• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>The 23rd International Conference on Solid Waste Technology and Management(ICSW 2008) >Coal waste management by agglomeration of coal fines using non-edible vegetable oils
【24h】

Coal waste management by agglomeration of coal fines using non-edible vegetable oils

机译：使用不可食用的植物油将煤粉结块来管理煤炭废物

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In the current scenario of ever-increasing energy demand and depleting fossil fuel resources, the effective utilization of coal resources minimizing their wastage is gaining ground. Huge quantities of coal fines generated at various stages of mining, beneficiation and utilization form slurries with water. The untreated disposal of these slurries is not only a cause of environmental concern, but also results in the loss of high energy coal fines. In the present study, the potential of oil agglomeration technique in the beneficiation and recovery of these coal fines was examined using Indian coal (+75-200μm) and non-edible vegetable oils such as Jatropha, Karanja and Rubber seed oils as bridging oils. The experiments were carried out at a slurry pulp density of 1.5%(w/v) and an agitation speed of 1100 rpm by varying the bridging oil concentration from 10% to 50% (w/w of coal). The maximum yield of agglomerates with Karanja oil was found to be 89.3% as compared to 86.3% with Jatropha oil and 85.9% with Rubber seed oil using 20% oil concentration. Maximum organic matter recovery (>90%) and significant ash rejection (>50%) were achieved using all the oils at the same concentration.
机译：在当前能源需求不断增加和化石燃料资源枯竭的情况下，有效利用煤炭资源以最大程度地减少其浪费正在取得进展。在采矿，选矿和利用的各个阶段产生的大量煤粉与水形成浆液。这些浆料的未经处理的处置不仅引起环境问题，而且导致高能煤粉的损失。在本研究中，使用印度煤（+75-200μm）和非食用植物油（例如麻疯树，卡拉汉加和橡胶籽油）作为桥联油，研究了油团聚技术在这些煤粉的选矿和回收中的潜力。通过将桥联油浓度从10％更改为50％（煤的w / w），以1.5％（w / v）的浆粕密度和1100 rpm的搅拌速度进行实验。使用20％的油浓度，发现Karanja油的附聚物最大产率为89.3％，而Jatropha油的附聚物的最大产率为86.3％，Rubber Seed油的附聚物的最大产率为85.9％。使用所有相同浓度的油，可实现最大的有机物回收率（> 90％）和显着的除灰率（> 50％）。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号