节点文献
Synthesis of Nanosized SSZ-13 Zeolite and Performance of Its Mixed Matrix Membrane for CO2/CH4 Separation
【摘要】 Nanosized SSZ-13 zeolite was synthesized by traditional hydrothermal method using N,N,N-trimethyl-l-adamantanaminium hydroxide as the structure-directing agent(SDA).The influence of different preparative conditions of nanosized SSZ-13 was investigated systematically.The synthetic zeolites were characterized by X-ray powder diffraction(XRD),nitrogen physisorption,and scanning electron microscopy(SEM).By means of the self-assembled method,the thin SSZ-1 3/polyvinyl alcohol nanocomposite membranes were obtained by incorporating the nanosized SSZ-1 3 zeolite into the polymeric precursor(polyvinyl alcohol(PVA)).The permeation properties of pure CO2 and CH4 through the mixed matrix membranes(MMMs)were measured.The results showed that the highly crystalline SSZ-13 zeolite in a dispersed nanocrystal form with a controllable particle size of 100 nm could be hydrothermally synthesized by optimizing the synthetic parameters and the selectivity of CO2/CH4 of the MMMs could reach a value of 40 by changing the amount of nanosized SSZ-13 zeolite.
【Abstract】 Nanosized SSZ-13 zeolite was synthesized by traditional hydrothermal method using N,N,N-trimethyl-l-adamantanaminium hydroxide as the structure-directing agent(SDA).The influence of different preparative conditions of nanosized SSZ-13 was investigated systematically.The synthetic zeolites were characterized by X-ray powder diffraction(XRD),nitrogen physisorption,and scanning electron microscopy(SEM).By means of the self-assembled method,the thin SSZ-1 3/polyvinyl alcohol nanocomposite membranes were obtained by incorporating the nanosized SSZ-1 3 zeolite into the polymeric precursor(polyvinyl alcohol(PVA)).The permeation properties of pure CO2 and CH4 through the mixed matrix membranes(MMMs)were measured.The results showed that the highly crystalline SSZ-13 zeolite in a dispersed nanocrystal form with a controllable particle size of 100 nm could be hydrothermally synthesized by optimizing the synthetic parameters and the selectivity of CO2/CH4 of the MMMs could reach a value of 40 by changing the amount of nanosized SSZ-13 zeolite.
【Key words】 nanosized SSZ-13; polyvinyl alcohol; permeation;
- 【文献出处】 China Petroleum Processing & Petrochemical Technology ,中国炼油与石油化工(英文版) , 编辑部邮箱 ,2019年02期
- 【分类号】TQ051.893
- 【被引频次】3
- 【下载频次】32