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Experimental investigation of processing parameters and effects on chloralkali products in an electrolysis based chloralkali reactor

机译:电解氯碱反应器中工艺参数及其对氯碱产物影响的实验研究

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摘要

In the present study, the effects of different processing parameters on rate of hydrogen, chlorine and sodium hydroxide production are experimentally studied in a newly designed chloralkali process reactor. It is a multi membrane reactor which can also be coupled with a photochemical hydrogen production process. The parameters, which are studied in the present study, include applied voltage varied from 3 V to 20 V, brine concentration varied from 150g/L to 225 g/L, electrolyte concentration in catholyte compartment varied from 35.3 g/L to 58.8 g/L, electrode height, temperature and different anode materials. A factorial design of experiments is applied and an analysis of variance (ANOVA) is used to analyze the experimental results. Energy and exergy efficiencies are also determined and discussed. The results show that graphite appears to be the most stable anode material. Brine and electrolyte concentration do not affect the production rate of products. Increasing the temperature increases the production but also increases the energy input to the system. Varying electrode height changes the current density which has a significant effect on rate of hydrogen production.
机译:在本研究中,在新设计的氯碱工艺反应器中,通过实验研究了不同工艺参数对氢气,氯气和氢氧化钠生产速率的影响。它是一种多膜反应器,也可以与光化学制氢工艺耦合。在本研究中研究的参数包括施加电压从3 V到20 V不等,盐水浓度从150g / L到225 g / L不等,阴极液室内的电解质浓度从35.3 g / L到58.8 g / L不等。 L,电极高度,温度和阳极材料的不同。应用了析因设计实验,并使用方差分析(ANOVA)来分析实验结果。能量和火用效率也得到确定和讨论。结果表明,石墨似乎是最稳定的阳极材料。盐水和电解质浓度不影响产品的生产率。温度升高会增加产量,但也会增加输入系统的能量。电极高度的变化会改变电流密度,这对氢气的产生速率有重大影响。

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