...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Chemical Engineering Research & Design: Transactions of the Institution of Chemical Engineers >Experimental and theoretical investigation of molecular diffusion coefficient of propylene in NMP
【24h】

Experimental and theoretical investigation of molecular diffusion coefficient of propylene in NMP

机译：实验和理论研究丙烯的分子扩散系数

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 this study, the absorption of propylene in N-methyl pyrolidone (NMP) was experimentally performed at three different temperatures (276.15,293.15, and 328.15 K) using the pressure decay method and as a result, the equilibrium data, Henry's law constants, and kinetic data were reported. It was shown that the solubility and diffusivity are two important factors affecting the kinetic behavior of the system. This absorption system was mathematically modeled using Fick's second law accompanied by a time dependent boundary condition. An analytical method followed by numerical optimization was used to estimate the diffusion coefficient of propylene in NMP at different operating temperatures. The results demonstrated that the calculated diffusion coefficient obeys an Arrhenius type model. The resulting mathematical model was applied to calculate the number of absorbed moles of the gas. It shows a deviation of about 10% in comparison with the experimental measurements. Furthermore, the time dependent concentration profile along the liquid depth was also predicted.
机译：在这项研究中,丙烯的吸收N-methyl pyrolidone (NMP)实验在三种不同温度下进行(276.15,293.15和328.15 K)使用压力衰减的方法和结果,平衡数据、亨利定律常数和动力学数据据报道。和扩散率是两个重要的因素影响系统的动力学行为。这个吸收系统数学建模使用菲克第二定律伴随着一次相关的边界条件。其次是数值优化方法用于估计的扩散系数丙烯在NMP不同的操作温度。计算扩散系数服从阿伦尼乌斯类型模型。模型应用于计算的数量吸收气体的摩尔数。约10%的比较与实验测量。沿着液体浓度剖面深度还预测。

著录项

相似文献

  • 外文文献
  • 中文文献
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