mfi zeolite membranes were prepared on porous α-alumina substrates, using secondary growth of nano-seeded layers. the resulting membranes were characterized by means of scanning electron microscopy (sem), x-ray diffractometry (xrd), and pervaporation performance tests for separation of benzene, toluene and xylene (btx) mixture from contaminated water. the morphology, thickness, homogeneity, cry...

A review concerning pervaporation and vapor permeation membrane separation techniques used to separate liquid mixtures, is presented. Examples of polymers for membrane preparation as well as performance parameters of pervaporation and vapor permeation membranes are described. The second part of the paper presents applications of pervaporation and vapor permeation in environmental protection. At...

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...

*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:...

Mass transfer phenomenon that occurs in the pervaporation process when applied to the microemulsion breakdown, was confirmed by the results of inverse gas chromatography. The stationary phase for this study was polydimethylsiloxane (PDMS), a hydrophobic polymer employed as a membrane in the pervaporation technique. The retention times of the different molecule probes (toluene, cyclohexane, and ...

G-100 is used for higher molecular mass proteins. The solutions of proteins are prepared in guanidine hydrochloride (10 mg mL ), and cytochromec (10 mg mL ) is used as an internal standard. Descending chromatography is carried out at room temperature under an inclination angle of 253 to the horizontal. After 3 h of development the quotient Rs protein/Rs cytochrome c is calculated for each prote...

The U.S. Federal Register of April 17, 1987, contains a list of priority pollutants found at Superfund Sites. About half of these are volatile organic compounds (VOC’s), which are known to be toxic and/or carcinogenic in nature. Pervaporation is a membrane technology utilizing a dense non-porous polymeric film to separate the contaminated water from a vacuum source. A membrane is used that pref...

this paper focuses on the effects of the addition of an ionic liquid, 1-allyl-3-butylimidazilium bis(trifluoromethane sulfonyl)imide ([abim]tfsi), which has a high affinity for benzene, into the poly(vinyl chloride) (pvc) membrane on the pervaporation characteristics of the removal of benzene from aqueous solutions of dilute benzene. when aqueous solutions of 100～500 ppm benzene were permeated ...