نتایج جستجو برای: pervaporation pv

تعداد نتایج: 24287  

Bergamot peel oil is highly attractive for food and pharmaceutical industries due to its content of valuable essential oil, which is enriched with high-added valuable compounds, such as limonene, linalool and linalyl acetate. Nevertheless, there are some limitations for the separation of such compounds. In this framework, pervaporation (PV) technology was proposed as a ...

Journal: :Journal of Industrial and Engineering Chemistry 2023

This paper presents as main contribution the combination of membrane osmotic distillation (OD) to dealcoholize red wine with hydrophobic-hydrophilic pervaporation (PV) carried out add value wastewater (extracting water) produced in OD, recycling water and generating bioethanol. Membrane OD a commercial polypropylene hollow fiber module was applied partially from 14.0 11.0 v/v% ethanol. The extr...

2015
SohailRasool Lone Syed Akhlaq Ahmad Vimal Kumar

*Corresponding author: Sohail Rasool Lone Chemical Engineering Department, IIT Roorkee, Roorkee-Uttarakhand, India, Tel:911332285 311; E-mail: [email protected] Received June 15, 2015; Accepted June 30, 2015; Published July 10, 2015 Citation: Lone S, Ahmad SA, Kumar V (2015) Modeling and Simulation of a Hybrid Process (Pervaporation+Distillation) using MATLAB. J Chem Eng Process Technol 6:...

2004
S. X. Liu L. M. Vane M. Peng

Volume Four 5-1 THEORETICAL ANALYSIS OF CONCENTRATION POLARIZATION EFFECT ON VOC REMOVAL BY PERVAPORATION 1S.X. Liu, 2L.M. Vane, and 1M. Peng 1Department of Food Science, Rutgers University, New Brunswick, New Jersey 08901-8520; Phone: (732) 932-9611 X240; Fax: (732) 932-6776; Email: [email protected]. 2Clean Process and Product Division, National Risk Management Research Laboratory, U.S. E...

Membrane-based pervaporation (PV) has attracted much attention in the dehydration of organic solvents. Permeate pressure and feed flow rate are two important parameters, which affect membrane performance in pervaporation. The effects of these two parameters on the performance of a commercial poly (vinyl alcohol) membrane in the dehydration of benzene have been investigated in this work. The exp...

2008
Pavel Izák Katrin Schwarz Hubert Bahl Udo Kragl

Pervaporation proved to be one of the best methods to remove solvents out of a solvent producing Clostridium acetobutylicum culture. By using an ionic liquid (IL)polydimethylsiloxane (PDMS) ultrafiltration membrane (pore size 60 nm), we could guarantee high stability and selectivity during all measurements carried out at 37°C. Overall solvent productivity of fermentation connected with continuo...

2006
Hong Ye Jiding Li Jian Chen Cuixian Chen

Four kinds of polyimides containing fluorine were successfully synthesized based on various dianhydrides including 4,4’-(hexafluoroisopropylidene)diphthalic anhydride (6FDA), 4,4’-oxydiphthlic dianhydride (ODPA) and 1,4-bis(3,4-dicarboxyphenoxy) benzene dianhydride (HQDPA), and various diamines including 2,2-bis[4-(4-aminophenoxy)phenyl]-hexafluoropropane (BDAF) and 2,2-bis[4-(4-aminophenoxy)ph...

2013
De Sun Bing-Bing Li Zhen-Liang Xu

−Hydrophobic polydimethylsiloxane polytetrafluoroethylene (PDMS-PTFE) flat-sheet membranes for pervaporation (PV) of chloroform from aqueous solution were successfully fabricated by solution casting method. The structures and the performance of the membranes was characterized by X-ray diffraction (XRD), scanning electron microscope combined with energy dispersive X-ray spectroscopy (SEM-EDXS), ...

2001
H. C. Park

Homogeneous membranes were prepared by blending poly (acrylic acid) with poly (vinyl alcohol). These blend membranes were evaluated for the selective separation of alcohols from toluene by pervaporation. The flux and selectivity of the membranes were determined both as a function of the blend composition and of the feed mixture composition. The results showed that a polymer blending method coul...

2000
M. H. V. MULDER T. FRANKEN C. A. SMOLDERS

Transport of liquids by pervaporation takes place by a solution-diffusion mechanism. In order to investigate the “solution part” of this transport model, preferential sorption has been compared with preferential permeability. Sorption equilibria and pervaporation experiments for the systems water-ethanol-cellulose acetate, water-ethanol-polyacrylonitrile and water-ethanol-polysulfone have been ...

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