Preparation and Transportation Technology of Coal Slurries.

煤浆制备与输送技术。

基本信息

批准号：
05044105
负责人：
USUI Hiromoto
金额：
$ 2.56万
依托单位：
Yamaguchi University
依托单位国家：
日本
项目类别：
Grant-in-Aid for international Scientific Research
财政年份：
1993
资助国家：
日本
起止时间：
1993 至 1994
项目状态：
已结题

项目摘要

Huge amount of coal is now imported from Australia. For the stable and safe supply of energy, more sophisticated coal utilization techniques should be developed. The preparation and utilization techniques for the coal slurries have been extensively developed in recent years. In particular, the practical use of CWM (Coal Water Mixture) is available at the present stage. The use of CWM has great advantage to reduce the cost for the transportation of coal from Australia to Japan, because CWM can be transported by pipeline and slurry tanker as a fluid fuel. Also, this technology is of particular significance in view of the "environmental friendly" characteristics. The purposes of this collaboration program are described as follows.1. Development of effective dispersing additives and stabilizing additives.The use of suitable dispersing additive can increase in the coal concentration and cause the decrease of CWM viscosity.The stabilizing additive is necessary to prohibit the sedimetation of coal particles during the transportation and storage of CWM.2. Investigation of the process development in the preparation of coal slurries.The studies on the pulverization and pretreatment of coal slurries are valuable for the upgrading the CWMs from various kind of coal.3. Rheological measurements of CWM and modeling the thixsotropic behavior of coal slurries.Rheological study on suspensions CWM is necessary to understand the complex behavior of CWM.During the program, Japanese Professors from Universities of Yamaguchi and Kagoshima visited Australia for collaborative research with Australian colleagues. Also, researchers from Universities of Newcastle, Melbourne, Monash and RMIT in Australia visited Japan during 1993 and 1994. The results of this collaborative research have been published as more than twenty papers in many journals and conference proceedings. New aspect of the CWM technology has been obtained to solve the difficult problems in the practical use of CWM.

现在大量煤炭从澳大利亚进口。为了能源稳定安全供应，需要发展更加先进的煤炭利用技术。近年来，煤浆的制备和利用技术得到了广泛的发展。特别是CWM（煤水混合物）现阶段已经可以实用化。使用水煤浆对于降低从澳大利亚到日本的煤炭运输成本具有很大的优势，因为水煤浆可以作为流体燃料通过管道和泥浆罐车运输。而且，鉴于“环境友好”的特点，该技术具有特别重要的意义。本次合作项目的目的如下： 1．开发有效的分散剂和稳定剂。使用合适的分散剂可以提高煤浓度，降低水煤浆粘度。稳定剂是防止水煤浆运输和储存过程中煤颗粒沉降的必要条件。2 。煤浆制备工艺的研究。煤浆粉碎和预处理的研究对于各种煤种水煤浆的提质升级具有重要意义。 3． CWM的流变测量和煤泥触变行为建模。悬浮液CWM的流变研究对于理解CWM的复杂行为是必要的。在该项目期间，来自山口大学和鹿儿岛大学的日本教授访问了澳大利亚，与澳大利亚同事进行合作研究。此外，来自澳大利亚纽卡斯尔大学、墨尔本大学、莫纳什大学和皇家墨尔本理工大学的研究人员于1993年和1994年访问了日本。这项合作研究的成果已在许多期刊和会议论文集上发表了二十多篇论文。获得了CWM技术的新面貌，解决了CWM实际使用中的难题。