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Separation of thiophene using SiO2 and Ag+-SiO2 filled polyether block amide (PEBAX) composited membranes via pervaporation

Authors： LIU Kun*, HAN Jian-jian, Fu xia-na, Cheng jing-jing

Units： Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi University, Nanning 530004, China

KeyWords： polyether block amide (PEBAX); SiO2; membrane; pervaporation; thiophene

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2015,35(4):7-12

Abstract：

Silica microspheres and silver/silica core–shell microspheres were prepared by the method of Stöber. Composite membrane of polyether block amide /polyacrylonitrile (PEBAX/PAN) and mixed matrix membranes with nano-fumed silica, silica microspheres and Ag+-SiO2 core–shell microspheres as the filler, were prepared. The formation and composition of the particles before modified and after were characterized by XRD and FTIR, respectively. The structure morphology of Ag+-SiO2 core–shell microspheres and the membranes were respectively characterized by SEM. In addition, swelling situation of membranes was explored. The experimental results display that the swelling degree of the membranes in model gasoline with thiophene and n-heptane increases with thiophene content. The swelling degree of the membranes as follow: Ag+-SiO2 filled membrane（PMSA）> nano-fumed silica filled membrane（PMS1）> silica microspheres（PMS2）> composite membrane（PM）. The separation abilities to thiophene of four membranes were systematically investigated by pervaporation experiments. That experimental results showed that separation factor of three filled-composite membranes all was intensified, but their fluxes decreased slightly. It also exhibited the PMSA has the best separation performance, its separation factor and the total flux were 4.2 and 2.8kg·m-2·h-1 respectively, under the thiophene concentration 1000ppm and at 30℃.

Funds：

广西石化资源加工及过程强化技术重点实验室主任基金（2013Z009）；广西自然科学基金（2014jjAA20079）

AuthorIntro：

刘琨（1962—），女，广西南宁，博士，教授，广西大学化学化工学院博士生导师，主要从事膜分离研究。

Reference：

[1] 陈剑，李继定，亓荣彬，等.PEG/PEI复合膜渗透汽化汽油脱硫研究（1）制膜条件影响[J].膜科学与技术，2009, 29（4）: 39-43..
[2] 陈天泉，陈金勋，李继定，等.正庚烷/有机硫体系渗透汽化脱硫[J].膜科学与技术，2007, 27（4）: 87-90.
[3] 孙志娟，余谟鑫，张心亚，等.油品中噻吩类硫化物脱除技术研究进展[J].化工进展，2005, 24（9）: 1002-1005.
[4] Mortaheb H R, Ghaemmaghami F, Mokhtarani B. A Review on Removal of Sulfur Components from Gasoline by Pervaporation [J]. Chem Eng Res Des, 2012, 90: 409-432.
[5] 林立刚，张玉忠.膜技术在汽油脱硫中应用的新进展[J].石油学报(石油加工)，2010，26（3）: 476-485.
[6] 孔瑛，张玉忠，林立刚，等.汽油脱硫用复合膜的制备及性能[J].高分子材料科学与工程，2010，26（5）: 127-129.
[7] 车竹梅，孙本惠，陈翠仙，等.ZSM一5分子筛填充硅橡胶膜在乙醇／水体系中的溶胀特性[J].膜科学与技术，2009, 29（4）: 53-56.
[8] 刘琨，陈松.碳分子筛填充聚醚共聚乙酰胺膜渗透汽化分离水溶液中的醋酸正丁酯[J].膜科学与技术，2010, 30（2）: 45-51.
[9] Cao R J, Zhang X F, Wu H, et al. Enhanced pervaporative desulfurization by polydimethylsiloxane membranesembedded with silver/silica core-shell microspheres[J]. J Hazard Mater, 2011, 187: 324-332.
[10] Liu W P, Li B, Cao R J, et al. Enhanced pervaporation performance of poly (dimethyl siloxane) membrane by incorporating titania microspheres with high silver ion loading [J]. J Membr Sci, 2011, 378: 382– 392.
[11] Qi R B, Wang Y J, Chen J, et al. Pervaporative desulfurization of model gasoline with Ag2O-filled PDMS membranes [J]. Sep Purif Technol, 2007, 57: 170–175.
[12] Qi R B, Wang Y J, Chen J, et al. Removing thiophenes from n-octane using PDMS–AgY zeolite mixed matrix membranes [J]. J Membr Sci, 2007, 295: 114–120.
[13] Lin L G, Wang A D, Dong M M et al. Sulfur removal from fuel using zeolitespolyimide mixed matrix membrane adsorbents[J]. J Hazard Mater, 2012, 203-204: 204-212.
[14] 陈剑，李继定，亓荣彬，等. PDMS/PEI复合膜对FCC汽脱硫性能(III)Ag2O载体促进传递[J].膜科学与技术，2009, 29（3）: 39-44.
[15] 姜小阳，李霞.纳米二氧化硅微球的应用及制备进展[J].硅酸盐通报，2011, 30（3）: 577-582.
[16] Liu K, Tong Z F, Liu L et a1. Separation of Organic Compounds from Water by Pervaporation in The Production of N-n-butyl Acetate via Esterification by Reactive Distillation[J]. J Membr Sci, 2005, 256: 193-201.
[17] Ahmet E Y, Hilmioglu N D, Tulbentci S. Separation of Benzene/Cyclohexane Mixtures by Pervaporation Using PEBA Membranes [J]. Desalination, 2008, 219: 14-25.
[18] Liu K, Fang C J, Li Z Q et a1. Separation of thiophene/n-heptane mixtures using PEBAX/PVDF-composited membranes via pervaporation[J]. J Membr Sci, 2014, 451: 24-31.
[19] Timothy C M, Rolande B, Isabelle C, et a1.Silver salt facilitated transport membranes for olefin/paraffin separations: Carrier instability and a novel regeneration method[J]. J Membr Sci, 2013, 447: 177-189.
[20] Tan H F, Wu Y H, Zhou Y, et a1. Pervaporative recovery of n-butanol from aqueous solutions with MCM-41 filled PEBA mixed matrix membrane[J]. J Membr Sci, 2014, 453: 202-311.
[21] 邹昀，杨超，刘琨，等.醋酸丁酯酯化反应体系组分在PEBA膜中的吸附性能[J].高校化学工程学报，2009, 23（1）: 18-22.
[22] 刘琨，杨超，陈松，等.聚醚共聚酰胺(PEBAX)膜的溶胀和渗透汽化行为研究[J].高校化学工程学报，2010, 24（1）: 16-21.
[23] Werner S, Arthur F. Controlled Growth of Monodisperse Silica Spheres in the Micron Size Range[J]. J Colloid Interf Sci,1968, 26: 62-69.
[24] Sampranpiboon P R, Jiraratananon D U, Hang R Y M. Pervaporation separation of ethyl butyrate and isopropanol with polyether block amide (PEBAX) membranes [J]. J Membr Sci, 2000, 173: 53-59.
[25] 郭树军，周新木，刘厚凡，等.稻壳制备高纯白炭黑的工艺研究[J].粮油食品科技，2010，18(5)：13-16.
[26] 张晓丹，张东辉.介孔二氧化硅负载银离子吸附脱除甲硫醚[J].化工进展，2011，30：268-271.
[27] 陈和生，孙振亚，邵景昌.八种不同来源二氧化硅的红外光谱特征研究[J].硅酸盐通报，2011,30(4)：934-937.
[28] Le N L, Wang Y, Chung T S. Pebax/POSS mixed matrix membranes for ethanol recovery from aqueous solutions via pervaporation[J]. J Membr Sci, 2011, 379(1-2): 174-183.
[29] 孙杰，沈贵.Ag+-13X分子筛吸附汽油中苯并噻吩的性能[J].化工科技，2008，16(5):5-8.

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