Parametric investigation of CO2-MIPs production using suspension polymerisation metho

Ali Nabavi (1251468)

Beichen Li (7129148)

Eseosa M. Eguagie (7129145)

Goran Vladisavljevic (1253448)

Sai Gu (1504345)

Stella Georgiadou (1252638)

English

Loughborough University Institutional Repository

 PARAMETRIC INVESTIGATION OF CO2-MIPS PRODUCTION USING SUSPENSION POLYMERISATION METHOD  Seyed Ali Nabavi*, Eseosa M. Eguagie**,°, Beichen Li**,°, Stella Georgiadou**, Goran T. Vladisavljević**, Sai Gu*  *  School of Energy, Environment & Agrifood (SEEA), Cranfield University, Cranfield, MK43 0AL, United Kingdom. s.nabavi@cranfield.ac.uk; s.gu@cranfield.ac.uk .   **  Department of Chemical Engineering, Loughborough University, Loughborough LE11 3TU, United Kingdom. S.Georgiadou@lboro.ac.uk; G.Vladisavljevic@lboro.ac.uk . ° These authors have contributed equally to this work.  Keywords: Molecularly imprinting polymers, Suspension polymerizations, CO2 sorbents, post-combustion carbon capture.   Abstract: Synthesis of a promising capture material based on CO2 molecularly imprinting polymers, CO2-MIPs, using suspension polymerization method has been studied. Molecular imprinting technique is used to create polymers with molecular recognition properties based on a specific molecule. Therefore, the synthetic polymers have a high selectivity to the target molecule. The inherent hydrophobic properties of CO2-MIPs make them and ideal capture material to remove CO2 from flue gases containing steam, which is a challenge in well-known CO2 sorbents, such as metal organic frameworks (MOF). In addition, CO2-MIPs developed in this study adsorb CO2 molecules through a non-covalent interaction. The non-covalent bonds are weak and can be readily broken when heated. Therefore, the required energy for separation of CO2 molecules adsorbed on the surface of CO2-MIPs is considerably low.   Previously, bulk polymerization was used to produced, CO2-MIPs (Zhao et al., 2014). Although, a relative good CO2 capturing capacity and high stable capture efficiency in repetitive cycles achieved, the process was consist of grinding and sieving of produced polymers, which is time consuming, laborious, and just 30-40% of polymers with non-uniform size and irregular shape could be recovered.   In this study, suspension polymerization method was used where acrylamide, EDGMA, ethanedioic acid AIBN are used as a functional monomer, cross-linker, dummy template and initiator respectively. Uniform and spherical shape of CO2-MIPs produced with this method, dramatically increase the surface area and consequently loading capacity. In addition, the impact of agitation speed, concentration of stabilizer, and progen types on particle morphology and capture efficiency has been systematically investigated. CO2-MIPs with size over the range of 5-200 µm were produced, which based on their size can be used in domestic and industrial applications such as CO2 filters or CO2 capture material in post-combustion carbon capture.   Figure 1.Produced CO2-MIPs using suspension polymerisation method.    References: Zhao, Y., Shen, Y., Ma, G., Hao, R.; Adsorption Separation of Carbon Dioxide from Flue Gas by a Molecularly Imprinted Adsorbent, Environ. Sci. Technol., 48, 1601–1608, 2014.  Acknowledgements: The authors gratefully acknowledge the financial support for this work by the UK Engineering and Physical Sciences Research Council (EPSRC), project grant: EP/J020184/1.  

Parametric investigation of CO2-MIPs production using suspension polymerisation method

https://repository.lboro.ac.uk/articles/Parametric_investigation_of_CO2-MIPs_production_using_suspension_polymerisation_method/9339713/files/16948391.pdf

Parametric investigation of CO2-MIPs production using suspension polymerisation method

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