• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国政府科技报告 >Characterization and Suitability of Superclean Coals for Hydroliquefaction Feedstocks: Final Report.
【24h】

Characterization and Suitability of Superclean Coals for Hydroliquefaction Feedstocks: Final Report.

机译：超净煤用于加氢液化原料的表征和适用性：最终报告。

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Superclean coals have been studied for their suitability as liquefaction feedstocks. The effects of ash and sulfur contents and two catalysts on a hydrogen donor solvent liquefaction reaction have been studied. Experiments were run using a unique coal of small particle size (90% <22 microns). The coal was characterized in terms of its chemical and its physical properties. This information made it possible to determine the effects of the static tube flotation separation on the coal. Once characterized the coals were liquefied in the hydrogen donor tetralin under a hydrogen atmosphere of 500 psig. The first series of experiments was to determine the effects of the ash on the liquefaction reaction. The second group of experiments dealt with the effects of catalysts (ammonium molybdate and titanium carbide) on low ash coals at various conditions. A model for batch liquefaction in a hydrogen donor solvent is then developed. This model is based on the assumption that the reaction is due to two competing mechanisms; (1) a thermal decomposition of the coal and (2) a catalytic reaction. The thermal reaction produces unwanted products while the catalytic reaction produces the desired products. To accurately model the batch system, mass transfer is considered. 51 refs., 50 figs., 29 tabs.

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