High-Selectivity Pervaporation Membranes for 1-Butanol Removal from Wastewater
- Авторлар: Grushevenko E.A.1, Podtynnikov I.A.1, Borisov I.L.1
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Мекемелер:
- Topchiev Institute of Petrochemical Synthesis
- Шығарылым: Том 92, № 11 (2019)
- Беттер: 1593-1601
- Бөлім: Sorption and Ion Exchange Processes
- URL: https://journals.rcsi.science/1070-4272/article/view/216798
- DOI: https://doi.org/10.1134/S1070427219110168
- ID: 216798
Дәйексөз келтіру
Аннотация
Possibility of using polydecylmethylsiloxane in the pervaporation removal of organic compounds from aqueous media was examined. It was shown for the example of the system with 1 wt % n-butanol in water that this material is characterized by a large separation factor (69), which twice exceeds the separation factor of the commercial membrane polymer polydimethylsiloxane. A composite membrane was produced on the basis of polydecylmethylsiloxane. The selective layer was deposited from a solution of the polymer by the touching method onto an MFFK-1 domestic microfiltration substrate. Pervaporation experiments with the new composite membranes based on polydecylmethylsiloxane were used to determine the optimal separation mode of the water–butanol mixture: delivery rate of the mixture to be separated, 1.2 cm s–1; and separation temperature 40°C. It was shown that, at a selective layer thickness of about 4.5 μm, it is possible to reach a permeability of the PDecMS/ MFFK-1 membrane that is comparable with the permeability for 1-butanol of commercial composite membranes (5.2 mol m–2 h kPa–1). However, the butanol/water selectivity for the PDecMS/MFFK-1 membrane is 3–7 times that of the commercial membranes.
Авторлар туралы
E. Grushevenko
Topchiev Institute of Petrochemical Synthesis
Хат алмасуға жауапты Автор.
Email: evgrushevenko@ips.ac.ru
Ресей, Moscow, 119991
I. Podtynnikov
Topchiev Institute of Petrochemical Synthesis
Email: evgrushevenko@ips.ac.ru
Ресей, Moscow, 119991
I. Borisov
Topchiev Institute of Petrochemical Synthesis
Email: evgrushevenko@ips.ac.ru
Ресей, Moscow, 119991
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