王荻1,
吴心伟1,
金光1,
田宝云2
1.内蒙古科技大学能源与环境学院，包头 014010
2.包头钢铁职业技术学院，包头 014010
基金项目: 国家自然科学基金资助项目（51106068,51566014）
内蒙古留学人员科技活动项目择优入选项目
内蒙古自治区创新引导基金资助项目（2017CXYD-1）
Effect of temperature on CO2 capture with the ionic liquid support membrane
HE Lijuan1,,WANG Di1,
WU Xinwei1,
JIN Guang1,
TIAN Baoyun2
1.Institute of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou 014010, China
2.Baotou Iron and Steel Vocational Technical College, Baotou 014010, China
-->
摘要
HTML全文
图
参考文献
相关文章
施引文献
资源附件
访问统计
摘要:传统CO2的捕集方法存在设备投资大、环境污染严重、再生能耗高等缺点，利用新型绿色工质离子液体负载于聚偏氟乙烯上制备离子液体支撑膜可以较好地解决该问题。在压力为0.2 MPa、流量为50 mL·min-1、温度在298~318 K范围内变化时，测定了CO2在1-乙基-3甲基咪唑双三氟磺酰亚胺盐（[Emim][Tf2N]）和1-乙基-3-甲基咪唑醋酸盐（[Emim][AC]）2种离子液体支撑膜中的渗透系数、溶解度和扩散系数，采用Van’t Hoff方程对溶解度数据进行关联、Arrhenius方程对渗透和扩散系数的数据进行关联。实验结果表明，CO2在2种离子液体支撑膜中的渗透和扩散系数随着温度的升高而增大，溶解度随着温度的升高而降低。[Emim][Tf2N]离子液体支撑膜对CO2的捕集性能优于[Emim][AC]支撑膜，CO2在[Emim][Tf2N]支撑膜中的溶解度最大值为0.447，在[Emim][AC]离子液体支撑膜中的最大溶解度为0.253，由此可确定离子液体支撑膜分离CO2的最佳工作温度，为其在工业应用中奠定良好的基础。
关键词: 离子液体/
支撑膜/
CO2捕集技术
Abstract:Traditional CO2 capture methods have disadvantages, such as large investment in equipment, serious environmental pollution, and high regeneration energy consumption etc.. The preparation of ionic liquid supporting film by a new type of green working ionic liquid loaded on PVDF can solve this problem . The permeability coefficient, solubility and diffusion coefficient of CO2 in two kinds of ionic liquid supporting membranes of 1-ethyl-3 methimidazole bisthree fluorosulfonimide salt [Emim][Tf2N] and 1-ethyl-3-methyl imidazole acetate [Emim][AC] were measured at the pressure of 0.2 MPa, the flow rate of 50 mL·min-1, and the temperature range of 298~318 K. The Van’t Hoff equation was used to correlate the solubility data, and the Arrhenius equation was used to correlate the permeability coefficient and diffusion coefficient data. The experimental results showed that with the increase of temperature, the permeability and diffusion coefficient increased, while the solubility decreased. The CO2 capture performance of [Emim][Tf2N] ionic liquid supporting membrane was better than [Emim][AC] supporting membrane, and the maximum CO2 solubility in [Emim][Tf2N] and [Emim][AC] supporting membranes was 0.447 and 0.253, respectively. Then the optimum working temperature for CO2 separation by ionic liquid supporting membrane can be determined accordingly, which lays a good foundation for its industrial application.
Key words:ionic liquid/
supporting membrane/
CO2 capture technology.
| [1] | 王少剑，刘艳艳，方创林，等. 能源消费CO2排放研究综述[J]. 地理科学进展,2015,34（2）：151-164 |
| [2] | KENARSARI S D,YANG D, JIANG G,et al.Review of recet advances in carbon dioxide separation and capture[J].RSC Advances,2013,45(3):22739-22773 10.1039/c3ra43965h |
| [3] | BRUNETTI A,SCURA F, BARBIERI G,et al.Membrane technologies for CO2 separation[J].Journal of Membrane Science,2010,359:115-125 |
| [4] | ZHANG X,DONG H, DONG H，et al.Carbon capture with ionic liquids: Overview and progress[J].Energy Environmental Science,2012,5(5):6668-6681 10.1039/C2ee21152a |
| [5] | RAMDIN M, LOOS T W D, VLUGT T J H,et al.State-of-the-art of CO2 capture with ionic liquids[J].Industrial Engineering Chemistry Research,2012,51:8149-8177 10.1021/ie3003705 |
| [6] | 白璐，张香平，邓靓，等. 离子液体膜材料分离二氧化碳的研究进展[J]. 化工学报，2016,67（1）：248-257 |
| [7] | 于洋.CO2在功能型离子液体支撑膜中的溶解扩散机理研究[D]. 北京：北京交通大学,2016 |
| [8] | SCOVAZZO P.Determination of the upper limits, benchmarks, and critical properties for gas separations using stabilized room temperature ionic liquid membranes for the purpose of guiding future research[J].Journal of Membrane Science,2009,343:119-211 10.1016/j.memsci.2009.07.028 |
| [9] | SCOVAZZO P, KIEFT J, FINAN D A,et al.Gas separations using non-hexafluorophosphate [PF6-] anion supported ionic liquid membranes[J].Journal of Membrane Science,2004,238:57-63 10.1016/j.memsci.2004.02.033 |
| [10] | SCOVAZZO P, HAVARD D, MCSHEA M,et al.Long-term, continuous mixed-gas dry fed CO2/CH4 and CO2/N2 separation performance and selectivities for room temperature ionic liquid membranes[J].Journal of Membrane Science,2009,327:41-48 10.1016/j.memsci.2008.10.056 |
| [11] | BARA J E, GABRIEL C J, CARLISLE T K,et al.Gas separations in fluoroalkyl-functionalized room-temperature ionic liquids using supported liquid membranes[J].Chemical Engineering Journal,2009,147:43-50 10.1016/j.cej.2008.11.021 |
| [12] | MYERS C, PENNLINE H, LUEBKE D,et al.High temperature separation of carbon dioxide/hydrogen mixtures using facilitated supported ionic liquid membranes[J].Journal of Membrane Science,2008,322:28-31 10.1016/j.memsci.2008.04.062 |
| [13] | SANTOS E, ALBO J, IRABIEN A，et al.Acetate based supported ionic liquid membranes for CO2 separationg: Influnence of the temperature[J].Journal of Membrane Science,2014,452:277-283 10.1016/j.memsci.2013.10.024 |
| [14] | 于红.可支撑离子液体膜吸收CO2的溶解扩散性研究[D]. 北京：北京交通大学，2015 |
| [15] | BLATH J, CHRIST M,DEUBLER N，et al.Gas solubilities in room temperature ionic liquids-correlation between RTIL-molar mass and Henrys law constant[J].Chemical Engineering Journal,2011,172:167-176 10.1016/j.cej.2011.05.084 |
| [16] | 蒋军成，张文婷，鲍静，等. 离子液体对二氧化碳吸收性能的研究进展[J]. 安全与环境学报，2015,15（2）：281-287 |
| [17] | CADENA C, ANTHONY J L,SHAH J K,et al.Why is CO2 so soluble in imidazoliumm-based ionic liquids[J].Journal of the American Chemical Society,2004,126:5300-5308 10.1021/ja039615x |
| [18] | MORGAN D, LEE FERGUSON A, SCOVAZZO P,et al.Diffusivities of gases in room-temperature ionic liquids: Data and correlations obtained using a lag-time technique[J].Industrial Engineering Chemistry Research,2005,44(13): 4815-4823 10.1021/ie048825v |
Turn off MathJax -->
点击查看大图计量
文章访问数:897
HTML全文浏览数:710
PDF下载数:121
施引文献:0
出版历程
刊出日期:2018-11-29
-->
温度对离子液体支撑膜捕集CO2的影响
何丽娟1,,王荻1,
吴心伟1,
金光1,
田宝云2
1.内蒙古科技大学能源与环境学院，包头 014010
2.包头钢铁职业技术学院，包头 014010
基金项目: 国家自然科学基金资助项目（51106068,51566014） 内蒙古留学人员科技活动项目择优入选项目 内蒙古自治区创新引导基金资助项目（2017CXYD-1）
关键词: 离子液体/
支撑膜/
CO2捕集技术
摘要:传统CO2的捕集方法存在设备投资大、环境污染严重、再生能耗高等缺点，利用新型绿色工质离子液体负载于聚偏氟乙烯上制备离子液体支撑膜可以较好地解决该问题。在压力为0.2 MPa、流量为50 mL·min-1、温度在298~318 K范围内变化时，测定了CO2在1-乙基-3甲基咪唑双三氟磺酰亚胺盐（[Emim][Tf2N]）和1-乙基-3-甲基咪唑醋酸盐（[Emim][AC]）2种离子液体支撑膜中的渗透系数、溶解度和扩散系数，采用Van’t Hoff方程对溶解度数据进行关联、Arrhenius方程对渗透和扩散系数的数据进行关联。实验结果表明，CO2在2种离子液体支撑膜中的渗透和扩散系数随着温度的升高而增大，溶解度随着温度的升高而降低。[Emim][Tf2N]离子液体支撑膜对CO2的捕集性能优于[Emim][AC]支撑膜，CO2在[Emim][Tf2N]支撑膜中的溶解度最大值为0.447，在[Emim][AC]离子液体支撑膜中的最大溶解度为0.253，由此可确定离子液体支撑膜分离CO2的最佳工作温度，为其在工业应用中奠定良好的基础。
English Abstract
Effect of temperature on CO2 capture with the ionic liquid support membrane
HE Lijuan1,,WANG Di1,
WU Xinwei1,
JIN Guang1,
TIAN Baoyun2
1.Institute of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou 014010, China
2.Baotou Iron and Steel Vocational Technical College, Baotou 014010, China
Keywords: ionic liquid/
supporting membrane/
CO2 capture technology
Abstract:Traditional CO2 capture methods have disadvantages, such as large investment in equipment, serious environmental pollution, and high regeneration energy consumption etc.. The preparation of ionic liquid supporting film by a new type of green working ionic liquid loaded on PVDF can solve this problem . The permeability coefficient, solubility and diffusion coefficient of CO2 in two kinds of ionic liquid supporting membranes of 1-ethyl-3 methimidazole bisthree fluorosulfonimide salt [Emim][Tf2N] and 1-ethyl-3-methyl imidazole acetate [Emim][AC] were measured at the pressure of 0.2 MPa, the flow rate of 50 mL·min-1, and the temperature range of 298~318 K. The Van’t Hoff equation was used to correlate the solubility data, and the Arrhenius equation was used to correlate the permeability coefficient and diffusion coefficient data. The experimental results showed that with the increase of temperature, the permeability and diffusion coefficient increased, while the solubility decreased. The CO2 capture performance of [Emim][Tf2N] ionic liquid supporting membrane was better than [Emim][AC] supporting membrane, and the maximum CO2 solubility in [Emim][Tf2N] and [Emim][AC] supporting membranes was 0.447 and 0.253, respectively. Then the optimum working temperature for CO2 separation by ionic liquid supporting membrane can be determined accordingly, which lays a good foundation for its industrial application.
