基于电渗析技术的CO2吸收剂再生过程研究

doi:10.12096/j.2096-4528.pgt.22019

摘要/Abstract

摘要：

针对电渗析法去除热稳定性盐(heat stable salt，HSS)过程的胺损失问题，通过对比二室电渗析、三室电渗析和双极膜电渗析这3种膜堆构型的电渗析设备，在固定实验条件下研究失活胺液再生过程，考察了HSS去除率、再生胺能力、能耗、电流效率等重要性能指标。结果表明，不同的膜堆构型在运行过程有较大差异，且三隔室电渗析性能最优。在保证其他性能的前提下，胺损失率降低为常规电渗析的42.7%。研究结果不仅可以加深对电渗析技术再生有机胺的理解，还可以为吸收剂再生处理技术的使用和推广提供理论支持。

关键词: CO₂捕集, 热稳定性盐(HSS), 电渗析, 吸收剂, 再生, 有机胺

Abstract:

Aiming at the problem of amine loss in the process of removing heat stable salt (HSS) by electrodialysis (ED), by comparing the three typical membrane stack configurations of ED equipment, such as two-chamber ED, three-chamber ED and bipolar membrane ED, this paper studied the regeneration process of reclaimed amine solution under the fixed experimental condition. The removal rate of HSS, the ability of amine regeneration, energy consumption, current efficiency and other important performance indicators were investigated. The results show that different membrane stack configurations have great differences in the operation process, and the performance of three-compartment ED is the best. The amine loss rate is reduced to 42.7% of that of conventional electrodialysis under the premise of ensuring other performance. The results of the study can not only deepen the understanding of ED technology for the reclamation of organic amine, but also lay a theoretical foundation for the use and promotion of absorbent reclamation technology.

Key words: CO₂ capture, heat stable salt (HSS), electrodialysis, absorbent, reclamation, organic amine

中图分类号:

TK 01

李小端, 赵兴雷, 叶舣, 王保登, 熊日华. 基于电渗析技术的CO₂吸收剂再生过程研究[J]. 发电技术, 2022, 43(4): 593-599.

Xiaoduan LI, Xinglei ZHAO, Yi YE, Baodeng WANG, Rihua XIONG. Study on Reclamation Process of CO₂ Absorbent Based on Electrodialysis Technology[J]. Power Generation Technology, 2022, 43(4): 593-599.

图/表 9

表1 含HSS的吸收剂水质成分

Tab. 1 Absorbent water quality with HSS

项目	质量浓度/(mg∙L^-1)
MEA	305 000
甲酸	8 000
乙酸	4 000
草酸	1 500
硝酸	5 000
硫酸	4 800
盐酸	4 300

图1 3种膜堆构型脱除HSS原理图

Fig. 1 Schematic diagram of HSS removal with three membrane stack configurations

图2 HSS阴离子去除率随时间变化曲线

Fig. 2 Curve of HSS anion removal with time

图3 电压随时间变化曲线

Fig. 3 Curve of voltage with time

图4 MEA损失率比较

Fig. 4 MEA loss rate comparison

图5 电渗析脱除HSS过程MEA含量趋势

Fig. 5 MEA content trend during the removal of HSS by electrodialysis

图6 吸收剂pH值随时间变化曲线

Fig. 6 pH curve of absorbent with time

图7 MEA再生能力比较

Fig. 7 MEA reclamation capacity comparison

图8 电耗及电流效率比较

Fig. 8 Comparison of power consumption and current efficiency

参考文献 28

1	韩学义．电力行业二氧化碳捕集、利用与封存现状与展望[J]．中国资源综合利用，2020，38(2)：8． doi:10.3969/j.issn.1008-9500.2020.02.031
	HAN X Y ．Current situation and prospect of carbon dioxide capture， utilization and storage in electric power industry[J]．China Resources Comprehensive Utilization，2020，38(2)：8． doi:10.3969/j.issn.1008-9500.2020.02.031
2	赵春生，杨君君，王婧，等．燃煤发电行业低碳发展路径研究[J]．发电技术，2021，42(5)：547-553． doi:10.12096/j.2096-4528.pgt.21054
	ZHAO C S， YANG J J， WANG J，et al ．Research on low-carbon development path of coal-fired power industry[J]．Power Generation Technology，2021，42(5)：547-553． doi:10.12096/j.2096-4528.pgt.21054
3	吴何来，李汪繁，丁先．“双碳”目标下我国碳捕集、利用与封存政策分析及建议[J]．电力建设，2022，43(4)：28-37． doi:10.12204/j.issn.1000-7229.2022.04.004
	WU H L， LI W F， DING X，et al ．Policy analysis and suggestion for carbon capture，utilization and storage under double carbon target in China[J]．Electric Power Construction，2022，43(4)：28-37． doi:10.12204/j.issn.1000-7229.2022.04.004
4	严中华，王建功，朱英刚，等．考虑碳排放流理论的风-碳捕集-电转气联合新型中长期调度方式[J]．智慧电力，2022，50(6)：14-21． doi:10.3969/j.issn.1673-7598.2022.06.004
	YANZ H， WANG J G， ZHU Y G，et al ．New medium-long term dispatching mode of wind-carbon capture-P2G combined system considering carbon emission flow theory[J]．Smart Power，2021，42(5)：547-553． doi:10.3969/j.issn.1673-7598.2022.06.004
5	蔡博峰，李琦，张贤，等．中国二氧化碳捕集利用与封存(CCUS)年度报告(2021)：中国CCUS路径研究[R]．北京：生态环境部环境规划院，2021．
	CAN B F， LI Q， ZHANG X，et al ．Annual report on carbon dioxide capture， utilization and storage in China 2021：Research on CCUS path in China[R]．Beijing：Institute of Rock and Soil Mechanics，Chinese Academy of Environmental Planning，2021．
6	DUMEE L， SCHOLES C， STEVENS G，et al. Purification of aqueous amine solvents used in post combustion CO2 capture：a review[J]．International Journal of Greenhouse Gas Control，2012，10：443-455． doi:10.1016/j.ijggc.2012.07.005
7	RUBIN E S， MANTRIPRAGADA H， MARKS A，et al ．The outlook for improved carbon capture technology[J]．Progress in Energy and Combustion Science，2012，38(5)：630-671． doi:10.1016/j.pecs.2012.03.003
8	HU G， SMITH K H， YUE W，et al ．Carbon dioxide capture by solvent absorption using amino acids：a review[J]．Chinese Journal of Chemical Enginee，2018， 26(11)：9． doi:10.1016/j.cjche.2018.08.003
9	LUCQUIAUD M， GIBBINS J ．On the integration of CO₂ capture with coal-fired power plants： a methodology to assess and optimise solvent-based post-combustion capture systems[J]．Chemical Engineering Research & Design，2011，89(5)：1553-1571． doi:10.1016/j.cherd.2011.03.003
10	REYNOLDS A J， VERHEYEN T V， ADELOJU S B，et al ．Monoethanolamine degradation during pilot-scale post-combustion capture of CO₂ from a brown coal-fired power station[J]．Energy & Fuels，2015，29(11)：7441-7455． doi:10.1021/acs.energyfuels.5b00713
11	LING H， LIU S， GAO H X，et al ．Effect of heat-stable salts on absorption/desorption performance of aqueous monoethanol-amine (MEA) solution during carbon dioxide capture process[J]．Separation and Purification Technology，2019，212：822-833． doi:10.1016/j.seppur.2018.12.001
12	GAO J， WANG S， SUN C，et al ．Corrosion behavior of carbon steel at typical positions of an amine-based CO₂ capture pilot plant[J]．Industrial & Engineering Chemistry Research，2012， 51(19)：6714-6721． doi:10.1021/ie203045v
13	MATHIEU P ．Mitigation of CO₂ emissions using low and near zero CO₂ emission power plants[J]．International Journal of Energy for a Clean Environment，2003，4(1)：21-36． doi:10.1615/interjenercleanenv.v4.i1.20
14	LUDOVIC D， COLIN S， GEOFF S，et al ．Purification of aqueous amine solvents used in post combustion CO₂ capture： a review[J]．International Journal of Greenhouse Gas Control，2012，10(1)：443-455． doi:10.1016/j.ijggc.2012.07.005
15	YUAN F F， WANG Q， YANG P B，et al ．Influence of different resins on the amino acid recovery by resin-filling electrodialysis[J]．Separation and Purification Technology，2015，153：51-59． doi:10.1016/j.seppur.2015.08.036
16	王俊，张运，陆克平．电渗析法连续脱除醇胺溶液中的热稳态盐[J]．石油化工，2009，38(10)：1076-1080． doi:10.3321/j.issn:1000-8144.2009.10.009
	WANG J， ZHANG Y， LU K P ．Continuous removal of heat stable salts in methyldiethanolamine solution by homogenous membrane electrodialysis[J]．Petrochemical Technology，2009，38(10)：1076-1080． doi:10.3321/j.issn:1000-8144.2009.10.009
17	黄川徽．双极膜电渗析再生有机胺脱硫剂[D]．合肥：中国科学技术大学，2008．
	HUANG C H ．Regeneration of amine desulfurizing agents by using electrodialysis with bipolar membranes[D]．Hefei：University of Science and Technology of China，2008．
18	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
19	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
20	HUANG C H， XU T W， JACOBS M L ．Regenerating flue-gas desulfurizing agents by bipolar membrane electrodialysis[J]．Aiche Journal，2006，52(1)：393-401． doi:10.1002/aic.10569
21	HUANG C， XU T ．Comparative study on the regeneration of flue-gas desulfurizing agents by using conventional electro-dialysis (ED) and bipolar membrane electrodialysis (BMED)[J]．Environmental Science & Technology，2006，40(17)： 5527-5531． doi:10.1021/es060525c
22	HONG M， SHUANG Z， LI C，et al ．Removal of heat stable salts from aqueous solutions of N-methyldiethanolamine using a specially designed three-compartment configuration electro-dialyzer[J]．Journal of Membrane Science，2008，322(2)：436-440． doi:10.1016/j.memsci.2008.05.072
23	WANG Y， LI W， YAN H，et al ．Removal of heat stable salts (HSS) from spent alkanolamine wastewater using electrodialysis[J]．Journal of Industrial and Engineering Chemistry，2017，57：356-362． doi:10.1016/j.jiec.2017.08.043
24	张锋镝．电渗析脱盐过程中胺液损失的因素分析及改进措施[J]．气体净化，2019，19(12)：40-44．
	ZHANG D F ．Factors analysis and improvement measures of amine solution fluid loss during electrodialysis desalination[J]．Energy Chemical Industry，2019，19(12)：40-44．
25	HONG M， SHUANG Z， LI C，et al ．Removal of heat stable salts from aqueous solutions of N-methyldiethanolamine using a specially designed three-compartment configuration electrodialyzer-science direct[J]．Journal of Membrane Science，2008，322(2)：436-440． doi:10.1016/j.memsci.2008.05.072
26	BURNS D， GREGORY R A ．The UCARSEP process for on-line removal of non-regenerable salts from amine units[EB/OL]．[2022-01-23](1995-10-13)．．
27	沈怡君，汤志刚，陈健，等．双极膜电渗析法脱除脱碳有机胺中热稳定性盐[J]．膜科学与技术，2020，40(3)：109-116．
	SHEN Y J， TANG Z G， CHEN J，et al ．Research on low-carbon development path of coal-fired power industry[J]．Membrane Science and Technology，2020，40(3)：109-116．
28	HUANG C， XU T ．Comparative study on the regeneration of flue-gas desulfurizing agents by using conventional electrodialysis (ED) and bipolar membrane electrodialysis (BMED)[J]．Environmental Science & Technology，2006， 40(17)：5527-5531． doi:10.1021/es060525c

[1]	孙宇航, 李超, 王争荣, 孙路长, 王凯亮, 胡昔鸣, 方梦祥, 张锋. 甲基二乙醇胺-二元胺混合体系烟气CO₂吸收再生性能研究[J]. 发电技术, 2024, 45(3): 468-477.
[2]	汪丽, 张欢, 叶舣, 赵兴雷. N-氨乙基哌嗪与甘氨酸钠CO₂吸收剂配方研究[J]. 发电技术, 2023, 44(5): 674-684.
[3]	翟融融, 魏清, 冯凌杰, 孙舸洵. 耦合膜冷凝器的碳捕集系统能耗特性分析[J]. 发电技术, 2023, 44(5): 667-673.
[4]	张宁, 朱昊, 杨凌霄, 胡存刚. 考虑可再生能源消纳的多能互补虚拟电厂优化调度策略[J]. 发电技术, 2023, 44(5): 625-633.
[5]	彭道刚, 税纪钧, 王丹豪, 赵慧荣. “双碳”背景下虚拟电厂研究综述[J]. 发电技术, 2023, 44(5): 602-615.
[6]	许洪华, 邵桂萍, 鄂春良, 郭金东. 我国未来能源系统及能源转型现实路径研究[J]. 发电技术, 2023, 44(4): 484-491.
[7]	兰宇, 龙妍, 张哲豪, 阮金港. 可再生能源制氢跨省供应的技术经济可行性研究[J]. 发电技术, 2023, 44(4): 473-483.
[8]	魏少鑫, 金鹰, 王瑾, 杨周飞, 崔超婕, 骞伟中. 电池型电容器技术发展趋势展望[J]. 发电技术, 2022, 43(5): 748-759.
[9]	张欢, 汪丽, 叶舣, 赵兴雷. 乙二烯三胺与三乙醇胺混合胺溶液CO₂吸收剂研究[J]. 发电技术, 2022, 43(4): 609-617.
[10]	苗桢武, 沈来宏, 赵海波. 复合赤铁矿和铜矿石载氧体在化学链燃烧中的循环反应性能研究[J]. 发电技术, 2022, 43(4): 574-583.
[11]	徐彬, 薛帅, 高厚磊, 彭放. 海上风电场及其关键技术发展现状与趋势[J]. 发电技术, 2022, 43(2): 227-235.
[12]	李雪临, 袁凌. 海上风电制氢技术发展现状与建议[J]. 发电技术, 2022, 43(2): 198-206.
[13]	王丹丹, 李亚楼, 李芳, 孙璐. 碳中和背景下高温固体氧化物电解制氢的过程建模与热力学分析[J]. 发电技术, 2021, 42(5): 554-560.
[14]	宣文博, 李慧, 刘忠义, 孙业广, 侯恺. 一种基于虚拟电厂技术的城市可再生能源消纳能力提升方法[J]. 发电技术, 2021, 42(3): 289-297.
[15]	雷超, 李韬. 碳中和背景下氢能利用关键技术及发展现状[J]. 发电技术, 2021, 42(2): 207-217.

基于电渗析技术的CO₂吸收剂再生过程研究

Study on Reclamation Process of CO₂ Absorbent Based on Electrodialysis Technology

RichHTML

PDF (PC)

可视化

摘要/Abstract

引用本文

图/表 9

参考文献 28

相关文章 15

编辑推荐

Metrics