Non-Equilibrium MD Simulation Studies on Effects of Structural Difference in Outer Surfaces of a Silicalite Membrane on Effusion Processes of Propane
-
- Furukawa Shin-ichi
- Division of Chemical Engineering, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University
-
- Fujisawa Akitoshi
- Division of Chemical Engineering, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University
-
- Morisawa Satoshi
- Division of Chemical Engineering, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University
-
- Nitta Tomoshige
- Division of Chemical Engineering, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University
この論文をさがす
抄録
Boundary-Driven type Non-Equilibrium Molecular Dynamics (BD-NEMD) simulations have been carried out to investigate effusion processes of pure propane from the inside membrane to the gas phase by using two types of silicalite membrane models: an SC surface model that has an outer surface terminated at the cross section passing through the center of straight channels, and an IS surface model that has an outer surface terminated at the cross section passing through the center of intersections. In all simulations, the silicalite membrane and the propane molecule are represented by flexible (movable) models. It is found that the average effusion flux and the local density around the outer surface for the IS surface model are larger than those for the SC surface model. The potential and kinetic energy profiles have shown that effusing molecules take extra kinetic energy from membrane atoms to go over the potential barrier at the membrane exit. It is suggested that the existence of weak adsorption sites on the outer surface is essentially important for inorganic membranes to have high permeation fluxes.
収録刊行物
-
- JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
-
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 38 (9), 677-683, 2005
公益社団法人 化学工学会
- Tweet
詳細情報 詳細情報について
-
- CRID
- 1390282679545979264
-
- NII論文ID
- 130000019312
-
- NII書誌ID
- AA00709658
-
- ISSN
- 18811299
- 00219592
-
- NDL書誌ID
- 7445290
-
- 本文言語コード
- en
-
- データソース種別
-
- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
-
- 抄録ライセンスフラグ
- 使用不可