Title:
Comparative Measurements of Tar Concentrations in Gasification Systems between an Online Method and the Tar Protocol
Author(s):
Gredinger, A., Spörl, R., Scheffknecht, G.
Document(s):
Paper
Slide presentation
Abstract:
One of the major obstacles for the application of biomass gasification systems is the relatively high tar content of the product gas that inhibits the use in engines or turbines or in further processes like in methanisation or conversion to other secondary fuels or chemicals without further gas cleaning. The determination of the tar content with conventional standard methods is very time consuming and does not allow continuous online monitoring of the gas quality. One approach to avoid these drawbacks is an automatic system that monitors the tar concentration in the producer gas online during the gasification process. Such a system, based on a FID (flame ionization detector), was developed at IFK in the past with the final goal of commercialization. To show its accuracy, the comparability of the online measured values with the standard method DIN CEN/TS 15439 and its robustness in continuous operation, comparative measurements at different settings at an electrically heated 20 kWth lab scale gasifier at IFK over several hours have been performed and the results were compared to each other. The results show a stable operation of the gasifier and therefore also tar production and its detection with the online system. Furthermore, comparison of the results from both measurement techniques shows good agreement. A satisfying validation of the online method could therefore be conducted.
Keywords:
gasification, tar, tar analysis, process monitoring, online-measurement, FID, tar measurement
Topic:
Biomass Conversion Technologies for Heating, Cooling and Electricity
Subtopic:
Gasification for power, CHP and polygeneration
Event:
24th European Biomass Conference and Exhibition
Session:
2BO.2.1
Pages:
466 - 471
ISBN:
978-88-89407-165
Paper DOI:
10.5071/24thEUBCE2016-2BO.2.1
Price:
FREE
