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An electrocatalytic membrane reactor and its optimization for electrochemical synthesis of propionic acid
Authors： LI Jiao, WANG Hong, LI Jianxin*, GUAN Qiqi, YANG yang
Units： State Key Laboratory of Hollow Fiber Membrane Materials and Processes, School of Materials Science and Engineering, Tianjin Polytechnic University, 399 Binshui West-Road, Tianjin 300387, P. R. China
KeyWords： Electrochemical organic synthesis; MnO2/Ti electrocatalytic membrane reactor; N-propanol; Propionic acid
ClassificationCode：TQ035
year,volume(issue):pagination： 2013, 33(6):64-70

Abstract：

An electrocatalyitic membrane as the anode and a stainless steel tube surrounding the membrane as the cathode were connected by a DC regulated power supply to constitute an ECMR, which was employed to produce propionic acid from n-propanol. The effect of operating parameters such as operating voltage (A), pH value of the solution (B), residence time (C) and reaction temperature (D) in the ECMR on n-propanol conversion and propionic acid selectivity were investigated through the response surface method. Results showed the optimum conditions obtained were operating voltage (A) of 2.87 V, pH value of the solution (B) of 4.82, residence time (C) of 22.55 min and the reaction temperature (D) of 52.63 ?C. It was found that the n-propanol conversion and propionic acid selectivity obtained under the optimum conditions were 99.82% and 79.91% after 75 min of reaction time, respectively.

Funds：
国家自然科学基金（21076156; 21206119）；教育部高等学校博士学科点专项科研基金（20101201110002）

AuthorIntro：
李娇(1987-)，女，湖北咸宁人，硕士研究生，主要从事电催化膜方面的研究。*通讯人waho7808@163.com; jxli0288@yahoo.com.cn

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