The membranes were found to have good potential for breaking the azeotrope of THF at 6% concentration of water. An increase in PVA content in the blend caused a reduction in the flux and an increase in selectivity. Among the blends tested in the study, the 5:1 PVA/PEI blend membrane ...
Two of the most common methods for separating a binary homogeneous azeotrope are p... E Lladosa,JB Montón,MC Burguet - 《Chemical Engineering & Processing Process Intensification》 被引量: 51发表: 2011年 A Computational Study on the Separation of Acetonitrile and Water Azeotropic Mixture Using ...
Keywords:distillation,reactivedistillation,azeotrope,tetrahydrofuran 1 引言 恒沸物的精馏提纯,通常采用恒沸精馏或萃取精馏 [1] 。这两种精馏技术均需要加入第3种组分,因而 需要后续提纯过程。依据压力对恒沸点的影响,可以尝试改变精馏操作压力以改变恒沸物的组成。Hor2 ...
Extraction PVC from THF soln. - by azeotropic distillation of THF with wateris polymerised in tetrahydrofuran and PVC extracted by distilling off solvent as azeotrope with H2O. 10-50 (pref. 15-35) wt. % H2O is added to the soln. of vinyl chloride and is distilled at 1 bar press. PVC...
Extraction PVC from THF soln. - by azeotropic distillation of THF with wateris polymerised in tetrahydrofuran and PVC extracted by distilling off solvent as azeotrope with H2O. 10-50 (pref. 15-35) wt. % H2O is added to the soln. of vinyl chloride and is distilled at 1 bar press. PVC...
AzeotropeExtractive distillationPressure swing distillationTHF-waterTACOptimizationIn the present work, extractive and pressure-swing distillation methods are analyzed in detail through steady state ASPEN Plus simulations to propose the most economic method for separation of equimolar mixture of THF-Water. ...
Two of the most common methods for separating a binary homogeneous azeotrope are p... E Lladosa,JB Montón,MC Burguet - 《Chemical Engineering & Processing Process Intensification》 被引量: 51发表: 2011年 A Computational Study on the Separation of Acetonitrile and Water Azeotropic Mixture Using ...
The separation of water-THF mixtures was performed with the supported membranes over a wide range of water concentrations in the feed mixture, i.e., from the azeotrope range up to 30?wt%, to evaluate the performance and stability of the thin active layer. SEM was used to visualize the ...
The THF–water mixture is homogeneous and forms an azeotrope that cannot be separated with a single binary distillation column. From a thermodynamic point of view, the presence of an azeotrope indicates non-ideal behavior of the mixture. We considered a binary azeotropic distillation plant with ...
Extraction PVC from THF soln. - by azeotropic distillation of THF with wateris polymerised in tetrahydrofuran and PVC extracted by distilling off solvent as azeotrope with H2O. 10-50 (pref. 15-35) wt. % H2O is added to the soln. of vinyl chloride and is distilled at 1 bar press. PVC...