首页|硫化氢间接电解法制氢反应规律研究

硫化氢间接电解法制氢反应规律研究

STUDY ON THE REACTION REGULARITY OF HYDROGEN PRODUCTION BY INDIRECT ELECTROLYSIS OF HYDROGEN SULFIDE

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研究了硫化氢制氢电解过程中电解电压、电解液流速、电解液组成对电流密度的影响,并考察了电极材料的稳定性.结果表明:制氢速率随着电解电压的升高而升高,当电解电压为1.1 V时,制氢电耗为2.6 kW·h/m3,电解电流密度可达163 mA/cm2;在电解液中,电流密度随H+浓度增加而呈现先增大后减小的趋势,当H+浓度为8 mol/L时,电流密度最大;电流密度随Fe2+浓度增加而增加,且高电解电压时变化更加明显;此外,电解液流速大于200 Uh时,能有效降低扩散影响;实验还表明,石墨基电极在电解过程中展现出良好的稳定性,为电解系统的长期稳定运行提供了保障.
The effects of electrolytic voltage,electrolyte flow rate and electrolyte composi-tion on the current density during hydrogen sulfide electrolysis were studied,and the stability of electrode materials was investigated.The results show that the hydrogen production rate increa-ses with the increase of electrolytic voltage.When the electrolytic voltage is 1.1 V,the hydrogen production power consumption is 2.6 kW·h/m3,and the current density can reach 163 mA/cm2.In the electrolyte,the current density increases first and then decreases with the increase of H+concentration.When the electrolyte H+concentration is 8 mol/L,the current density rea-ches the maximum.The current density increases with the increase of Fe2+concentration in so-lution,and the change is more obvious when the electrolytic voltage is higher.In addition,the electrolyte flow velocity can effectively reduce the diffusion effect when it's greater than 200 L/h;The experiment also shows that the graphitic electrode exhibits good stability in the electrolyt-ic process,which provides a guarantee for the long-term stable operation of the electrolytic sys-tem.

hydrogen sulfidehydrogen productionindirect electrolysisreaction rules

刘剑利、崔云梓、刘增让、徐翠翠、宋宛霖

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中国石化齐鲁分公司研究院,山东淄博 255400

硫化氢 制氢 间接电解 反应规律

2024

齐鲁石油化工
齐鲁石油化工公司研究院

齐鲁石油化工

影响因子:0.259
ISSN:1009-9859
年,卷(期):2024.52(3)