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Production of Functional Materials from victorian Brown Coal

利用维多利亚褐煤生产功能材料

基本信息

批准号：
06044017
负责人：
NISHIYAMA Yoshiyuki
金额：
$ 3.97万
依托单位：
Tohoku University
依托单位国家：
日本
项目类别：
Grant-in-Aid for international Scientific Research
财政年份：
1994
资助国家：
日本
起止时间：
1994 至 1995
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-06044017/
关键词：
Brown coal Pyrolysis Molecular interaction Briquette Carbon structure Liquefaction catalyst Viscoelasticity Brown coal gel Organic sulfur 非共有結合触媒比重分離褐炭ゲル粘弾性電極

项目摘要

The present project aims at developing new ways of utilizing Victorian brown coals, which has a high reactivity, several unique features and a potential usefulness as a source of functional materials.Five Japanese junior scientists were sent to Australia and engaged in experimental works, as follows. Dr.Ozaki (Tohoku Univ.) stayd at Monash Univ. to elucidate the role of iron on the thermal decomposition of brown coals. Dr Kumagai (Hokkaido Univ.) measured NMR spectra at elevated temperatures at CSIRO.Dr.Korai (Kyushu Univ.) did research on carbonaceous materials at Monash Univ. Dr.Takanohashi (Tohoku Univ.) performed viscoelastic study of brown coal gels at Swinburne Univ. Dr.K.Sugawara (Akita Univ.) visited several organization to see the activities on sulfur removal from coal. Three Australian scientists, Drs.Patti, Mainwaring and Hobday, visited Japanese research organizations to discuss possible ways of brown coal utilization.Through the exchange program, as well as by works carried out at each University, the following results have beeen obtained. Effect of cations on pyrolysis of brown coal is demonstrated. The stability of brown coal briquette was given light from the view points of hydrogen bonding. The difference in structure is indicated for coals dried and dewatered. Mobility of coal molecules and their conformation were measured by PMRTA and others. Highly active and easily recoverable catalyst for coal liquefaction has been developed. Carbon fibers from synthesized pitches are shown to have micro and mesoscopic carbon units. Viscoelasticity of coal extracts is found to have different properties from those of raw coals or extract residues. Sulfur removal form coal is found to be more complete when pyrolysis is coupled with alkali pretreatment.These results do suggest a new aspect of brown coal utilization to be developed.

目前的项目旨在开发利用维多利亚褐煤的新方法，它具有高反应性，几个独特的特征和作为功能材料来源的潜在用途。5名日本青年科学家被派往澳大利亚从事实验工作，具体情况如下：尾崎博士（日本东北大学）留在莫纳什大学阐明铁在褐煤热分解中的作用。Kumagai博士（北海道大学）在csiro测量了高温下的核磁共振光谱，korai博士（九州大学）在莫纳什大学对碳质材料进行了研究，takanohashi博士（东北大学）在斯威本大学对褐煤凝胶进行了粘弹性研究，k . sugawara博士（秋田大学）访问了几个组织，观察了煤中硫的去除活动。三位澳大利亚科学家，博士。Patti， Mainwaring和Hobday访问了日本的研究机构，讨论了褐煤利用的可能途径。通过交流计划，以及在各大学开展的工作，取得了以下成果：研究了阳离子对褐煤热解的影响。从氢键的角度分析了褐煤型煤的稳定性。干燥和脱水后的煤在结构上存在差异。用PMRTA等方法测定了煤分子的迁移率及其构象。开发了一种高活性、易回收的煤液化催化剂。合成沥青碳纤维具有微观和介观碳单元。煤萃取物的粘弹性与原煤或萃取物渣具有不同的性质。热解与碱预处理相结合，煤中硫的脱除更为彻底。这些结果确实表明了褐煤利用的一个新方面有待开发。