Clean Coal Production by Column Floatation Process

柱浮选精煤生产

• 批准号: 11218210
• 负责人: MATSUKATA Masahiko
• 金额: $ 19.71万
• 依托单位: Waseda University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research on Priority Areas
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-11218210/
• 关键词: column floatation; Carbonaceous materials recovery; Liberalization; Ash Rejection; Floatation Results; Hydrophilicity; Hydrophobicity; Minerals; Coal; 単体分離; 親疎水; 選炭; 表面親疎水性; 褐炭; クリーンコール; 無機成分; 有害微量金属; フィルム浮選; CVD; イオンクロマトグラフィー; イオンクロマト

Column flotation is one of the promising processes for the low-cost next generation coal cleaning technologies. As for the column flotation system, many efforts have focused on optimization of apparatus and/or improvement of flotation results so far. However there have been few studies that tried to estimate the relation of flotation results and characteristics properties of coal. We employed a continuous column flotation system for the simple coal cleaning process. Samples used in this study were Adaro, Wallarah, Ermelo, Datong, Taiheiyo, and they were crushed and sieved under 150μm. Then we investigated the demineralization in the column flotation system to estimate the flotation behavior by measuring the contents of inorganic elements in the cleaned coal and the tail refuse. Furthermore we investigated the change in the distribution of coal minerals and their average particle size during the flotation. Each steady state was 5〜14 min after starting the experiment.As a result, Wallarah was suitable for continuous column flotation. On the other hand, the flotation result of each brown coal (Pasir, Adaro, Berau) was different tendency. We found that column floatation process was a good way to recover carbonaceous materials from low rank coal. This process is very simple so it is suitable for application in Asian countries.

浮选柱是下一代低成本煤炭精选技术中最有前途的工艺之一。至于柱浮选系统，迄今为止，许多努力集中在设备的优化和/或浮选结果的改进上。然而，很少有研究试图估计浮选结果与煤的特征性质的关系。我们采用了一个连续柱浮选系统的简单的选煤过程。本研究中使用的样品为Adaro、Wallarah、埃尔梅洛、大同、Taiheiyo，将其粉碎并在150μm以下过筛。在此基础上，对浮选柱中的脱矿过程进行了研究，通过测定精煤和尾煤中无机元素的含量来评价浮选行为。此外，我们还研究了浮选过程中煤矿物分布及其平均粒度的变化。试验开始后5 ~ 14 min为一个稳定状态，表明Wallarah适合于连续柱浮选。另一方面，各褐煤（巴西、阿达罗、贝劳）的浮选结果有不同的趋势。结果表明，浮选柱是一种较好的回收低阶煤中含碳物质的方法。这个过程非常简单，因此适合在亚洲国家应用。

项目成果

松方正彦 ら(共著): "ゼオライトの科学と工学(小野嘉夫、八嶋建明 編)"講談社サイエンティフィク. 260 (2000)

Masahiko Matsukata 等人（合著者）：“沸石科学与工程（由 Yoshio Ono 和 Takeaki Yashima 编辑）”讲谈社科学 260 (2000)。

松方正彦,小倉賢: "ドライゲルコンバージョン法によるゼオライト合成"機能材料. 20. 64-73 (2000)

Masahiko Matsukata，Ken Ogura：“干凝胶转化法合成沸石”功能材料。20. 64-73 (2000)。

H. Fujimoto, et al.: "Evaluation of Flotation Results Using Rubidium Ion Exchange"J. Chem. Eng. Jpn. 32. 204-210 (1999)

H. Fujimoto 等人：“使用铷离子交换评估浮选结果”J。

M.Matsukata,et al.: "Effect of Pinholes on Permselectivities of MFI Membranes"Proc.the 12th Intern.Zeolite Conf. 613-620 (1999)

M.Matsukata 等：“针孔对 MFI 膜渗透选择性的影响”Proc.the 12th Intern.Zeolite Conf.

M. Matsukata, et al.: "Sybthesis of OU-1, a Large-ole, High Silica Zeolite, by Dry Gel Conversion"Proc. the 12th Intern. Zeolite Conf.. 2009-2014 (1999)

M. Matsukata 等人：“通过干凝胶转化合成 OU-1（一种大油量、高硅沸石）”Proc。