The measurements of the intrinsic diffusivity in pores and surface diffusivity inside the porous materials in liquid phase
The measurements of the intrinsic diffusivity in pores and surface diffusivity inside the porous materials in liquid phase
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液相多孔材料孔内本征扩散率和表面扩散率的测量
DOI：
10.1016/j.ces.2018.11.006
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发表时间：
2019-03
影响因子：
4.7
通讯作者：
Jintao Guo
中科院分区：
文献类型：
--
作者：
Wei Sun;Sheng-Li Chen;Mingri Xu;Yaqian Wei;Ting-ting Fan;Ling-xiang Huang;Baoli Ma;Jintao Guo
本文提出了一种改进的数学模型来模拟二苯并噻吩的扩散。（DBT）分子在多孔材料内的液相。的实验数据。在孔隙结构均匀的二氧化硅吸附剂中进行了扩散。固有孔隙扩散系数。通过对参数的优化，得到了分子的本征表面扩散系数。用实验数据建立数学模型。溶液中分子的体积扩散系数为。当二氧化硅吸附剂的孔径足够大时得到。内在的相关性。建立了多孔材料的孔扩散率与扩散分子大小与孔大小之比的关系，并研究了孔大小对表面传质与总传质之比的影响。结果表明，多孔材料的孔径越小，其表面质量比越高。传递到总传质。
In this work, an improved mathematical model was proposed for simulation of the diffusion of dibenzothiophene.(DBT) molecules inside the porous materials in liquid phase. The experimental data of the.diffusion were obtained in some silica adsorbents with uniform pore structure. The intrinsic pore diffusivity.and intrinsic surface diffusivity of molecules were obtained through optimizing the parameters in.the mathematical model with the experimental data. The bulk diffusivity of molecules in solution was.obtained when the pore size of the silica adsorbents was large enough. The correlation of the intrinsic.pore diffusivity with the ratio of diffusion molecular size to pore size of porous materials was established..In addition, the effect of pore size on the ratio of surface mass transfer to total mass transfer was studied.and it was found that the smaller the pore size of porous materials, the higher the ratio of surface mass.transfer to total mass transfer.
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影响因子：
4.2
作者：
Chiuping Li;Yu‐Wen Chen;M. Tsai
通讯作者：
Chiuping Li;Yu‐Wen Chen;M. Tsai
影响因子：
4.2
作者：
M. Tsai;Yu‐Wen Chen;Chiuping Li
通讯作者：
M. Tsai;Yu‐Wen Chen;Chiuping Li
影响因子：
7.4
作者：
Bin Yang;Yili Kang;Lijun You;Xiangchen Li;Qiang Chen
通讯作者：
Bin Yang;Yili Kang;Lijun You;Xiangchen Li;Qiang Chen
影响因子：
7.4
作者：
Barrande, M.;Bouchet, R.;Denoyel, R.
通讯作者：
Denoyel, R.
影响因子：
4.2
作者：
T. Dogu
通讯作者：
T. Dogu