首页> 外文期刊>Applied clay science >High resolution transmission electron microscopy study of clay mineral particles from streams of simulated water based bitumen extraction of Athabasca oil sands
【24h】

High resolution transmission electron microscopy study of clay mineral particles from streams of simulated water based bitumen extraction of Athabasca oil sands

机译:阿萨巴斯卡油砂模拟水基沥青提取料流中粘土矿物颗粒的高分辨率透射电镜研究

获取原文
获取原文并翻译 | 示例
       

摘要

Understanding the interaction of clay minerals with bitumen in the oil sands is of great interest in developing water-free or water-reduced bitumen extraction processes. Previous work by Kaminsky et al. has shown, by X-ray diffraction (XRD), that there is a difference between clay minerals that partition to the froth stream and the clay minerals that remain in the middlings. However, XRD analysis was insufficient in determining why the different minerals partitioned the way they did. This work focuses on transmission electron microscopy (TEM) investigations of the clay minerals in the streams to examine the characteristic structural and morphological differences in the clay mineral particles. High resolution TEM (HRTEM) investigations revealed the presence of discrete smectite in the froth stream, while no discrete smectite phases were detected by XRD analysis. Illite-smectite expandability results calculated from HRTEM data has made it possible to explain the observed differences in cation exchange capacities (CEC). Based on HRTEM studies, a pronounced bimodal thickness distribution of the clay mineral particles containing a large number of very thin particles with smectitic layers is observed. The thin particles are responsible for the high surface activity in the primary froth stream especially with iron compounds and organic matter.
机译:了解油砂中粘土矿物与沥青的相互作用对开发无水或节水的沥青提取工艺具有重大意义。 Kaminsky等人的先前工作。通过X射线衍射(XRD)显示,分配到泡沫流中的粘土矿物与残留在中部的粘土矿物之间存在差异。但是,XRD分析不足以确定不同矿物为何按其方式划分。这项工作的重点是透射电子显微镜(TEM)研究流中粘土矿物,以检查粘土矿物颗粒的特征性结构和形态差异。高分辨率TEM(HRTEM)研究显示,泡沫流中存在离散的蒙脱石,而XRD分析未检测到离散的蒙脱石相。根据HRTEM数据计算出的伊利石-蒙脱石可膨胀性结果,可以解释观察到的阳离子交换容量(CEC)的差异。根据HRTEM研究,观察到包含大量具有薄层的非常细颗粒的粘土矿物颗粒的明显双峰厚度分布。细颗粒负责初级泡沫物流中的高表面活性,尤其是铁化合物和有机物。

著录项

  • 来源
    《Applied clay science》 |2010年第3期|p.466-474|共9页
  • 作者单位

    Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, Canada T6G 2V4 Department of Geology of Mineral Deposits, Comenius University in Bratislava, 842 15, Slovakia;

    Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, Canada T6G 2V4 Department of Geology of Mineral Deposits, Comenius University in Bratislava, 842 15, Slovakia;

    Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, Canada T6G 2V4;

    Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, Canada T6G 2V4;

    Natural Resources Canada, Devon, Alberta, Canada;

    Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, Canada T6G 2V4;

    Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, Canada T6G 2V4;

    Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, Canada T6G 2V4;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    CEC; clay minerals; Fe oxides; HRTEM; illite-smectite; oil sands;

    机译:CEC;粘土矿物;铁氧化物;HRTEM;伊利石-蒙脱石油砂;
  • 入库时间 2022-08-17 13:55:23

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