O-14 部分燃焼を用いたタール改質過程におけるすすの排出低減(セッション3:技術I,研究発表(口頭発表))

概要

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One way for reducing tar is oxidative and thermal cracking by partial combustion of the producer gas in the gas reformer that is a stage subsequent to the biomass gasifler. The polymerization of tar into soot is a significant problem in the gas reformer. Experimental study with two types of laser diagnostics (soot-LII and PAHs-LIF) was performed to clarify the effect of hydrogen concentration in the combustion region on soot formation and the growth of polycyclic aromatic hydrocarbons (PAHs) that is precursor of soot. Soot formation was suppressed by the small amount of hydrogen addition to the oxidizer for partial combustion. The suppression of soot formation was caused by higher concentration of hydrogen at the proximity of the combustion region since the aromatic radicals were neutralized before they polymerized into soot.
2011-01-12