Effect of Side Substituent on Comb-like Polysiloxane Membrane Pervaporation Properties During Recovery of Alcohols C2-C4 from Water

被引：2

作者：

Grushevenko, Evgenia ^{[1
]}

Chechenov, Islam ^{[1
]}

Rokhmanka, Tatyana ^{[1
]}

Anokhina, Tatiana ^{[1
]}

Bazhenov, Stepan ^{[1
]}

Borisov, Ilya ^{[1
,2
]}

机构：

[1] Russian Acad Sci, AV Topchiev Inst Petrochem Synth, Leninsky Prospect 29, Moscow 119991, Russia

[2] Russian Acad Sci, Fed Res Ctr, Kazan Sci Ctr, Lobachevskogo St 2-31, Kazan 420111, Tatarstan, Russia

来源：

POLYMERS | 2024年 / 16卷 / 24期

关键词：

comb-like polysiloxane; pervaporation; alcohol recovery; water treatment; polymeric membrane; BUTANOL RECOVERY; GAS PERMEATION; SEPARATION; PDMS; FERMENTATION; PERMEABILITY; ETHANOL; ACETONE; PERFORMANCE; REMOVAL;

D O I：

10.3390/polym16243530

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The pervaporation properties of membranes based on comb-like polysiloxanes when C2-C4 alcohols are removed from water were studied for the first time. It was established that membranes based on comb-like polysiloxanes with linear aliphatic and organosilicon substituents have increased permeability selectivity for C3+ alcohols. The obtained results were interpreted from the point of view of the solubility of the components of the separated mixture in polysiloxanes. It was shown that membranes based on polysiloxanes with linear substituents have increased butanol/water permeability selectivity (2.5-3.7). The achieved selectivity values correspond to the level of highly selective zeolite membranes, which allows for a reduction in energy consumption for the pervaporation removal of butanol by more than two times.

引用

页数：15

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