Pervaporation separation of ethanol–water mixtures through B-ZSM-11 zeolite membranes on macroporous supports

Chai, Lijun; Li, Huazheng; Zheng, Xin; Wang, Jinqu; Yang, Jianhua; Lu, Jinming; Yin, Daqiang; Zhang, Yan

doi:10.1016/j.memsci.2015.01.054

Cited by 38 publications

(16 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It can be stated at higher ethanol concentration the separation effectiveness of the organophilic pervaporation membranes are decreased, similar tendency have been already published by Slater et al [25], Lazarova et al [27], Vane [34], Chai et al [35] and Fu et al [36]. Table 2, Table 3 and Table 4 summarize the estimated values of transport coefficients, activation energies, exponential parameters and minimized objective functions of the two models.…”

Section: Resultssupporting

confidence: 80%

Platform Molecule Removal from Aqueous Mixture with Organophilic Pervaporation: Experiments and Modelling

Haáz

Valentínyi

Tarjani

et al. 2018

Period. Polytech. Chem. Eng.

View full text Add to dashboard Cite

show abstract

Section: Resultssupporting

confidence: 80%

Platform Molecule Removal from Aqueous Mixture with Organophilic Pervaporation: Experiments and Modelling

Haáz

Valentínyi

Tarjani

et al. 2018

Period. Polytech. Chem. Eng.

View full text Add to dashboard Cite

show abstract

“…Recently, great efforts have been devoted to the development of suitable pervaporation membranes for removal of VOCs from water. Inorganic membranes, such as Ge‐ZSM‐5 and phenyl functionalized silica membranes, showed excellent separation performance for organics/water mixtures . However, their applications have been somewhat limited by the difficulty in fabrication of continuous inorganic membrane structures on technologically scalable, low‐cost platforms .…”

Section: Introductionmentioning

confidence: 99%

High‐performance PDMS membranes for pervaporative removal of VOCs from water: The role of alkyl grafting

Zhou

Chen

et al. 2016

J of Applied Polymer Sci

View full text Add to dashboard Cite

To improve the pervaporation performance of PDMS membrane, alkyl groups with different chain length were grafted into PDMS matrix. The prepared membranes were characterized by ATR-IR, DSC, TGA, PALS, and tensile testing. The effects of alkyl grafting on pervaporation performance of PDMS membrane were investigated in separation of ethyl acetate/water mixture. Experimental results show that the separation factor of PDMS membrane is largely improved by alkyl grafting because of the enhanced preferential sorption of ethyl acetate, and this improvement depends on alkyl grafting ratio and alkyl chain length. The total flux of PDMS membrane reduces after alkyl grafting owing to the decreased free volume. When grafting ratio is above 6.9%, membrane grafted with shorter alkyl groups is preferred for pervaporation. The best pervaporation performance is achieved by 9% octyl grafted PDMS membranes with a separation factor of 592 and a total flux of 188 gm 22 h 21 in separation of 1% ethyl acetate/water mixture at 40 8C. Moreover, this octyl grafted PDMS membrane also exhibits excellent separation performance in removal of butyl acetate, methyl-tert-butyl ether, and n-butanol from water.

show abstract

“…32 and can be explained by the change in the hydrophobicity of B-ZSM-5 membranes as shown in Figures 6 and 7 and Figure S9 in Supporting Information. Figure 6 shows the water contact angles on surfaces of B-ZSM-5 with different B/Si ratios and silicalite-1 membranes.…”

Section: 32mentioning

confidence: 97%

Ethanol perm‐selective B‐ZSM‐5 zeolite membranes from dilute solutions

Chai

Yang

et al. 2016

AIChE Journal

Self Cite

View full text Add to dashboard Cite

in Wiley Online Library (wileyonlinelibrary.com) Boron-substituted MFI (B-ZSM-5) zeolite membranes with high pervaporation (PV) performance were prepared onto seeded inexpensive macroporous a-Al 2 O 3 supports from dilute solution and explored for the separation of ethanol/water mixtures by PV. The effects of several parameters on microstructures and PV performance of the B-ZSM-5 membranes were examined systematically, including the seed size, synthesis temperature, crystallization time, B/Si ratio, H 2 O/SiO 2 ratio and silica source. A continuous and compact B-ZSM-5 membrane was fabricated from solution containing 1 tetraethyl orthosilicate/0.2 tetrapropylammonium hydroxide/0.06 boric acid/600 H 2 O at 448 K for 24 h, showing a separation factor of 55 and a flux of 2.6 kg/m 2 h along with high reproducibility for a 5 wt % ethanol/water mixture at 333 K. It was demonstrated that the incorporation of boron into mobile five (MFI) structure could increase the hydrophobicity of B-ZSM-5 membrane evidenced by the improved contact angle and amount of the adsorbed ethanol, and thus enhance the PV property for ethanol/water mixtures.

show abstract

Pervaporation separation of ethanol–water mixtures through B-ZSM-11 zeolite membranes on macroporous supports

Cited by 38 publications

References 39 publications

Platform Molecule Removal from Aqueous Mixture with Organophilic Pervaporation: Experiments and Modelling

Platform Molecule Removal from Aqueous Mixture with Organophilic Pervaporation: Experiments and Modelling

High‐performance PDMS membranes for pervaporative removal of VOCs from water: The role of alkyl grafting

Ethanol perm‐selective B‐ZSM‐5 zeolite membranes from dilute solutions

Contact Info

Product

Resources

About