Verification of chlorine production through seawater electrolysis using ion-exchange membrane electrolytic bath

试验次数	影响因素			试验结果
试验次数	T/ ℃	A/（A·m⁻²）	S/s	${E_{\text{C}}}$/V	$ \eta $/%	$\omega $/(kW·h·t⁻¹)
1	30	3 000	38	3.9	75.4	3911.6
2	40	3 000	38	3.8	87.0	3 303.0
3	30	3 500	38	4.0	70.7	4 276.4
4	40	3 500	38	3.9	78.0	3 779.4
5	30	3 000	46	4.1	76.9	4 027.8
6	40	3 000	46	3.8	87.7	3 273.3
7	30	3 500	46	4.2	75.1	4 227.0
8	40	3 500	46	3.9	82.1	3 590.6

Table 2. Experimental results on the 3% brine concentration of seawater

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Table 2. Experimental results on the 3% brine concentration of seawater

试验次数	影响因素			试验结果
试验次数	T/ ℃	A/（A·m⁻²）	S/s	${E_{\text{C}}}$/V	$ \eta $/%	$\omega $/(kW·h·t⁻¹)
1	30	3 000	38	3.6	81.1	3 263.2
2	40	3 000	38	3.5	89.4	2 957.2
3	30	3 500	38	3.7	76.6	3 650.7
4	40	3 500	38	3.7	83.9	3 333.3
5	30	3 000	46	3.5	81.7	3 329.2
6	40	3 000	46	3.5	90.9	2 911.6
7	30	3 500	46	3.7	80.7	3 465.1
8	40	3 500	46	3.6	84.8	3 208.8

Table 3. Test results of ion content before and after seawater pretreatment
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Table 3. Test results of ion content before and after seawater pretreatment
离子质量分数/10⁻⁶
Ca²⁺ Mg²⁺ Cl⁻ SO₄²⁻ NO₃⁻
预处理前 256.4 808.4 15 974.25 3 818.49 387.52
预处理后 23.99 57.16 15 911.53 218.10 294.44

Table 4. Comparion of seawater quality requirements for ion-exchange membrane electrolytic bath
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Table 4. Comparion of seawater quality requirements for ion-exchange membrane electrolytic bath
指标预处理后海水进水水质要求
Ca²⁺，Mg²⁺总质量分数/10⁻⁶ 81.15 ≤100
NaCl质量分数/% 2.63 2~5
浊度/(NTU) 0.08 ≤0.1

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Yadong DENG, Wei WEI, Xingyue YONG, Huan ZHOU, Cong ZHANG, Chongjie LI, Yanan SHI. Verification of chlorine production through seawater electrolysis using ion-exchange membrane electrolytic bath[J]. Chinese Journal of Ship Research, 2021, 16(6): 216

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