膜科学与技术

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A novel SPES/PES/NWF composite catalytic membrane for ethyl acetate production

Authors： GUO Shiwei , SHI Wenying, HE Benqiao, LI Jianxin, CUI Zhenyu, YAN Feng, CHENG Yu

Units： School of Materials Science and Engineering, Tianjin Polytechnic University, State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Tianjin 300387, P. R. China

KeyWords： CCM; Esterification; Ethyl acetate; Pervaporation; Sulfonated polyethersulfone

ClassificationCode：TQ 028.8

year,volume(issue):pagination： 2014,34(5):22-26

Abstract：

Abstract PET non-woven fiber (NWF) as a support and the sulfonated polyethersulfone (SPES)/polyethersulfone (PES) as blending polymer were used to prepare a SPES/PES/NWF composite catalytic membrane (CCM) with high porosity by a non-solvent induced phase inversion process. Then the membranes were employed to carry out the esterification of acetic acid with ethanol into the fixed membrane reactor. The results showed that the acetic acid conversion reached 75.5% in a single flow-through mode at the initial ethanol/acetic acid molar ratio of 3.9:1, reaction temperature of 348K and the residence time of 330s. The acetic acid equilibrium conversion was 91.0% in a closed-loop flow-through mode. For the pervaporation-assisted esterification in the closed-loop mode, a new equilibrium conversion reached 95.4%. And this novel composite membrane catalytic technology has a potential in synthesis of ethyl acetate and related esters.

Funds：

国家自然科学基金（批准号：21174104，21204063）；长江学者和创新团队发展计划资助（批准号：IRT13084)

AuthorIntro：

郭士伟（1988-），男，河北省沧州市人，硕士研究生，主要从事复合催化膜的制备与膜催化酯化的研究。*联系人，电话：022-83955078，E-mail：hebenqiao@tjpu.edu.cn

Reference：

[1] 闫瑞一.催化精馏技术合成乙酸酯的研究[D]:[学位论文].广西：广西大学，2005.
[2] Gurav H, Bokade V V. Synthesis of ethyl acetate by esterification of acetic acid with ethanol over a heteropolyacid on montmorillonite K10[J]. J. Nat. Gas. Chem., 2010, 19: 161-164.
[3] Shi Wenying, He Benqiao, Li Jianxin. Esterification of acidified oil with methanol by SPES/PES catalytic membrane[J]. Bioresour. Technol., 2011, 102: 5389-5393.
[4] 刘庆林, 肖剑, 张志炳. PVA-Zr (IV)膜催化酯化乙酸和乙醇酯化反应的性能[J]. 化工学报, 2003, 54(1): 64-67.
[5] Shah T N, Ritchie S M C. Esterification catalysis using functionalized membranes[J]. Appl. Catal. A., 2005, 296: 12-20.
[6] Radivojevic D, Avramescu M, Seshan K, et al. Frozen slurry catalytic reactor: A new structured catalyst for transient studies in liquid phase[J]. Appl. Catal. A., 2008, 351: 159-165.
[7] Bedard J, Chiang H, Bhan A. Kinetics and mechanism of acetic acid esterification with ethanol on zeolites[J]. J. Catal., 2012, 290: 210-219.
[8] Figueiredo K C D S, Salim V M M, Borges C P. Synthesis and characterization of a catalytic membrane for pervaporation-assisted esterification reactors[J]. Catal. Today., 2008, 133–135: 809-814.
[9] 温馨, 马晓华, 许振良, 等. 具有催化与渗透汽化双功能的纳米TiO2和Al2O3填充复合膜性能[J]. 膜科学与技术, 2012, 32(3), 1-5.
[10] Zhang Weidong, Qing Weihua, Chen Ning, et al. Enhancement of esterification conversion using novel composite catalytically active pervaporation membranes[J]. Journal of membrane science, 2014, 451: 285-292.

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