新型两相吸收剂-离子液体系统高效捕获CO2

doi:10.16085/j.issn.1000-6613.2022-1511

摘要/Abstract

摘要：

以四甲基乙二胺（TMEDA）为分相剂，选用了乙醇胺（MEA）、羟乙基乙二胺（AEEA）、三乙烯四胺（TETA）和二乙烯三胺（DETA）四种常用于捕获CO₂的一级胺与TMEDA以1∶2的质量比复配，其中TMEDA与AEEA组成的吸收剂吸收一定量的CO₂后可以形成液液分相，且吸收CO₂效果最佳，饱和吸收负荷可达1.620molCO₂/kg。采用1,8-二氮杂双环[5.4.0]十一碳-7-烯-咪唑([DBU][Im])离子液体与TMEDA-AEEA液液两相吸收剂混合，研究[DBU][Im]离子液体对两相吸收剂吸收性能和液液分相的影响，通过碳谱核磁共振法对有机胺及CO₂产物的物质分布进行分析。结果表明，向TMEDA-AEEA两相吸收剂中引入[DBU][Im]离子液体有助于提高CO₂吸收负荷，[DBU][Im]离子液体、水和CO₂反应产物主要分布于下液相，上液相存在TMEDA和少量[DBU][Im]离子液体。当TMEDA、AEEA、水、[DBU][Im]离子液体的质量比为10∶4∶5∶1时，该吸收剂富液相吸收负荷相比TMEDA-AEEA两相吸收剂提高了49.6%。

关键词: 二氧化碳, 两相吸收剂, [DBU][Im]离子液体

Abstract:

In this study, tetramethylethylenediamine (TMEDA) was used as phase separating agent, four kinds of amines (ethanolamine, aminoethylethanolamine, triethylenetetramine and diethylenetriamine) that commonly used to capture CO₂ were mixed with TMEDA in a mass ratio of 1∶2. The solvent composed of TMEDA and AEEA could form a liquid-liquid phase separation after absorbing CO₂, and had the best CO₂ absorption characteristics, with absorption loading capacity of 1.620molCO₂/kg. The mixture of 1,8-diazabicyclo [5.4.0] undecano-7-en-imidazole ([DBU][Im]) ionic liquid and TMEDA-AEEA biphasic solvent was used to study the influence of [DBU][Im] on the absorption and phase separation characteristics. The material distribution of organic amine and CO₂ products in two phases were analyzed by ¹³C NMR spectrum. It was indicated the introduction of [DBU][Im] ionic liquids into TMEDA-AEEA biphasic solvent was helpful to increase the CO₂ absorption loading capacity. The [DBU][Im] ionic liquids, water and CO₂ reaction products were mainly distributed in the lower liquid phase, while TMEDA and a small amount of [DBU][Im] ionic liquids existed in the upper liquid phase. When the mass ratio of TMEDA, AEEA, water and [DBU][Im] ionic liquid was 10∶4∶5∶1, the absorption loading of the rich liquid phase of the absorbent was 49.6% higher than that of TMEDA-AEEA biphasic solvent.

Key words: carbon dioxide, biphasic solvent, [DBU][IM] ionic liquid

中图分类号:

TQ028.1

吕超, 张习文, 金理健, 杨林军. 新型两相吸收剂-离子液体系统高效捕获CO₂[J]. 化工进展, 2023, 42(6): 3226-3232.

LYU Chao, ZHANG Xiwen, JIN Lijian, YANG Linjun. Efficient capture of CO₂ by a new biphasic solvent-ionic liquid system[J]. Chemical Industry and Engineering Progress, 2023, 42(6): 3226-3232.

图/表 12

参考文献 21

1	徐志成, 王淑娟, 陈昌和. 液液两相吸收剂吸收CO₂的实验研究[J]. 清华大学学报(自然科学版), 2013, 53(3): 336-341, 352.
	XU Zhicheng, WANG Shujuan, CHEN Changhe. Experimental study of CO₂ absorption by liquid-liquid biphasic solvents[J]. Journal of Tsinghua University (Science and Technology), 2013, 53(3): 336-341, 352.
2	ROCHELLE G T. Amine scrubbing for CO₂ capture[J]. Science, 2009, 325(5948): 1652-1654.
3	CUCCIA L, DUGAY J, BONTEMPS D, et al. Monitoring of the blend monoethanolamine/methyldiethanolamine/water for post-combustion CO₂ capture[J]. International Journal of Greenhouse Gas Control, 2019: 80： 43-53.
4	周小斌. 新型两相胺吸收剂捕集二氧化碳研究[D]. 泉州: 华侨大学, 2019.
	ZHOU Xiaobin. Study on carbon dioxide capture using A novel biphasic solvent[D]. Quanzhou: Huaqiao University, 2019.
5	RAYNAL Ludovic, BRIOT Patrick, DREILLARD Matthieu, et al. Evaluation of the DMX process for industrial pilot demonstration-methodology and results[J]. Energy Procedia, 2014, 63: 6298-6309.
6	PINTO D D D, KNUUTILA H, FYTIANOS G, et al. CO₂ post combustion capture with a phase change solvent. Pilot plant campaign[J]. International Journal of Greenhouse Gas Control, 2014, 31: 153-164.
7	CAMPER D, BARA J E, GIN D L, et al. Room-temperature ionic liquid-amine solutions: Tunable solvents for efficient and reversible capture of CO₂ [J]. Industrial & Engineering Chemistry Research, 2008, 47(21): 8496-8498.
8	LI Fangfang, BAI Yinge, ZENG Shaojuan, et al. Protic ionic liquids with low viscosity for efficient and reversible capture of carbon dioxide[J]. International Journal of Greenhouse Gas Control, 2019, 90: 102801.
9	BLANCHARD L A, HANCU D, BECKMAN E J, et al. Green processing using ionic liquids and CO₂ [J]. Nature, 1999, 399(6731): 28-29.
10	张晓春, 张锁江, 左勇, 等. 离子液体的制备及应用[J]. 化学进展, 2010, 22(7): 1499-1508.
	ZHANG Xiaochun, ZHANG Suojiang, ZUO Yong, et al. Preparation and applications of ionic liquids[J]. Progress in Chemistry, 2010, 22(7): 1499-1508.
11	ZHU Xiao, SONG Mengling, XU Yingjie. DBU-based protic ionic liquids for CO₂ capture[J]. ACS Sustainable Chemistry & Engineering, 2017, 5(9): 8192-8198.
12	徐令君, QI Yang, 王淑娟. [Bmim][BF₄]/MEA混合水溶液吸收CO₂的吸收性能与液液分相机理[J]. 化工学报, 2018, 69(12): 5112-5119.
	XU Lingjun, QI Yang, WANG Shujuan. Absorption performance and stratification mechanism of biphasic CO₂ absorbent[Bmim][BF 4]/MEA aqueous mixtures[J]. CIESC Journal, 2018, 69(12): 5112-5119.
13	YAN Hong, ZHAO Lei, BAI Yinge, et al. Superbase ionic liquid-based deep eutectic solvents for improving CO₂ absorption[J]. ACS Sustainable Chemistry & Engineering, 2020, 8(6): 2523-2530.
14	杨林军, 孙莹, 张琳, 等. 水汽对膜法捕集CO₂的影响[J]. 高校化学工程学报, 2019, 33(4): 972-979.
	YANG Linjun, SUN Ying, ZHANG Lin, et al. Effects of water vapor on membrane CO₂ capture[J]. Journal of Chemical Engineering of Chinese Universities, 2019, 33(4): 972-979.
15	CIFTJA A F, HARTONO A, SVENDSEN H F. Experimental study on phase change solvents in CO₂ capture by NMR spectroscopy[J]. Chemical Engineering Science, 2013, 102: 378-386.
16	PINTO D D D, ZAIDY S A H, HARTONO A, et al. Evaluation of a phase change solvent for CO₂ capture: Absorption and desorption tests[J]. International Journal of Greenhouse Gas Control, 2014, 28: 318-327.
17	刘飞. 胺基两相吸收剂捕集二氧化碳机理研究[D]. 杭州: 浙江大学, 2020.
	LIU Fei. Mechanism of carbon dioxide capture by amine-based two-phase absorbent[D]. Hangzhou: Zhejiang University, 2020.
18	YE Qing, WANG Xinlei, LU Yongqi. Screening and evaluation of novel biphasic solvents for energy-efficient post-combustion CO₂ capture[J]. International Journal of Greenhouse Gas Control, 2015, 39: 205-214.
19	LI L, VOICE A K, LI H, et al. Amine blends using concentrated piperazine[J]. Energy Procedia, 2013, 37: 353-369.
20	GUO Chao, CHEN Shaoyun, ZHANG Yongchun. A ¹³C NMR study of carbon dioxide absorption and desorption in pure and blended 2-(2-aminoethylamine)ethanol (AEEA) and 2-amino-2-methyl-1-propanol (AMP) solutions[J]. International Journal of Greenhouse Gas Control, 2014, 28: 88-95.
21	LIU F, ROCHELLE G T, WANG T, et al. CO₂ absorption rate in biphasic solvent of aminoethylethanolamine and diethylethanolamine[J]. Chemical Engineering Journal, 2021, 404: 126503.

吸收剂胺组成	一级胺结构	是否分相	分相情况
TMEDA+AEEA		是
TMEDA+MEA		是
TMEDA+DETA		否
TMEDA+TETA		否

吸收剂胺组成	一级胺结构	是否分相	分相情况
TMEDA+AEEA		是
TMEDA+MEA		是
TMEDA+DETA		否
TMEDA+TETA		否

项目	TMEDA+AEEA	TMEDA+MEA
分相时间/min	5.5	14.0
分相比(上相体积∶下相体积)	7∶19	7∶34
上相CO₂负荷/mol·kg^-1	0.053	0.089
下相CO₂负荷/mol·kg^-1	0.631	1.090

项目	TMEDA+AEEA	TMEDA+MEA
分相时间/min	5.5	14.0
分相比(上相体积∶下相体积)	7∶19	7∶34
上相CO₂负荷/mol·kg^-1	0.053	0.089
下相CO₂负荷/mol·kg^-1	0.631	1.090

吸收剂胺组成	上相CO₂负荷/mol·kg^-1	下相CO₂负荷/mol·kg^-1
TMEDA+AEEA	0.089	2.046
TMEDA+MEA	0.102	1.613

新型两相吸收剂-离子液体系统高效捕获CO₂

Efficient capture of CO₂ by a new biphasic solvent-ionic liquid system

RichHTML

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

图/表 12

参考文献 21

相关文章 15

编辑推荐

Metrics

本文评价

吸收剂	物质组成	组成物质质量比
a	TMEDA+AEEA+H₂O	10∶5∶5
b	TMEDA+AEEA+H₂O+[DBU][Im]	10∶5∶4∶1
c	TMEDA+AEEA+H₂O+[DBU][Im]	10∶4∶5∶1

项目	a	b	c
上相CO₂负荷/mol·kg^-1	0.089	0.013	0.103
下相CO₂负荷/mol·kg^-1	2.046	2.215	3.061

项目	a	b	c
分相时间/min	5.5	3	5
分相比(上相体积:下相体积)	7∶19	7∶10	7∶26
上相CO₂负荷/mol·kg^-1	0.053	0.053	0.341
下相CO₂负荷/mol·kg^-1	0.631	0.301	0.823
黏度/mPa·s	194.3	183.5	170.7

碳原子编号	化学位移	对应碳原子位置
1	61.73~61.48
2	53.41~52.28
3	52.94~52.81
4	42.61~42.48
5	163.69~163.56
6	163.26~163.15

[1]	杨寒月, 孔令真, 陈家庆, 孙欢, 宋家恺, 王思诚, 孔标. 微气泡型下向流管式气液接触器脱碳性能[J]. 化工进展, 2023, 42(S1): 197-204.
[2]	王胜岩, 邓帅, 赵睿恺. 变电吸附二氧化碳捕集技术研究进展[J]. 化工进展, 2023, 42(S1): 233-245.
[3]	时永兴, 林刚, 孙晓航, 蒋韦庚, 乔大伟, 颜彬航. 二氧化碳加氢制甲醇过程中铜基催化剂活性位点研究进展[J]. 化工进展, 2023, 42(S1): 287-298.
[4]	郑谦, 官修帅, 靳山彪, 张长明, 张小超. 铈锆固溶体Ce_0.25Zr_0.75O₂光热协同催化CO₂与甲醇合成DMC[J]. 化工进展, 2023, 42(S1): 319-327.
[5]	戴欢涛, 曹苓玉, 游新秀, 徐浩亮, 汪涛, 项玮, 张学杨. 木质素浸渍柚子皮生物炭吸附CO₂特性[J]. 化工进展, 2023, 42(S1): 356-363.
[6]	孙玉玉, 蔡鑫磊, 汤吉海, 黄晶晶, 黄益平, 刘杰. 反应精馏合成甲基丙烯酸甲酯工艺优化及节能[J]. 化工进展, 2023, 42(S1): 56-63.
[7]	王耀刚, 韩子姗, 高嘉辰, 王新宇, 李思琪, 杨全红, 翁哲. 铜基催化剂电还原二氧化碳选择性的调控策略[J]. 化工进展, 2023, 42(8): 4043-4057.
[8]	刘毅, 房强, 钟达忠, 赵强, 李晋平. Ag/Cu耦合催化剂的Cu晶面调控用于电催化二氧化碳还原[J]. 化工进展, 2023, 42(8): 4136-4142.
[9]	黄玉飞, 李子怡, 黄杨强, 金波, 罗潇, 梁志武. 光催化CO₂和CH₄重整催化剂研究进展[J]. 化工进展, 2023, 42(8): 4247-4263.
[10]	娄宝辉, 吴贤豪, 张驰, 陈臻, 冯向东. 纳米流体用于二氧化碳吸收分离研究进展[J]. 化工进展, 2023, 42(7): 3802-3815.
[11]	白亚迪, 邓帅, 赵睿恺, 赵力, 杨英霞. 变温吸附碳捕集机组标准化测试方案探讨及性能实验[J]. 化工进展, 2023, 42(7): 3834-3846.
[12]	顾诗亚, 董亚超, 刘琳琳, 张磊, 庄钰, 都健. 考虑中间节点的碳捕集管路系统设计与优化[J]. 化工进展, 2023, 42(6): 2799-2808.
[13]	王科菊, 赵成, 胡晓玫, 云军阁, 魏凝涵, 姜雪迎, 邹昀, 陈志航. 金属氧化物低温催化氧化VOCs的研究进展[J]. 化工进展, 2023, 42(5): 2402-2412.
[14]	马源, 肖晴月, 岳君容, 崔彦斌, 刘姣, 许光文. CeO₂-Al₂O₃复合载体负载Ni基催化剂催化CO _x 共甲烷化性能[J]. 化工进展, 2023, 42(5): 2421-2428.
[15]	何志勇, 郭天佛, 王金利, 吕锋. 二氧化碳/环氧化合物开环共聚催化剂进展[J]. 化工进展, 2023, 42(4): 1847-1859.