Results 91 to 100 of about 6,263 (225)

Metal-organic frameworks-based mixed matrix pervaporation membranes for recovery of organics

open access: yesAdvanced Membranes
Metal-organic framework (MOF)-based mixed matrix membranes (MMMs) have attracted significant attentions for their distinguished characteristics in pervaporation such as enhanced selectivity, increased permeability and improved mechanical strength through
Zehai Xu   +4 more
doaj   +1 more source

Pervaporation membranes for bio-refinery applications: From zeolites to MOFs

open access: yes, 2012
Pervaporation membranes for bio-refinery applications: From zeolites to ...
杨维慎   +7 more
core  

Preparation and pervaporation performance of high-quality silicalite-1 membranes

open access: yes, 2007
High-performance silicalite-1 membranes were successfully synthesized on novel porous silica tubes by two-step in-situ hydrothermal synthesis. The flux and separation factor towards ethanol/water mixture at 60 degrees C were 0.56 kg/(m(2.)h) and 84 ...
杨维慎   +4 more
core   +1 more source

Dehydration of Organic Solvents from Ternary Mixtures Containing Toluene/Methanol/Water by Pervaporation

open access: yesMembranes
The separation of a toluene/methanol/water ternary mixture is a difficult task due to the toluene/water and toluene/methanol azeotropes. In this article, low-energy pervaporation is proposed for the separation of the ternary azeotrope toluene–methanol ...
Ying Qiao   +4 more
doaj   +1 more source

Design and analysis of dynamic pervaporation for ethanol-water separation

open access: yes, 2021
gráficos, tablas.Una de las principales desventajas de la producción de bioetanol por fermentación es que el producto la inhibe. Por ello, actualmente se está desarrollando e implementando la pervaporación in situ para la eliminación del etanol durante
Villada Atehortúa, Laura Andrea
core  

Separation of bio-based chemicals using pervaporation

open access: yes, 2020
Pervaporation is a membrane-based technology of utmost interest when renewable biomass resources are used to produce building block molecules in order to achieve an efficient and economically viable purification step.
Luis Alconero, Patricia   +1 more
core  

Energy Saving Processes of Biofuel Production from Fermentation Broth

open access: yesChemical Engineering Transactions, 2012
The energy used for distillation in bioethanol production reaches the 40 % of the total energy demand. The pervaporation is an important alternative process to distillation that can be applied as a hybrid process or even as a single process to produce ...
E. Nagy, L. Hajba, J. Hancsók
doaj   +1 more source

Synthesis and pervaporation properties of NaA zeolite membranes prepared with vacuum-assisted method

open access: yes, 2007
Uniform and dense NaA zeolite membranes were synthesized on the tubular alpha-Al2O3 support with a vacuum-assisted method by using low vacuum. The effect of vacuum degree on the formation of the NaA zeolite membrane was investigated.
Liu, Jie   +3 more
core   +1 more source

Modelling of pervaporation Models to analyze and predict the mass transport in pervaporation

open access: yes, 2001
The modelling of the ma ss transfer in pervaporation is one of the fundamental aspects to understand and therefore improve the process performance. This paper reviews the different models to analyse and predict the mass transport through the selective ...
Lipnizki, F.,   +2 more
core   +2 more sources

A cascaded pervaporation process for dehydration of acetic acid

open access: yes, 2014
Pervaporation is advantageous in separating close-boiling point mixtures, azeotropes, thermally sensitive compounds and purification of chemicals. However, one pervaporation unit may not be economically feasible to simultaneously provide a high purity of
Van der Bruggen, Bart   +3 more
core   +1 more source

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