Removal of heat stable salt from MDEA wastewater by three-compartment electrodialysis

doi:10.11894/iwt.2019-0482

Industrial Water Treatment ›› 2020, Vol. 40 ›› Issue (5): 60-64. doi: 10.11894/iwt.2019-0482

• Research and Experiment • Previous Articles Next Articles

Removal of heat stable salt from MDEA wastewater by three-compartment electrodialysis

Cuilian Fu¹(),Fuqiang Chen²,Mengyi Zhang²,Xing Li³,Yachao Hao⁴,Yongzhi Chi²

1. Engineering Practical Teaching Center, Tianjin Chengjian University, Tianjin 300384
2. Tianjin Key Laboratory of Water Quality Science and Technology, School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin 300384, China
3. Chongqing Wanzhou Sewage Treatment Co., Ltd., Chongqing 400100, China
4. CNOOC Tianjin Chemical Research and Design Institute Co., Ltd., Tianjin 300131, China

Received:2020-03-19 Online:2020-05-20 Published:2020-05-22

三室电渗析脱除MDEA废液中热稳定盐的试验研究

付翠莲¹(),陈富强²,张梦怡²,黎星³,郝亚超⁴,池勇志²

1. 天津城建大学工程实训中心, 天津 300384
2. 天津城建大学环境与市政工程学院天津市水质科学与技术重点实验室, 天津 300384
3. 重庆市万州区镇级污水处理有限公司, 重庆 400100
4. 中海油天津化工研究设计院有限公司, 天津 300131

作者简介:付翠莲(1968-),高级工程师。电话:13502137529, E-mail:fx0905@126.com
基金资助:
天津滨海工业带废水污染控制与生态修复综合示范项目(2017ZX07107);天津市企业科技特派员项目(19JCTPJC47000)

Abstract

Abstract:

In the desulfurization system of natural gas or coal syngas industry, N-methyldiethanolamine(MDEA) solution reacts with acidic gas to produce a heat stable salt(HSS) in the process of adsorbing acidic gas. Based on the two-compartment electrodialysis unit, a three-compartment electrodialysis unit was constructed by adding a NaOH compartment. The removal efficiency of HSS and the loss of MDEA from MDEA wastewater were investigated by using the three-compartment electrodialysis. The results show that when the NaOH mass fraction is 3%, the removal efficiency of HSS in three-compartment electrodialysis is 82.66%, which is 27.08% higher than that in two-compartment electrodialysis, the MDEA loss decreases to 5.78%, which is 15.30% lower than that in two-compartment electrodialysis. The removal efficiency of HSS increases with the increase of NaOH solution concentration, while the MDEA loss decreases with the increase of NaOH concentration.

Key words: three-compartment electrodialysis, MDEA, heat stable salt, desulfurization

摘要：

在天然气或煤合成气行业中的脱硫系统中，N-甲基二乙醇胺（MDEA）溶液在吸附酸性气体过程中，与酸性气体反应会生成热稳定盐（HSS）。在双室电渗析装置基础上，增加NaOH室，构建三室电渗析装置。考察其对MDEA废液中HSS的脱除效果及MDEA损耗的情况。结果表明：NaOH质量分数为3%时，三室电渗析的HSS脱除率为82.66%，比双室电渗析提高了27.08%；MDEA损耗率降低到5.78%，比双室电渗析降低了15.30%；HSS脱除率随NaOH质量分数的上升而增加，MDEA损耗率随NaOH质量分数的上升而下降。

关键词: 三室电渗析, N-甲基二乙醇胺, 热稳定盐, 脱硫

CLC Number:

X703.1

Cuilian Fu,Fuqiang Chen,Mengyi Zhang,Xing Li,Yachao Hao,Yongzhi Chi. Removal of heat stable salt from MDEA wastewater by three-compartment electrodialysis[J]. Industrial Water Treatment, 2020, 40(5): 60-64.

付翠莲,陈富强,张梦怡,黎星,郝亚超,池勇志. 三室电渗析脱除MDEA废液中热稳定盐的试验研究[J]. 工业水处理, 2020, 40(5): 60-64.

/ / Recommend / Download Citations

URL: https://www.iwt.cn/EN/10.11894/iwt.2019-0482

https://www.iwt.cn/EN/Y2020/V40/I5/60

Figures/Tables 8

References 14

1	何玲. 高含硫天然气脱硫脱碳技术研究进展[J]. 化学工程师, 2018, 32 (4): 62- 66. URL
2	段永锋, 张杰, 宗瑞磊, 等. 天然气净化过程中热稳定盐的成因及腐蚀行为研究进展[J]. 石油化工腐蚀与防护, 2018, 35 (1): 1- 7. doi: 10.3969/j.issn.1007-015X.2018.01.001
3	Wang Yaoming , Li Wei , Yan Haiyang , et al. Removal of heat stable salts(HSS) from spent alkanolamine wastewater using electrodialysis[J]. Journal of Industrial and Engineering Chemistry, 2018, 57, 356- 362. doi: 10.1016/j.jiec.2017.08.043
4	贾正万, 占国仁, 陈进旺, 等. 利用电渗析法脱除胺液中热稳定盐的应用[J]. 石油与天然气化工, 2018, 47 (6): 22- 26. doi: 10.3969/j.issn.1007-3426.2018.06.005
5	Ling H , Liu S , Gao H X , et al. Effect of heat-stable salts on absorption/desorption performance of aqueous monoethanolamine(MEA) solution during carbon dioxide capture process[J]. Separation and Purification Technology, 2019, 212, 822- 833. doi: 10.1016/j.seppur.2018.12.001
6	Hong Meng , Shuang Zhang , Li Chunxi , et al. Removal of heat stable salts from aqueous solutions of N-methyldiethanolamine using a specially designed three-compartment configuration electrodialyzer[J]. Journal of Membrane Science, 2008, 322 (2): 436- 440. doi: 10.1016/j.memsci.2008.05.072
7	Pal P , Banat F . Comparison of heavy metal ions removal from industrial lean amine solvent using ion exchange resins and sand coated with chitosan[J]. Journal of Natural Gas Science & Engineering, 2014, 18, 227- 236. URL
8	Bazhenov S , Vasilevsky V , Rieder A , et al. Heat stable salts(HSS) removal by electrodialysis:reclaiming of MEA used in post-combustion CO₂-capture[J]. Energy Procedia, 2014, 63, 6349- 6356. doi: 10.1016/j.egypro.2014.11.668
9	Pal P , Banat F , Alshoaibi A . Adsorptive removal of heat stable salt anions from industrial lean amine solvent using anion exchange resins from gas sweetening unit[J]. Journal of Natural Gas Science & Engineering, 2013, 15, 14- 21. URL
10	李超, 王拥军, 陆侨治, 等. 电渗析脱除热稳定盐技术在天然气净化厂的应用[J]. 石油与天然气化工, 2017, 46 (5): 16- 19. doi: 10.3969/j.issn.1007-3426.2017.05.003
11	Grushevenko E A , Bazhenov S D , Vasilevskii V P , et al. Two-step electrodialysis treatment of monoethanolamine to remove heat stable salts[J]. Russian Journal of Applied Chemistry, 2018, 91 (4): 602- 610. doi: 10.1134/S1070427218040110
12	Eisaman M D , Alvarado L , Larner D , et al. CO₂ desorption using high-pressure bipolar membrane electrodialysis[J]. Energy & Environmental Science, 2011, 4 (10): 4031- 4037. URL
13	曾运星. 脱硫胺液中热稳态盐含量的测定[J]. 广东化工, 2012, 39 (2): 174. doi: 10.3969/j.issn.1007-1865.2012.02.093
14	文端智. 电渗析淡水的pH及电渗析器的效率与直流电源的关系[J]. 海水淡化, 1978, (1): 30- 33. URL

阳离子	Na⁺	NH4⁺	K⁺	Mg²⁺	Ca²⁺	Cl^-	HCOO^-	SO₄^2-	SO₃^2-	CH₃COO^-
质量浓度/mg·L-1	2 095.32	1 504.01	15 468.56	220.23	586.38	859.68	17 031.68	3 042.90	9 046.84	1 700.76

阳离子	Na⁺	NH4⁺	K⁺	Mg²⁺	Ca²⁺	Cl^-	HCOO^-	SO₄^2-	SO₃^2-	CH₃COO^-
质量浓度/mg·L-1	2 095.32	1 504.01	15 468.56	220.23	586.38	859.68	17 031.68	3 042.90	9 046.84	1 700.76

电渗析装置	NaOH质量分数/%	MDEA损耗率/%
三室电渗析	0.5	15.23
三室电渗析	1	8.23
三室电渗析	3	5.78
三室电渗析	5	3.67
双室电渗析	—	21.08

电渗析装置	NaOH质量分数/%	MDEA损耗率/%
三室电渗析	0.5	15.23
三室电渗析	1	8.23
三室电渗析	3	5.78
三室电渗析	5	3.67
双室电渗析	—	21.08

[1]	Xiaofei TU, Shengli DING, Maxiaoxuan SUN, Wei LI. Simultaneous removal of Ca²⁺ and SO₄ ^2- from desulfurization wastewater by sodium aluminate coagulation [J]. Industrial Water Treatment, 2025, 45(3): 84-89.
[2]	Xiangnan LI, Chao LIANG, Ze LI, Yinghu MIAO, Kuijiang XU, Huimin KANG, Xue CHEN. Treatment of desulfurization wastewater from power plant by vacuum membrane distillation [J]. Industrial Water Treatment, 2025, 45(2): 159-165.
[3]	Guidong LIU, Yangyang HU, Jing WANG, Yang CHEN, Zhiyong WANG, Yulu DANG, Hao XU. Commissioning and analysis of new desulfurization wastewater treatment system in a coal-fired power plant [J]. Industrial Water Treatment, 2025, 45(1): 179-185.
[4]	Tianran ZHOU, Junzhen DI. Growth factor analysis and desulfurization performance of sulfate-reducing bacteria [J]. Industrial Water Treatment, 2024, 44(3): 120-126.
[5]	Bang LI, Tengfei TIAN, Junfeng WU, Xinfeng ZHU, Changrui HAN, Luxue CUI, Xia ZHANG, Yanbin YUN. Component，distribution and formation mechanism of foulant in the process of desulfurization wastewater treatment by membrane distillation [J]. Industrial Water Treatment, 2024, 44(2): 139-146.
[6]	Fuqin LI, Shiyi WANG, Zhen LIANG, Jin WANG. Diffusion dialysis-nanofiltration separation process to reclam the acidic desulfurization wastewater from steel enterprises [J]. Industrial Water Treatment, 2024, 44(11): 74-81.
[7]	Honglong GAO, Wensheng YANG, Lei GAO, Huijun LIU, Xin WANG, Xuewang MEN. Evaporation characteristics of desulfurization wastewater in low-temperature three effect evaporation process [J]. Industrial Water Treatment, 2024, 44(1): 132-137.
[8]	Xin TONG, Wenjie LIU, Yifei LONG, Jiangjun HU. Treatment of desulfurization wastewater by electrocoagulation and its application in the pretreatment of reverse osmosis [J]. Industrial Water Treatment, 2024, 44(1): 169-176.
[9]	Yupeng WU, Hui FANG, Xiaoran LIU, Yulei ZHANG. Experimental study on COD treatment of desulphurization wastewater by electrocatalytic oxidation [J]. Industrial Water Treatment, 2023, 43(5): 122-128.
[10]	Liangzhou YOU, Qianqian HAN, Shengming YUAN, Zhen DU. Study and influence analysis of high temperature flue gas direct injection evaporation atomization of desulfurization wastewater concentrate [J]. Industrial Water Treatment, 2023, 43(5): 181-187.
[11]	Yapeng LIU, Zhuojun HUANG, Shengli YU, Weijun SHANG, Xueni QIANG, Ping GUO, Jiaming GUO, Xiaodan ZHAO, Zhen ZHOU. Study on removal of heavy metals from wastewater by layered double hydroxides [J]. Industrial Water Treatment, 2023, 43(3): 96-104.
[12]	Dalong HU, Yaohong YU, Shengli YU, Weijun SHANG, Yajuan LI, Wendong LI. Present situation and development of treatment technology for desulfurization wastewater in coal-fired power station [J]. Industrial Water Treatment, 2023, 43(2): 43-52.
[13]	Min XU,Hongyu DU,Weixiao DOU,Fei LI,Wei LU,Chao SUN,Yu CHEN,Zhen ZHOU. Settleability of ettringite precipitate for sulfate removal from flue gas desulfurization wastewater [J]. Industrial Water Treatment, 2022, 42(3): 123-130.
[14]	Yajuan LI, Yong LIU, Guidong LIU, Yaohong YU, Yang YANG, Yong YANG. Analysis of zero discharge system performance for desulfurization wastewater in a power plant [J]. Industrial Water Treatment, 2022, 42(1): 175-178.
[15]	Zhenbin Hu,Weixue Tang,Zhanchang Pan,Jian Wu,Rufeng Mai. Roasting desulfurization process of sludge from aluminum profile processing [J]. Industrial Water Treatment, 2021, 41(8): 97-100.

Please choose a citation manager

Content to export