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Electrochemical analysis of a photoelectrochemical chloralkali reactor

机译：光电化学氯碱反应器的电化学分析

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摘要

In the present study, the electrochemical model for a newly designed photo electrochemical hydrogen production reactor is discussed. The reactor integrates the photochemical hydrogen production with an electrochemical chloralkali process. To neutralize the hydroxyl ions into the chloralkali process, the ideal minimum required potential is 2.18 V. However, there are losses in the solution, membranes and electrodes. These losses should be calculated to find the exact voltage requirement of the photoelectrochemical hydrogen production reactor. An electrochemical model is developed to calculate these losses in the reactor. Effect of brine concentration, electrolyte concentration, distance between the electrodes, current density and temperature are evaluated. The results show that a minimum voltage is required when the distance between the electrodes becomes a minimum at the highest possible temperature, lowest current density and at highest concentrations of brine and electrolyte. Furthermore, they indicate that brine and electrolyte concentrations do not have significant effect on required voltage.
机译：在本研究中，讨论了新设计的光电化学制氢反应器的电化学模型。该反应器将光化学制氢与电化学氯碱工艺整合在一起。为了中和氯碱工艺中的氢氧根离子，理想的最低所需电势为2.18V。但是，溶液，膜和电极存在损耗。应该计算这些损耗，以找到光电化学制氢反应器的确切电压要求。建立电化学模型以计算反应器中的这些损失。评估盐水浓度，电解质浓度，电极之间的距离，电流密度和温度的影响。结果表明，当电极之间的距离在可能的最高温度，最低的电流密度以及最高的盐水和电解质浓度下变为最小时，需要最小的电压。此外，它们表明盐水和电解质浓度对所需电压没有显着影响。

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