O-01　Study of Anti-Clinker Additive for CHP fueled with wood chip

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  • O-01　木質チップを使用した小型バイオマスガス化発電装置におけるアンチクリンカ対策

Abstract

<p>More than 200 units of biomass compact gasification power generation (CHP) have been installed in Japan since 2016 with the expectation as the regional power source. Nevertheless, there are many cases they don’t work properly. One reason is that the potassium content is different between European and Japanese woods. Potassium can be melted at relatively low temperature (around 800°C) in reducing atomosphere and form clinker which accerelates tar production due to disturbance of homogenious wood gas flow. In past reserches, alumina or talc as anti-clinker additive was added to wood pellet fuels during manufacturing , and they showed a certain effect for improving gasification reaction. However, most of CHPs are fueled with wood chips and how to add the anti-clinker additive should be considered. In this study, we observed the shrinkage of ash sampled in actual CHP fueled with wood chips added 0.4 wt % talc and confirmed the anti-clinker effect.</p>

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