Production of Eco-Friendly Slurry Fuel from Biomass and Low Rank Coal Mixture by Hydrothermal Treatment

生物质与低阶煤混合水热处理生产环保煤浆燃料

• 批准号: 15360470
• 负责人: HIRAJIMA Tsuyoshi
• 金额: $ 9.73万
• 依托单位: KYUSHU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-15360470/
• 关键词: Renewable sources of energy; Biomass; Reduction of CO_2 emission; Low rank coal; Hydrothermal treatment; 改質; 熱水処理; 環境; スラリー; 燃料

During circulative hydrothermal treatments of biomass and low rank coal, it is clarified that the blend of these materials reveals a discrepancy in TOCs between the theoretical and experimental values due certainly to the adsorbent effect of the coal. Therefore, coalffication and partial adsorption of extractives are expected by mixing up the biomass with the coal during hydrothermal treatment. TOC variation is predicable from an on-line monitoring of the absorbance intensity during the treatment. Effects of treatment temperature and mixing ratio on the fuel characterization of the solid phase of the treated material were studied by the batch and continuous treatments. The treatment at higher temperature affects more on degree of the upgrading for both the materials and the upgrading reaction of the mixture was independent and in parallel with each other. The fuel ratio decreased as the mixing ratio increased, however, the chemical compositions of C,H,N and 0,and the gross calorific value were almost identical on a dry ash-free basis, independent of the mixing ratio. The continuous test produced the solid phases having a gross calorific value similar to that for the batch test. In addition, it is worth mentioning that a five-hour run of the continuous treatment was conducted successfully. The characterization of the liquid phase clarified that reducing phenols such as 2,6-dimethoxyphenol, guaiacol and etc. as well as acetic acid and methanol were contained in the liquid phase. The liquid phase reduced Cr (VI) effectively to Cr (III) and the addition of slaked lime or quicklime to the reduced system removed almost all amount of Cr (III) as a precipitate. The amount of sludge decreased 1/2 - 1/3 as compared with the use of iron (I) sulfate as a reducer.

在生物质和低阶煤的循环水热处理过程中，我们发现这些材料的混合物显示出理论值和实验值之间的 TOC 差异，这肯定是由于煤的吸附剂效应造成的。因此，通过在水热处理期间将生物质与煤混合，预计可实现煤化和提取物的部分吸附。 TOC 变化可以通过处理过程中吸光度强度的在线监测来预测。通过间歇和连续处理研究了处理温度和混合比对处理材料固相燃料特性的影响。较高温度的处理对两种材料的提质程度影响较大，且混合物的提质反应是独立且平行的。随着混合比的增加，燃料比降低，但是，C、H、N 和 0 的化学成分以及总热值在干燥无灰基础上几乎相同，与混合比无关。连续测试产生的固相具有与批量测试相似的总热值。此外，值得一提的是，连续五个小时的连续治疗已成功进行。液相表征表明，液相中含有2，6-二甲氧基苯酚、愈创木酚等还原性酚类以及乙酸和甲醇。液相有效地将 Cr(VI) 还原为 Cr(III)，并且向还原体系中添加熟石灰或生石灰几乎以沉淀物的形式去除了所有量的 Cr(III)。与使用硫酸铁(I)作为还原剂相比，污泥量减少1/2～1/3。

项目成果

湯川健太郎: "熱水乾燥法による低品位炭改質時に生成する溶液のキャラクタリゼーションとそのCr(VI)還元能"資源と素材. 119. 161-169 (2003)

Kentaro Yukawa：“通过热水干燥法重整低阶煤过程中产生的溶液的特性及其 Cr(VI) 还原能力” 资源与材料 119. 161-169 (2003)。

Role of Mixed Raw Rank Coal during Fuel Conversion of Woody Biomass by Using Hydrothermal Treatment

混合原煤在水热处理木本生物质燃料转化过程中的作用

• 发表时间: 2006
• 期刊: Proc. XXIII International Mineral Processing Congress (In press)
• 作者: 野中 壯泰 ら;Moriyasu Nonaka et al.
• 通讯作者: Moriyasu Nonaka et al.

Hydrothermal Treatment of Low Rank Coal and Woody Biomass Mixture

低阶煤与木质生物质混合物的水热处理

• 发表时间: 2005
• 期刊: Proc.International Symposium on Green Technology for Resources and Materials Recycling
• 作者: 野中 壯泰 ら;Moriyasu Nonaka et al.;野中 壯泰 ら;M.Nonaka et al.;野中 壯泰 ら;Moriyasu Nonaka et al.;平島 剛 ら;野中 壯泰 ら;Moriyasu Nonaka et al.;平島 剛 ら;M.Nonaka et al.
• 通讯作者: M.Nonaka et al.

水熱処理法による木質系バイオマス燃料製造とその生成液体によるCr(VI)還元

通过水热处理生产木质生物质燃料并使用所得液体还原 Cr(VI)

• 发表时间: 2003
• 期刊: 資源と素材 119
• 作者: Moriyasu Nonaka et al.;M.Nonaka et al.;Moriyasu Nonaka et al.;Moriyasu Nonaka et al.;湯川健太郎 et al.;小林 弘幸 et al.
• 通讯作者: 小林 弘幸 et al.

Characterization of Liquid Products Obtained from Hot Water-Drying Treatment of Low Rank Coal and Their Ability of Cr(VI) Reduction

低阶煤热水干燥处理液体产物的表征及其Cr(VI)还原能力

• 发表时间: 2003
• 期刊: Shigen-to-Sozai Vol.119
• 作者: Moriyasu Nonaka et al.;M.Nonaka et al.;Moriyasu Nonaka et al.;Moriyasu Nonaka et al.;湯川健太郎 et al.;小林 弘幸 et al.;K.Yukawa et al.
• 通讯作者: K.Yukawa et al.