主催: 日本エネルギー学会 石炭科学部会, 日本エネルギー学会 コークス工学研究部会
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, 重質油部会, ガス化部会, 燃焼部会
会議名: 第54回石炭科学会議
回次: 54
開催地: 秋田ビューホテル
開催日: 2017/10/18 - 2017/10/19
p. 60-61
An extraction method, which we call degradative solvent extraction, produces high quality extracts having similar physical and chemical properties from several types of low rank coals and biomasses. Three solid fractions, Residue, Deposit, and Soluble, were obtained from the extraction method. Residue is expected to be utilized as a high quality solid fuel because of its high heating value comparable to subbituminous coal. When the extraction product was not fractionated, we obtain solid upgraded product “solvent treated coal” (STC). STC is also expected to be a high quality solid fuel. To evaluate the potential of Residue, and STC as high quality solid fuels, estimation of their propensity to spontaneous heating is essential in addition to their heating values and rates of combustion and/or gasification. This work examines the propensity to spontaneous heating of Residue and STC prepared from two low rank coals using an index proposed in presentation, No.2-3.
