LSCF-GDC氧电极固体氧化物电堆高温蒸汽电解制氢性能研究

发布时间：2018-05-09 17:23

  本文选题：固体氧化物电解池 + 电堆　； 参考：《高校化学工程学报》2016年03期

【摘要】：为研究基于LSCF-GDC氧电极的固体氧化物电解池堆的电解性能,自制了30单元(10 cm×10 cm)的平板式电解电堆,通过改变固体氧化物电解池堆的操作温度、水蒸气含量、气体流量等条件,记录不同条件下电解的极化曲线。分析操作条件对高温电解水蒸气极化的影响,并计算电解制氢的系统效率。结果表明较高的温度、水蒸气含量、水蒸气流量,以及氧电极空气的通入有利于降低过电位;在800℃,通入6 L×min~(-1) 90%湿度的氢气,电解电压为1.27 V时,系统效率达到最大值80.8%,此时电堆的产氢速率为4.57 L×min~(-1)。
[Abstract]:In order to study the electrolysis performance of solid oxide electrolytic reactor based on LSCF-GDC oxygen electrode, a 30 unit (10 cm 脳 10 cm) flat type electrolysis reactor was made. The operating temperature, water vapor content and gas flow rate of the reactor were changed. The polarization curves of electrolysis were recorded under different conditions. The effect of operation conditions on the water vapor polarization of high temperature electrolysis is analyzed, and the system efficiency of hydrogen production by electrolysis is calculated. The results show that high temperature, water vapor content, water vapor flow rate and oxygen electrode air flow can decrease the overpotential, and at 800 鈩，

本文编号：1866891