Articles techniques et présentations

The Triton team was contracted to model and optimize a gas separation/pre-concentrator system involving selectively permeable membranes. The system would nominally include an input of mixed gas species at some driving pressure, a number of membrane modules, and separate permeate ... En savoir plus

研究基于自主研发并已投入运行的超高纯氪氙分离低温精馏系统的实验数据，在 COMSOLMultiphysics 软件利用非等温流动和多孔介质中的稀物质传递模块建立极低浓度下波纹规整填料PACK-13C 的 REU 模型，利用化学模块描述不同温度、压力和浓度下的气液物性，通过Delft模型计算得到气液间传质系数，利用传质通量边界和边界热源模拟气液界面上的传质传热现象，分析气液两相传热传质特性，研究极低浓度(<e-7 mol/mol)下的气液传质过程，并通过改变填料几何结构进行优化分析。 模拟结果显示REU模型能较为准确地表征填料液膜上的浓度变化 ... En savoir plus

For membrane gas separation modeling, some assumptions are made. One of the most typical approaches in such modeling is to assume a plug flow in the feed/retentate channel and ideal mixing conditions in the permeate channel. For membranes with high permeation, the permeate flux could be ... En savoir plus

In a recent publication (Limitations of Breakthrough Curve Analysis in Fixed-Bed Adsorption, Ind. Eng. Chem. Res. 2016, 55, 4734-4748) the authors discussed the a priori prediction of the axial dispersion coefficient from available correlations versus obtaining it and also mass transfer ... En savoir plus

Patterned two-dimensional (2D) materials have recently become promising candidates for separation processes in both gaseous and aqueous phases, due to mechanical strength and atomic thickness. Conventional separation technique using 2D materials are limited by the surface charge of 2D ... En savoir plus

Spatial Atomic Layer Deposition (SALD) is a novel technique that allows the deposition of thin films at a considerably shorter time than the conventional Atomic Layer Deposition (ALD) techniques while retaining its unique assets, i.e. high-quality films at low temperature, precise ... En savoir plus

One of the most critical aspects on water electrolysis is gas-liquid separation, especially in systems with forced convection. The main problem of this kind of circulation is that a gas fraction could return to the electrolysis circuit. A suitable design of separator devices could be a ... En savoir plus

NASA's Advanced Exploration Systems (AES) program is pioneering new approaches for rapidly developing prototype systems, demonstrating key capabilities, and validating operational concepts for future human missions beyond Earth orbit" [1]. Under the new Atmosphere Revitalization Recovery ... En savoir plus

The optimization of operating conditions in multitube membrane modules is highly complex. The multiple physics and irregular geometries involved create a challenge for predicting their behavior. This work analyzes the performance of H2 purification through a module containing seven ... En savoir plus

“NASA\'s Advanced Exploration Systems (AES) program is pioneering new approaches for rapidly developing prototype systems, demonstrating key capabilities, and validating operational concepts for future human missions beyond Earth orbit” [1]. Under the new Atmosphere Revitalization ... En savoir plus