Effect of internal diffusion on thiophene hydrodesulfurization in pyrolysis gasoline;
内扩散对裂解汽油中噻吩加氢脱硫反应的影响
The influence of internal diffusion on alkylation under the influence of external diffusion being eliminated was investigated.
本文对长链烯烃与苯在磷和镧改性的USY沸石分子筛上的烷基化反应进行了研究 ,考察内扩散阻力对烷基化反应的影响 ,建立了带内扩散阻力的反应动力学方程 ,通过数据拟合确定了动力学参数 ,得到反应动力学模型。
The film and pore diffusion model was used to analyze the diffusive mass transfer of EM in both mentioned resins.
采用液膜及孔内扩散模型,模拟不同温度和不同红霉素(EM)初始浓度条件下,大孔吸附树脂HZ816及XAD16吸附红霉素的动态吸附曲线,并获得液膜传质及孔内扩散系数;考察了温度及溶质浓度对红霉素在两种树脂中吸附动力学的影响。
With the film mass transfer,porous diffusion and axial dispersion were taken into account,and a film and pore diffusion model was employed to describe the diffusive mass transfer of .
并采用基于液膜及孔内扩散模型的动力学模型,同时考虑吸附树脂颗粒内外扩散阻力及轴向扩散的影响,研究了固定床上红霉素在大孔吸附树脂中的吸附动力学,并从穿透曲线回归得到液膜传质系数孔内扩散系数。
In this thesis, the causes of the common problems of indoor sound magnification are analyzed, and the resolutions are proposed.
对室内扩音中常见问题产生的原因进行了分析,并提出了解决问题的一些方法。
Based on the theory of porous media,with the hypothesis of Kirchhoff and small deformation of solid phase,a dynamic bending mathematical model of incompressible saturated orthotropic poroelastic plates with in-plane diffusion was established.
针对流体的面内扩散问题,在忽略面内惯性项的影响下,进一步简化了分析模型,给出了相应的基本控制方程以及初始和边界条件的一般描述。