膜
整体
表面积体积比
材料科学
选择性
体积热力学
陶瓷
化学工程
色谱法
化学
复合材料
有机化学
生物化学
物理
工程类
催化作用
量子力学
作者
Weijie Huang,Zibo He,Бо Лю,Qing Wang,Shenglai Zhong,Rongfei Zhou,Weihong Xing
标识
DOI:10.1016/j.seppur.2023.123285
摘要
This monolithic configuration of support owns superior mechanical strength, high surface-to-volume ratio and largely reduced sealing points compared with the ceramic hollow-fiber and tubular ones. Intergrown and thin SSZ-13 membranes with surface-to-volume ratio of 680 m2/m3 were prepared the 61-channel monoliths via one-step secondary growth. The membrane thickness on the different channels was uniform. The typical membrane with efficient membrane area of ∼200 cm2 achieved ultrahigh selectivity of CO2/CH4 up to 280, which was higher than that of reported SSZ-13 membranes that always had area less than 20 cm2. The effects of temperature and pressure on separation performance of membranes on 61-channel monoliths were investigated. Our results suggest that the scalable SSZ-13 membrane on 61-channel monolith is a good candidate for natural gas sweetening.
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