第39回石炭科学会議
会議情報
主催: 日本エネルギー学会
共催: 化学工学会 （エネルギー部会）, 大阪大学大学院工学研究科
会議名: 第39回石炭科学会議
回次: 39
開催地: 大阪大学 コンベンションセンター
開催日: 2002/10/29 - 2002/10/30
33.石炭及び石炭/CaO(Ca(OH)_2)混合試料の熱分解比較
p. 83-84
詳細
主催: 日本エネルギー学会
共催: 化学工学会 （エネルギー部会）, 大阪大学大学院工学研究科
会議名: 第39回石炭科学会議
回次: 39
開催地: 大阪大学 コンベンションセンター
開催日: 2002/10/29 - 2002/10/30
p. 83-84
Coal, coa/CaO and coal/Ca(OH)_2 mixture were pyrolyzed under various pressure with heating rate 20K/min under various pressure. The total volume of gas product from pyrolysis was in the order of coal/Ca(OH)_2>coal/CaO >coal at high pressure. H_2 products in coal/CaO and coal/Ca(OH)_2 pyrolysis peaked in the temperature range of 923-973K. At this H_2 peak temperature, the H_2 content in product gas was approximately 80%, while there was little CO, CO_2, and CH_4. One reason for this is that the H_2O contained in coal can be brought to a higher temperature by the reactions of Ca(OH)_2 formation and decomposition. H_2O reacted with coal at high temperature, producing H_2 and CO. It was also found that CO can shift to CO_2, and that CO_2 can be fixed by CaO to CaCO_3 in the temperature range of the H_2 peak.
