• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Catalysis science & technology >Insight into the effect of non-stoichiometric sulfur on a NiMoS hydrodesulfurization catalyst
【24h】

Insight into the effect of non-stoichiometric sulfur on a NiMoS hydrodesulfurization catalyst

机译：洞察non-stoichiometric的效果硫在尼莫地平的加氢脱硫催化剂

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

The findings in this study provide new insight into the NiMoS model, revealing that there is a sulfur dynamic equilibrium between the NiMoS edge and the gas phase. Since the evolution of non-stoichiometric sulfur proceeds rapidly at the initial stage of hydrodesulfurization reaction, the sulfur dynamic equilibrium does not draw so much attention. The results indicate that excess sulfur on the NiMo-S edge can be reduced by hydrogen to form SH groups and release H2S, which lead to a low sulfur-covered Ni-MoS edge and a significant increase in coordinatively unsaturated sites (CUS), resulting in an outstanding HDS activity. Apart from elucidating the effect of non-stoichiometric sulfur on the NiMoS structure, the relationship among H2S partial pressure, S-x and HDS activity has been quantitatively studied. It is expected that these results will be used to deepen the understanding of HDS reaction over promoted MoS2 catalysts, as well as to guide the research on ultra-deep HDS of fuel oils.
机译：在这个研究结果提供了新的见解小丑鱼模型,显示出有一个硫尼莫地平的边缘之间的动态平衡气相。non-stoichiometric硫快速收益的加氢脱硫反应的初始阶段,硫动态平衡不画太多的关注。可以减少硫NiMo-S边缘氢形成SH组和释放硫化氢导致低sulfur-covered钼镍和边缘显著增加协调不饱和的网站(CUS),导致一个杰出的HDS活性。上non-stoichiometric硫的影响尼莫地平结构,H2S之间的关系分压,sx和HDS活性定量研究。结果将被用来加深理解HDS反应的催化剂在提升二硫化钼,对于超HDS指导研究燃料的油。

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