Synthesis and Pervaporation Performances of Merlinoite and Phillipsite Membranes on Mullite Tube(Clays in Industry,Proceedings of the 13^<th> International Clay Conference)
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概要
- 論文の詳細を見る
For the purpose of screening of zeolite membranes, which are highly resistant to acid, merlinoite (MER) and phillipsite (PHI) membranes were synthesized for the first time, and pervaporation (PV) performance of those membranes were evaluated using 5〜95 wt% ethanol solution. Each zeolite membrane was synthesized on a mullite tube by secondary growth of seed crystals, which were rubbed on the outer surface of the tube. The permeance of pure N_2 through those membranes was below 1.4×10^<-9>mol/m^2/Pa/s at 50℃. By SEM observation, the thickness of the membrane was 10-50μm. In PV performance, each membrane showed hydrophilic behavior. When ethanol concentration was 90 wt% in the feed solution, the permeation fluxes (Q) of the MER and PHI membranes were 0.8〜1.1kg/m^2/h at 75℃. The water/ethanol separation factor (α) was over 10,000 for MER membrane. In the evaluation of stabilities of the zeolite against acid, the changes in the XRD pattern and the composition of MER and PHI were much smaller in comparison with the case of FAU and CHA. Thus, it can be expected to use MER and PHI membranes for dehydration directly from the acid solutions like biomass.
- 日本粘土学会の論文
著者
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Hasehawa Yasuhisa
Aist Compact Chemical Process Center
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Kiyozumi Yoshimichi
Aist Compact Chemical Process Center
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Hakuta Yukiya
Measurement Solution Research Center National Institute Of Advanced Industrial Science And Technolog
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Mizukami Fujio
Research Center For Compact Chemical Process
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Mizukami Fujio
National Institute For Advanced Industrial Science And Technology (aist) Research Center For Compact
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Hoshi Yasushi
National Institute Of Advanced Industrial Science And Technology (aist)
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Kiyozumi Yoshimichi
Laboratory For Membrane Chemistry Aist Tohoku
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MIZUKAMI FUJIO
AIST Research Center for Compact Chemical Process
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Nagase Takako
Aist Compact Chemical Process Center
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Mizukami Fujio
Aist Ccp
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Mizukami Fujio
Research Center For Compact Chemical Process National Institute Of Advanced Industrial Science And T
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