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	Modeling of a packed-bed electrochemical reactor for producing glyoxylic acid from oxalic acid
	Li, Jun ; Hu, Xiaohui ; Su, Yuzhong ; Li, Qingbiao ; Li QB(李清彪)
	2007-02
关键词	glyoxylic acid packed bed electrochemical reactor cooled cathode mathematical modeling continuous operation
英文摘要	A two-dimensional reactor model was established for a packed-bed electrochemical reactor with cooled cathode (PERCC) for producing glyoxylic acid from oxalic acid based on the system's reaction kinetics, mass conservation equation, and the equation of charge conservation in terms of solution-cathode potential to describe the distributions of glyoxylic acid concentration and electrolyte potential in the cathode compartment of the PERCC. The equation for a circulating mixer was also presented to account for the accumulation of glyoxylic acid in the catholyte of a batch electroreduction process. Using the orthogonal collocation approach, the partial differential equations of the model could be converted into sets of algebraic equations and be numerically solved. The effects of operating temperature, conductivity of catholyte, operating cathode potential, and volumetric flow rate of the catholyte on the current efficiency and concentration of glyoxylic acid were simulated and discussed, with emphasis on the current densities generated from main and side reactions. The model was used in a batch operation process and a continuous operation process, with the predicted results being generally in good agreement with the experimental data for both the cases. (C) 2007 Published by Elsevier Ltd.
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
内容类型	期刊论文
源URL	[http://dx.doi.org/doi:10.1016/j.ces.2007.02.021]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Li, Jun,Hu, Xiaohui,Su, Yuzhong,et al. Modeling of a packed-bed electrochemical reactor for producing glyoxylic acid from oxalic acid[J],2007.
APA	Li, Jun,Hu, Xiaohui,Su, Yuzhong,Li, Qingbiao,&李清彪.(2007).Modeling of a packed-bed electrochemical reactor for producing glyoxylic acid from oxalic acid..
MLA	Li, Jun,et al."Modeling of a packed-bed electrochemical reactor for producing glyoxylic acid from oxalic acid".(2007).

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