Results 61 to 70 of about 6,263 (225)
The separation of binary ethyl acetate-isooctane mixtures by pervaporation and pervaporation-based hybrid methods is studied in this paper. The potential of pervaporation using commercially available membranes (PolyAn GmbH, Germany) was evaluated ...
Vreysen, S. +6 more
core +1 more source
Membrane Polymers for the Pervaporative Separation of Polar Organics: Methanol and Acetonitrile
We tested seven polymers as membranes for the pervaporative separation of methanol‐acetonitrile mixtures. Chloroprene rubber, silicone rubber, and Matrimid showed effective separation by favoring acetonitrile transport, enabling azeotrope breaking. Plasticization was assessed using Broadband Dielectric Spectroscopy.
Jordan Janák +8 more
wiley +1 more source
Recovery of strawberry aroma compounds by pervaporation
The main objective of this study was to determine the effects of feed temperature (30, 40, 50 degrees C), concentration (50, 100, 150 ppm), composition (different strawberry model solutions) and permeate pressure (4, 8 mbar) on recovery of strawberry ...
Şümnü, Servet Gülüm +2 more
core +2 more sources
Water cluster triggered vitrification in HKUST‐1 MOF crystal under pressure
Water molecules in the pore centre form an oriented pentagonal water cluster via H‐bonding, which exerts a pulling effect on Cu–O(ligand) bond and induces bond cleavage. Meanwhile, the broken fragment flips into an unfavourable arrangement that prevents the rejoining of the bond, which finally causes a continuous porous MOF network in the glassy state.
Jianguo Sun +13 more
wiley +1 more source
Process Simulation of a Commercial Pervaporation Unit for Ethanol–Water Separation
Pervaporation is a proven technology that overcomes distillation to produce high-quality ethanol. The process is modeled and simulated in the literature, but the model’s accuracy with industrial data is rarely discussed.
Yousef Alqaheem, Sharifah H. Alkandari
doaj +1 more source
Ozonolysis of Lignin: From Extensive Degradation to Selective Ring‐Opening Oxidation
Despite its potential as a renewable feedstock, lignin, a major component of plant cell walls and a by‐product of the pulp and paper industry, has long been underutilized. Historically, pulp mills employed ozonolysis, a powerful oxidative process, to delignify cellulosic fibers and break down lignin.
Alexandros E. Alexakis, Mika H. Sipponen
wiley +1 more source
Modelling of hydrophilic pervaporation systems [PDF]
This computational study focuses on the application of pervaporation for the removal of low concentrations of water from organic solvents. A classic chemical engineering approach is employed using mass and energy balances combined with an empirical ...
O'Suilleabhain, Cilian
core
Experimental methods in chemical engineering: Electrospinning
Abstract Electrospinning produces micro‐ and nanofibres by forcing a polymeric solution through a fine needle in an electric field that produces a filament that accumulates onto a collector plate. The fibre morphology depends on solution properties, distance between needle and plate, feed rate, and electric field intensity.
M. Olga Guerrero‐Pérez +2 more
wiley +1 more source
Solvent Regeneration in Complex Mixture Using Pervaporation
International audienceThis study aims to demonstrate the efficiency of dichloromethane (DCM) regeneration from a methanolic effluent by a combination of distillation and membrane pervaporation process.
Emilie Carretier +9 more
core +1 more source
The graphical abstract illustrates the conversion of food waste biomass into bioethanol through integrated pretreatment strategies. Physical (mechanical, thermal, sonication), chemical (alkali, acidic, oxidative/ROS), and biological (fungal, bacterial, enzymatic) pretreatments enhance biomass breakdown.
Shaina Sharma +10 more
wiley +1 more source

