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International Conference on Information Technologies in Business and Industry 2016 IOP Publishing IOP Conf. Series: Journal of Physics: Conf. Series 803 (2017) 012148 International Conference on Recent Trends in Physics 2016 (ICRTP2016) Journal of Physics: Conference Series 755 (2016) 011001 doi:10.1088/1742-6596/803/1/012148 IOP Publishing doi:10.1088/1742-6596/755/1/011001 Modeling of the process of electrolysis production of caustic, chlorine and hydrogen E A Shulaeva1, N S Shulaev1, J F Kovalenko1 1Branch of the Ufa State Petroleum Technological University, 2, October PR, Sterlitamak, Bashkortostan 453118, Russia E-mail: eshulaeva@mail.ru Abstract. The present work describes the modeling parameters of an electrolyzer in production of caustic, hydrogen and chlorine by electrolysis. The dependence of temperature on the current-voltage characteristics of the electolyzer and the ratio that determines the current as a function of the design parameters were found. It is shown that an increase in the current in the electrolyzer with increased temperature is due to decreasing viscosity of the electrolyte and reducing the radii of solvated ions and sodium chloride. The yield of sodium hydroxide, chlorine and hydrogen was determined based on the technological and construction parameters of the cell. These relations are used in the developed simulation and modeling software. 1. Introduction Improvement and modernization of chemical-technological processes for obtaining sodium hydroxide, chlorine and hydrogen require a corresponding development of computer-modeling systems that provide determination of physical and chemical parameters that can not be directly measured in the course of chemical reactions, determination and maintenance of optimal regimes pro-conduct processes promoting an accident-free operation. To use these intelligent systems of modeling and control of technological systems requires professionals with certain skills to operate computer systems and to have knowledge of the features of chemical technology of the process. The development of information technology makes it possible to create computer training systems that allow obtaining professional skillsfor process management, complementing [1-4]. This arcitcle demonstrates the possibility of simulation and modeling of the complex of one of the most common chemical productions - the process of obtaining sodium hydroxide, chlorine and hydrogen by electrolysis - which allows simulating the operation of the technological equipment when changing process parameters (current-carrying capacity, the concentration of NaCl in brine, temperature). 2. Results and Discussion The first stage of the process of obtaining caustic soda with the formation of chlorine gas and sodium amalgam is carried out in the electrolyzer. Then the amalgam is fed to decomposer, wherein caustic soda and hydrogen are obtained; circulation of mercury is performed by a pump [5, 6]. The elecrolyzer has a floating mercury cathode. An anode is generally made from ruthenium and Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Published under licence by IOP Publishing Ltd 1PDF Image | electrolysis production of caustic chlorine and hydrogen
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