No.52 揮発分組成を予測可能とする石炭初期熱分解モデルの構築 : CPD モデルの拡張(ガス化・燃焼・液化(1))

概要

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The coal pyrolysis is the important reaction that has much influence on initial situations in coal combustion and gasification processes. The CPD model is one of the most useful primary pyrolysis models considering coal chemical structures and has been modified to be high accuracy. However, it just described tar as abstract "tar". We extended the CPD model to describe primary tar compositions as actual chemical species. Aromatic nucleus clusters in coal were described as 1 to 3 aromatic rings. Therefore the model can describe the tar as the typical chemical species (benzene, naphthalene, and phenanthrene). As a result, it became possible to calculate the gas phase decomposition behavior by using the gas phase reaction mechanism in existence. CO_2, H_2O and O_2 gasification experiments were simulated by combining the extended CPD model, the gas phase reaction mechanism and char gasification models.
2012-10-15