Poly(vinylbenzyl chloride)-based poly(ionic liquids) as membranes for CO₂ capture from flue gas

Abstract

Poly(ionic liquid)-based thin film composite membranes capture carbon dioxide from mixed gas streams imitating flue gas separations under various process conditions.

Ionic Liquids‐Based Membranes for Carbon Dioxide Separation

“…However, their CO 2 /N 2 selectivity is less than 31 at 35 °C owing to the physical aging of the polymers. Nikolaeva et al . prepared thin PILMs with post‐modification of commercial polyvinylbenzyl chloride (PVBC) by employing a solvent casting method.…”

“…However, their CO 2 /N 2 selectivity is less than 31 at 35°C owing to the physical aging of the polymers. Nikolaeva et al [66] prepared thin PILMs with post-modification of commercial polyvinylbenzyl chloride (PVBC) by employing a solvent casting method. (Figure 5a) They demonstrated that the intrinsic material properties of PILs was determined by ion asymmetry and the presence of polar alkyl groups.…”

Solid‐State Poly(ionic liquid) Gels for Simultaneous CO2 Adsorption and Electrochemical Reduction

“…[22] Poly(ionic liquids) (PILs), polymers derived from monomers basedo nI Ls,h ave also been investigated for CO 2 capturing. [23][24][25][26] PILs are ionically conductive and their CO 2 adsorption capacity is between 2a nd 20 mg g À1 ,which is higher than their IL counterparts. [2,[27][28][29][30][31] Managing carbon dioxide (CO 2 )r eleased from large-scale industrialp rocesses is of great importance,y et there remain significant technical challenges.H erein, the fabrication of 1mm-thicks olid-state electrochemical devices based on poly-(ionic liquid) ionogels with embedded electrodes capable of both adsorption and electrochemical reduction of CO 2 is reported.T he ionogelsa re prepared via radical polymerization and chemical crosslinking of avinyl imidazolium trifluoromethanesulfonimide ionic liquid monomer in the presence of additional ionic liquids (ILs) that act as swellinga gents and enhance ionic conductivity.…”

“…However, these systems can only operate at low pressures in order to prevent IL loss during the recovery and separation process . Poly(ionic liquids) (PILs), polymers derived from monomers based on ILs, have also been investigated for CO 2 capturing . PILs are ionically conductive and their CO 2 adsorption capacity is between 2 and 20 mg g −1 , which is higher than their IL counterparts …”

Effect of reactive diluent on gas separation behavior of photocurable acrylated polyurethane composite membranes

“…The separation of carbon dioxide (CO 2 ) from other light gases is a process with considerable attention of researchers in industry and academia . Since membrane technology has several prominent properties such as low energy consumption, low capital investment, and simple operations, it is one of the well‐known energy‐efficient and economical techniques for gas separation applications . Separation through membranes is dominated by diffusivity and solubility of permeating materials in membranes.…”