P303 ダウンドラフト型バイオマスガス化発電システムの開発(ポスター発表)

概要

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We installed a downdraft-type gasification power generation system for woody biomass materials at Koromogawa-ku, Oshu-shi, Iwate, in December 2005 and have been conducting tests on it. The biomass raw materials were wood chips with a moisture content of 15-20wt%, supplied at 30-40kg/h, with a pylolysis temperature of 500-600℃ and a gasification temperature of 1,000-1,100℃. Gasification tests under these operating conditions showed stable gasification, producing concentrations of H_2, CO and CO_2 of 21, 18 and 13% vol%-dry, respectively, at the inlet to the gas engine. Tar concentration in the gasification gas was very low, at 100mg/Nm^3-dry or below. The low calorific value of the gas was 1,100-1,200kcal/Nm^3-dry. The cold gas efficiency was 64% and the output of the gas engine was 22kW. These high performance figures were delivered stably.
一般社団法人日本エネルギー学会の論文
2007-01-16