Chemicals
Subtopic:
Gasification for power, CHP and polygeneration
Event:
21st European Biomass Conference and Exhibition
Session:
2CV.3.8
Pages:
775 - 777
ISBN:
978-88-89407-53-0
Paper DOI:
10.5071/21stEUBCE2013-2CV.3.8
Price:
FREE
