Removal of Ionic Liquids from Oil Sands Processing Solution by Ion-Exchange Resin
Source abstract
Abstract
Ionic liquids (ILs) have been reported to be good process aids for enhanced bitumen recovery from oil sands. However, after the extraction, some ionic liquids are left in the residual solids or solutions. Herein, a washing–ion exchange combined method has been designed for the removal of two imidazolium-based ILs, ([Bmim][BF4] and [Emim][BF4]), from residual sands after ILs-enhanced solvent extraction of oil sands. This process was conducted as two steps: water washing of the residual solids to remove ILs into aqueous solution; adsorption and desorption of ILs from the solution by the sulfonic acid cation-exchange resin (Amberlite IR 120Na). Surface characterization showed that the hydrophilic ionic liquids could be completely removed from the solid surfaces by 3 times of water washing. The ionic liquids solution was treated by the ion-exchange resin. Results showed that more than 95% of [Bmim][BF4] and 90% of [Emim][BF4] could be adsorbed by the resins at 20 °C with contact time of 30 min. The effects of some typical coexisted chemicals and minerals, such as salinity, kaolinite (Al4[Si4O10](OH)8), and silica (SiO2), in the solution on the adsorption of ionic liquids have also been investigated. Results showed that both kaolinite and SiO2 exerted a slight effect on the uptake of [Bmim][BF4]. However, it was observed that increasing the ionic strength of the solution by adding salts would deteriorate the adsorption of [Bmim]+ on the resin. The adsorption behaviors of two ILs fit well with the Sips model, suggesting the heterogeneous adsorption of ionic liquids onto resin. The adsorption of ionic liquids onto Amberlite IR 120Na resin was found to be pseudo-second-order adsorption. The regeneration tests showed stable performance of ion-exchange resins over three adsorption–desorption cycles.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Ionic liquids properties and applications · Enhanced Oil Recovery Techniques · Petroleum Processing and Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
National Engineering Research Center of Distillation Technology, Tianjin 300072, China
Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
China Petroleum Pipeline Engineering Co. Ltd. Tianjin Branch, Tianjin 300000, China
Funding
National Natural Science Foundation of China
References (50)
Show source-provided references
1. Room-temperature ionic liquids. Solvents for synthesis and catalysis10.1021/cr980032t ↗
2. Room-temperature ionic liquids: Solvents for synthesis and catalysis. 210.1021/cr1003248 ↗
3. Characterization and comparison of hydrophilic and hydrophobic room temperature ionic liquids incorporating the imidazolium cation10.1039/b103275p ↗
4. A review of ionic liquids in chromatographic and electromigration techniques10.1365/s10337-008-0662-y ↗
5. Catalytic reactions in ionic liquids10.1039/b107270f ↗
6. Ionic liquid enhanced solvent extraction for bitumen recovery from oil sands10.1021/ef2010942 ↗
7. Recovery of bitumen from utah tar sands using ionic liquids10.1021/ef100765u ↗
8. Recovery of bitumen from oil or tar sands using ionic liquids10.1021/ef9009586 ↗
9. Ionic liquid-assisted solvent extraction for unconventional oil recovery: Computational simulation and experimental tests10.1021/acs.energyfuels.6b01291 ↗
10. Study on the absorbability, regeneration characteristics and thermal stability of ionic liquids for vocs removal10.1016/j.cej.2017.06.178 ↗
11. Feasibility of thermal separation in recycling of the distillable ionic liquid [DBNH][OAc] in cellulose fiber production10.1016/j.cherd.2016.08.032 ↗
12. Recovery of organic products from ionic liquids using supercritical carbon dioxide10.1021/ie000710d ↗
13. Rapid dissolution of DNA in a novel bio-based ionic liquid with long-term structural and chemical stability: Successful recycling of the ionic liquid for reuse in the process10.1039/c3cc42829j ↗
14. Development of back-extraction and recyclability routes for ionic-liquid-based aqueous two-phase systems10.1039/C3GC41999A ↗
15. Controlling the aqueous miscibility of ionic liquids: Aqueous biphasic systems of water-miscible ionic liquids and water-structuring salts for recycle, metathesis, and separations10.1021/ja0351802 ↗
16. Concentration of ionic liquids by nanofiltration for recycling: Filtration behavior and modeling10.1016/j.seppur.2016.03.042 ↗
17. Separation and concentration of ionic liquid aqueous solution by vacuum membrane distillation10.1016/j.memsci.2016.07.017 ↗
18. Microporous zeolite-templated carbon as an adsorbent for the removal of long alkyl-chained imidazolium-based ionic liquid from aqueous media10.1016/j.micromeso.2017.10.030 ↗
19. Fixed-bed adsorption of ionic liquids onto activated carbon from aqueous phase10.1016/j.jece.2017.10.014 ↗
20. On the kinetics of ionic liquid adsorption onto activated carbons from aqueous solution10.1021/ie3028729 ↗
21. Adsorption of ionic liquids from aqueous effluents by activated carbon10.1016/j.carbon.2009.03.028 ↗
22. Removal of ionic liquid by engineered bentonite from aqueous solution10.1016/j.jtice.2015.02.028 ↗
23. Removal of 1-ethyl-3-methylimidazolium cations with bacterial biosorbents from aqueous media10.1016/j.jhazmat.2012.11.018 ↗
24. Use of ion-exchange resins for the adsorption of the cationic part of ionic liquid, 1-ethyl-3-methylimidazolium10.1016/j.cej.2012.10.035 ↗
25. Adsorption of imidazolium-based ionic liquids with different chemical structures onto various resins from aqueous solutions10.1039/C5RA04191K ↗
26. Two solid-phase recycling method for basic ionic liquid [C4mim]AC by macroporous resin and ion exchange resin from schisandra chinensis fruits extract10.1016/j.jchromb.2014.11.003 ↗
27. Recovery of benzothiazolium ionic liquids from the coexisting glucose by ion-exchange resins10.1016/j.molliq.2016.12.012 ↗
28. The physical properties of aqueous solutions of the ionic liquid [Bmim][BF4]10.1007/s10953-006-9064-7 ↗
29. Adsorption of cefotaxime sodium salt on polymer coated ion exchange resin microparticles: Kinetics, equilibrium and thermodynamic studies10.1016/j.carbpol.2011.02.039 ↗
30. Kinetics of zinc ions removal from effluents using ion exchange resin10.1016/j.cej.2008.05.019 ↗
31. Adsorption kinetics and thermodynamic parameters of cationic dyes from aqueous solutions by using a new strong cation-exchange resin10.1016/j.cej.2009.04.051 ↗
32. The study of various parameters affecting the ion exchange of Cu2+, Zn2+, Ni2+, Cd2+, and Pb2+ from aqueous solution on dowex 50w synthetic resin10.1016/j.jhazmat.2005.10.052 ↗
33. Adsorption of Cu(ii), Zn(ii), Ni(ii), Pb(ii), and Cd(ii) from aqueous solution on Amberlite IR-120 synthetic resin10.1016/j.jcis.2004.08.147 ↗
34. Kinetics, isotherm and thermodynamic investigations for the adsorption of Co(ii) ion onto crystal violet modified Amberlite IR-120 resin10.1007/s11581-014-1292-z ↗
35. Insights into the modeling of adsorption isotherm systems10.1016/j.cej.2009.09.013 ↗
36. Uber die adsorption in losungen
37. Measurement and modeling of adsorption equilibria of imidazolium-based ionic liquids on activated carbon from aqueous solutions10.1016/j.fluid.2017.01.021 ↗
38. Adsorption of alkylimidazolium and alkylpyridinium ionic liquids onto natural soils10.1021/es062014w ↗
39. Combined form of langmuir and freundlich equations10.1063/1.1746922 ↗
40. Characterization of molecularly imprinted polymers with the langmuir−freundlich isotherm10.1021/ac0105686 ↗
41. Biosorbents based on agricultural wastes for ionic liquid removal: An approach to agricultural wastes management10.1016/j.chemosphere.2016.08.133 ↗
42. Second-order kinetic model for the sorption of cadmium onto tree fern: A comparison of linear and non-linear methods10.1016/j.watres.2005.10.040 ↗
43. Displacement mechanism of binary competitive adsorption for aqueous divalent metal ions onto a novel ida-chelating resin: Isotherm and kinetic modeling10.1016/j.watres.2010.11.009 ↗
44. Hepler, L.G., and Smith, R.G. (1994). The Alberta Oil Sands: Industrial Procedures for Extraction and Some Recent Fundamental Research, Alberta Oil Sands Technology and Research Authority.
45. Wettability determination of solids isolated from oil sands10.1016/j.colsurfa.2008.11.055 ↗
46. Sorption and desorption of imidazolium based ionic liquids in different soil types10.1016/j.chemosphere.2008.09.049 ↗
47. Oxidized template-synthesized mesoporous carbon with ph-dependent adsorption activity: A promising adsorbent for removal of hydrophilic ionic liquid10.1016/j.apsusc.2018.01.211 ↗
48. A modified langmuir model for the prediction of the effects of ionic strength on the equilibrium characteristics of protein adsorption onto ion exchange/affinity adsorbents10.1016/S1385-8947(00)00197-2 ↗
49. Evaluation of band structure and concentration of ionic liquid bmimbf4 in molecular mixtures by using second derivatives of ftir spectra10.1016/j.jqsrt.2006.02.009 ↗
50. Uranyl ions adsorption by novel metal hydroxides loaded Amberlite IR 12010.1016/j.jenvrad.2014.02.008 ↗