Single Gas Permeance Performance of High Silica SSZ-13 Zeolite Membranes
AbstractContinuous and high silica SSZ-13 zeolite membranes were prepared on porous mullite supports from high SiO2/Al2O3 ratio or aluminum-free precursor synthesis gel. Single gas permeance (CO2 and CH4) of the high silica SSZ-13 zeolite membrane was decreased with the SiO2/Al2O3 ratio in the precursor synthesis gel, while the ideal CO2/CH4 selectivity of the membrane was gradually increased. Moreover, effects of synthesis conditions (such as H2O/SiO2 and RNOH/SiO2 ratios of precursor synthesis gel, crystallization time) on the single gas permeance performance of high silica SSZ-13 zeolite membranes were studied in detail. Medium H2O/SiO2 and RNOH/SiO2 ratios in the initial synthesis gel were crucial to prepare the good CO2 perm-selective SSZ-13 zeolite membrane. When the molar composition of precursor synthesis gel, crystallization temperature and time were 1.0 SiO2: 0.1 Na2O: 0.1 TMAdaOH: 80 H2O, 160 °C and 48 h, CO2 permeance and ideal CO2/CH4 selectivity of the SSZ-13 zeolite membrane were 0.98 × 10−7 mol/(m2·s·Pa) and 47 at 25 °C and 0.4 MPa. In addition, the SiO2/Al2O3 ratio of the corresponding SSZ-13 zeolite was 410 by X-ray fluorescence spectroscopy. View Full-Text
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Liang, L.; Zhu, M.; Chen, L.; Zhong, C.; Yang, Y.; Wu, T.; Wang, H.; Kumakiri, I.; Chen, X.; Kita, H. Single Gas Permeance Performance of High Silica SSZ-13 Zeolite Membranes. Membranes 2018, 8, 43.
Liang L, Zhu M, Chen L, Zhong C, Yang Y, Wu T, Wang H, Kumakiri I, Chen X, Kita H. Single Gas Permeance Performance of High Silica SSZ-13 Zeolite Membranes. Membranes. 2018; 8(3):43.Chicago/Turabian Style
Liang, Li; Zhu, Meihua; Chen, Le; Zhong, Caijun; Yang, Yiming; Wu, Ting; Wang, Heli; Kumakiri, Izumi; Chen, Xiangshu; Kita, Hidetoshi. 2018. "Single Gas Permeance Performance of High Silica SSZ-13 Zeolite Membranes." Membranes 8, no. 3: 43.
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