54 石炭炭化物における閉鎖孔の形成及びその開孔機構の解明(ガス化(1),燃焼,液化)

概要

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This study aimed to clarify the behavior of closed pores in coal chars during pyrolysis and gasification. Closed pore volume was calculated in terms of helium density and ash fraction. Closed pore surface area was calculated by Small-Angle X-ray Scattering (SAXS). Closed pore volume of caking model sample chars was larger than that of non-caking model sample chars. The caking probably influences the generation of closed pores at pyrolysis as well as coal chars. Also, closed pore surface area rapidly decreased at an initial stage of char gasification as well as closed pore volume. It might be indicated that closed pore is opened at an initial reaction, and theoretical formula to calculate closed pore volume is appropriate.
社団法人日本エネルギー学会の論文
2007-10-11