Synthesis of Nanosized SSZ-13 Zeolite and Performance of Its Mixed Matrix Membrane for CO_2/CH_4 Separation
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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 CO_2 and CH_4 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.
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 CO_2 and CH_4 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.
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 CO_2 and CH_4 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.
引文
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[2]Shi Dan,Wu Lixue.A research on the disparity of China’s regions’energy efficiency and its cause of formation[J]Management World,2008(2):35-43
[3]Cai Jiecong,Han Gaoyan,Guo Xutao,et al.Development and suggestion of natural gas distributed energy in Zhejiang province[J].Zhejiang Electric Power,201938(1):25-29
[4]Zhang Hongwei,Jiao Wenling,Wang Kuichang Purification and liquefaction technology of natural Gas[J]gas and Heat,2004,24(3):170-172
[5]Yang Chaoyue,Chang Honggang,He Jinlong,et al Discussion on the purification of natural gas based on GB17820-2018[J].Chemical Engineering of Oil and Gas2019,48(1):1-6
[6]Cui Jiangjiang.Research and application of improving gas yield of natural gas products[J].Modern Chemical Industry,2018,38(12):192-195
[7]Li Shenghui,Ouyang Sheng,Yao Yanmin.Selection of optimization scheme for natural gas purification process[J]Chemical Intermediate,2017,(11):88-89
[8]Li Meng.Synthesis of PETEDA and performance of its composite membrane for CO2/CH4 separation[D].Tianjin:Tianjin University,2006
[9]Tin Peishi,Chung Taishung,Jiang Lanyin.Carbon-zeolite composite membranes for gas separation[J].Carbon,200543:2013-2032
[10]Huang Junzhi.Analysis and application of natural gas liquefaction process[J].Technological Development of Enterprise,2017,36(12):46-47
[11]Tabe-Mohammadi,Abdulreza.A review of the applications of membrane separation technology in natural gas treatment[J].Separation Science and Technology,199934(10):2095-2111
[12]Clarizia G,Drioli E.CO2 separation by membranes in natural gas processing[J].NATO Science Series,II:Mathematics,Physics and Chemistry,2005,191:287-292
[13]Cook J,Losin S.Membranes provide cost-effective natural gas processing[J].Hydrocarbon Processing,1995,74(4):79-80
[14]Nezhadmoghadam A.Application of membrane in gas separation processes:its suitability and mechanisms[J]Petroleum and Coal,2010,52(2):69-80
[15]White S,Blinka A,Kloczewski A,et al.Properties of a polyimide gas separation membrane in natural gas streams[J].Journal of Membrane Science,1995,103(1/2):73-82
[16]Cao Chun,Chung Tai-Shung,Liu Ye,et al.Chemical cross-linking modification of 6FDA-2,6-DAT hollow fiber membranes for natural gas separation[J].Journal of Membrane Science,2003,216(1/2):257-268
[17]Omole C,Bhandaril A,Miller J.Toluene impurity effects on CO2 separation using a hollow fiber membrane for natural gas[J].Journal of Membrane Science,2011369(1/2):490-498
[18]Mary L,Asim K,Anna J,et al.Influence of zeolite crystal size on zeolite-polyamide thin film nanocomposite membranes[J].Langmuir,2009,25(17):10139-10145
[19]Zones S I.Zeolite SSZ-13 and its method of preparation:The Unites States,US4544538[P].1985-10-01
[20]Dustin F,Raul L.Copper coordination in Cu-SSZ-13 and Cu-SSZ-16 investigated by variable-temperature XRD[J]Journal of Physical Chemistry C,2010,114(3):1633-1640
[21]Xiong Xin,Yuan Dingzhong,Wu Qinming,et al.Synthesis of high-silica CHA zeolite from FAU zeolite in the absence of water[J].Journal of Materials Chemistry A,2017,5(19):9076-9080
[22]Ren limin.New Routes for Synthesizing Zeolites[D]Changchun:Jilin University,2012
[23]Liu Qingling,Wang Tonghua,Guo Hongchen,et al Controlled synthesis of high performance carbon/zeolite T composite membrane materials for gas separation[J].Microporous and Mesoporous Materials,2009(120):460-466