主催: 日本エネルギー学会, 石炭科学部会, コークス工学研究部会, 重質油部会
共催: 日本学術振興会 石炭・炭素資源利用技術第148委員会, 化学工学会 エネルギー部会
会議名: 第56回石炭科学会議
回次: 56
開催地: ウィンクあいち
開催日: 2019/10/29 - 2019/10/30
p. 52-53
Coal pyrolysis is an important reaction that has much influence on initial situations in coal combustion and gasification processes. We have developed a pyrolysis model, Ex-CPD model that can determine specific light gas and tar molecules. However, the structure parameter of aromatic nucleus that the previous Ex-CPD used increased as decreasing aromaticity index, fa. Therefore, we modified the procedure of determining the structure parameters.
Furthermore, kinetic parameters of decomposition of a labile bridge were adjusted. As a result, the volatile matter calculated by the Ex-CPD model increased as heating rate increased. The Ex-CPD model was used to predict char, soot and light gas yield in coal gasification. The calculation results showed good agreement with the experimental results, especially soot yield tendency to each gasifying agent.
