一种新的氯化钠热化学分解循环

A New Thermochemical Decomposition Cycle of Sodium Chloride for the Preparation of Chlorine and Sodium Hydroxide

提出了一种新的热化学分解循环。研究了循环中各主要化学反应的适宜条件，并从热力学计算出了循环中的能量流动过程；用ＴＧ法研究了循环中多相反应的动力学问题，实验和理论证明了该循环具有很大的节能优势。

The aim of this study is to find a new method for the preparation of chlorine and sodium hydroxide to replace the traditional method. Titania was used as a circulating medium. A new thermochemical decomposition cycle of sodium chloxide for the preparation of chlorine and sodium hydroxide is presented. The optimum conditions of the main reactions in the cycle were obtained from a series of experimental results. Based on the related thermodynamic equations and thermodynamic data, the heat flow of the cycle system was calculated. The kinetic study of the heterogeneous reaction in the cycle was carried out by means of thermogravimetric method. The results shows that the proposed cycle demonstrates an obviously energy-saving advantage comparing with all the other methods for production of chlorine and sodium hydroxide.