Large-scale preparation of multilayer composite membranes for post-combustion CO2 capture

Fabrication of High-Performance Nanofiltration Membrane Using Polydopamine and Carbon Nitride as the Interlayer

“…The better performance of M5 membrane could be attributed to the use of PDA-g-C 3 N 4 as the interlayer material to avoid pore penetration of the selective layer. The addition of g-C 3 N 4 nanosheets can form a thin and defect-free interlayer with PDA and completely cover the surface of the PES substrate [48]. Thus, the positively charged NF membrane prepared with PDA-g-C 3 N 4 as the interlayer has better separation performance and permeance.…”

Investigating the Performance of Ethanolamine and Benzylamine Blends as Promising Sorbents for Postcombustion CO2 Capture through 13C NMR Speciation and Heat of CO2 Absorption Analysis

“…3,4 Among the various PCC technologies developed, the chemical absorption using amine-based liquid solutions is considered the most mature and functional method and has several advantages in terms of selectivity for CO 2 , absorption rate, and loading capacity 5 compared to other techniques, such as adsorption with solid sorbents 6 or the use of a membrane contactor. 7 It is well known that there are three kinds of amine that can be used to capture CO 2 from a flue gas, namely, primary, secondary, and tertiary amines. 8,9 In general, in an aqueous solution, primary and secondary amines can react directly (and rapidly) with CO 2 to form stable carbamates, ensuring efficient separation and a high CO 2 absorption rate but requiring high temperatures (and energy) to regenerate the sorbent.…”

“…Unfortunately, the combustion of fossil fuels leads to an inevitable increase in the concentration of carbon dioxide (CO 2 ) in the atmosphere, which is closely related to the so-called global warming, one of the most serious environmental challenges. , As a result, the topic of carbon capture and storage (CCS) has recently attracted a lot of attention from the scientific community and from politicians in every government. According to the best technologies identified so far, postcombustion capture (PCC) has become a commonly accepted method for controlling CO 2 emission from energy-related sources. , Among the various PCC technologies developed, the chemical absorption using amine-based liquid solutions is considered the most mature and functional method and has several advantages in terms of selectivity for CO 2 , absorption rate, and loading capacity compared to other techniques, such as adsorption with solid sorbents or the use of a membrane contactor . It is well known that there are three kinds of amine that can be used to capture CO 2 from a flue gas, namely, primary, secondary, and tertiary amines. , In general, in an aqueous solution, primary and secondary amines can react directly (and rapidly) with CO 2 to form stable carbamates, ensuring efficient separation and a high CO 2 absorption rate but requiring high temperatures (and energy) to regenerate the sorbent.…”

Experimental and simulation study of CO2 breakthrough curves in a fixed-bed adsorption process

“…The amine scrubbing for CO 2 capture is currently operating on a large scale; trade-offs are associated with energy intensive regeneration, toxicity, and instability of solvents [7]. Polymeric membranes generally suffer from expensive materials, laboratory equipment, and manufacturing, which prevents rapid development [8]. The adsorption phenomenon is based on a simple physical principle, however, there are challenges to be overcome, e.g., improvement of adsorption materials, large pressure drops in packed bed, and technical aspects of heatinduced desorption.…”