Liquid phase mass transfer rates kLS for the absorption of oxygen in tap water and in aqueous ionic solutions have been determined in two closed stirred tank contactors for a power input between 3 and 70 W/kg and (impeller diameter)f(tank diameter) ratios DifT of 0.3, 0.35 and 0.4. The contactors had diameters of 0. I9 and 0.6 m. The dispersed phase fraction was 1% by volume in all experiments....

In this study, local area water content distribution under various gas purging conditions are experimentally analyzed for the first time. The local high frequency resistance (HFR) is measured using novel micro sensors. The results reveal that the liquid water removal rate in a membrane electrode assembly (MEA) is non-uniform. In the under-the-channel area, the removal of liquid water is governe...

this research includes both experimental and cfd investigation in the hydrodynamic behavior of a new type of column tray introduced as “concap” tray. the proposed column tray is used in contactor columns especially in stripping columns. the hydrodynamics of this concap tray is investigated in a 1.2m in diameter column. using air-water system, the experiments were performed for different liquid ...

• Novel Ionic Liquid that is not corrosive to aluminum used as liquid desiccant. New three-fluid fin-tube desiccant contactor fabricated using aluminum. Experimental performance of the IL solution investigated. The fin–tube showed superior than packed bed contactor. Lower flow rates and pumping power expected experimental a new novel ionic investigated compared with those an adiabatic LiCl for ...

The Twister supersonic separator is a unique combination of known physical processes, combining aerodynamics, thermodynamics and fluid dynamics to produce an innovative gas conditioning process. Condensation and separation at supersonic velocity is the key for achieving a significant reduction in both capital and operating cost. Twister is a proven gas conditioning technology. Condensation and ...

Biological treatments are used in gas treatment when containing Volatile Organic Compounds (VOC). Key factor to enhance efficiency is maximize mass transfer from liquid. VOCs can be removed the flow by absorption a separate gas–liquid contactor before entering Two-Phase Partitioning Bioreactor (TPPB) (Two-stage unit). The Non-Aqueous Phase Liquid (NAPL), silicone oil this study, able solubilize...

Introduction Many analysts 1,2,3 identify carbon dioxide (CO 2) capture and separation as a major roadblock in efforts to cost effectively mitigate greenhouse gas emissions via sequestration. An assessment 4 conducted by the International Energy Agency (IEA) Greenhouse Gas Research and Development Programme cited separation costs from $35 to $264 per tonne of CO 2 avoided for a conventional coa...