Results 231 to 240 of about 546,844 (290)

Biosynthesis of O-Prenylated Chaetophenols Triggers Nonenzymatic Pathways toward Structural Diversity. [PDF]

open access: yesOrg Lett
Matsui H   +8 more
europepmc   +1 more source

Mass transfer modelling for solvent dehydration by pervaporation

Separation and Purification Technology, 2000
Abstract A set of equations for design and optimisation of solvent dehydration by pervaporation is developed based on a model of mass transport through membranes that permeate preferentially water. This model assumes a mechanism of sorption–diffusion–desorption and introduces a diffusion coefficient which is dependent on the membrane water ...
Jorge Miguel Neto, Maria Norberta Pinho
exaly   +2 more sources

Breakthrough in pervaporation membrane for dehydration of solvent streams [PDF]

open access: yesNPT procestechnologie, 2008
After several years of development, researchers at the Universities of Twente and Amsterdam and the Energy research Centre of the Netherlands have succeeded in obtaining a membrane system which is hydrothermally stable under semi-industrial dehydrating conditions at elevated tempreature.
Brinkman, H.W.   +4 more
core   +3 more sources

Solvent effect in H-BEA catalyzed cyclohexanol dehydration reaction

Journal of Chemical Physics
The solvent effect on H-BEA catalyzed cyclohexanol dehydration was investigated in water, dioxane, and cyclohexanol. The dynamic evolution of the Brønsted acid site of zeolite and its interaction with reactant molecules in different solvents were explored with ab initio molecular dynamics simulations, providing reliable configuration sampling to obtain
Huimin Chen
exaly   +3 more sources

Analysis of Dynamic Characteristics and Control Strategies of a Solvent Dehydration Distillation Column in a Purified Terephthalic Acid Plant

open access: yesProcesses, 2020
In this study, a solvent dehydration column of purified terephthalic acid (PTA) plant was used as the research object. Based on a dynamic model of the solvent dehydration column, a dynamic sensitivity analysis of the key parameters was carried out using ...
Zeqiu Li
exaly   +2 more sources

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