主催: 社団法人 日本エネルギー学会
共催: 化学工学会 (エネルギー開発特別研究会)
会議名: 第38回石炭科学会議
回次: 38
開催地: 東北大学工学部 青葉記念会館
開催日: 2001/11/13 - 2001/11/14
p. 199-202
In coal-fired combined power generation systems like pressurized fluidized bed combustion (PFBC), vapor-phase alkali metal compounds from coal contaminate the reaction gas, which may cause hot corrosion of turbine blades. In this study, evolution behaviors of the alkali metal compounds, especially for sodium compounds, in coal combustion were elucidated, sampling and shifting the fine particulates in the combustion process and analyzing the sodium concentration. Concentration of fine particulates and distribution of sodium concentration in the particulates depended on coal type. The mechanism of sodium enrichment was estimated by the result of sodium concentration in the particulates shifted.