A review of process intensified CO2 capture in RPB for sustainability and contribution to industrial net zero

Abstract

Carbon dioxide (CO2), a significant greenhouse gas released from power plants and industries, substantially impacts climate change; minimizing it and achieving carbon net zero is essential globally. In the direction of reducing CO2 emissions into the atmosphere, post-combustion carbon capture from large point CO2 emitters by chemical absorption involving the absorption of this gas in a capturing fluid is a commonly used and efficacious mechanism. Researchers have worked on the process using conventional columns. However, process intensification technology is required because of the high capital cost, the absorption column height, and the traditional columns’ low energy efficiency. Rotating packed bed (RPB) process intensification equipment has been identified as a suitable technology for enhanced carbon capture using an absorbing fluid. This article reviews and discusses recent model developments in the post-combustion CO2 capture process intensification using rotating packed beds. In the literature, various researchers have developed steady-state mathematical models regarding mass balance and energy balance equations in gas and liquid phases using ordinary or partial differential equations. Due to the circular shape, the equations are considered in a radial direction and have been solved using a numerical approach and simulated using different software platforms, viz. MATLAB, FORTRAN, and gPROMS. A comparison of various correlations has been presented. The models predict the mole fraction of absorbed CO2 and correspond well with the experimental results. Along with these models, an experimental data review on rotating packed bed is also included in this work.

Density, Viscosity, and Surface Tension of Aqueous 1-Methylpiperazine and Its Carbonated Solvents for the CO2 Capture Process

“…Capturing CO 2 from industrial exhaust using different amine solutions with postcombustion capture technology (PCC) is a proven method, and its deployment is necessary to address industrial decarburization. 1 Aqueous solutions of amines, alkanolamines, ionic liquids (ILs), and recently some amino acids have also been used as absorbents for CO 2 removal. 2 However, an energy-efficient solvent is essential for the PCC of CO 2 in a regenerative chemical absorption process.…”

Impact of Vapor Bypasses on Separation Performance of Rotating Packed Beds in Distillation

“…A fundamental technical difference between RPBs and conventional equipment is the need of bearings and sealings due to the rotational parts. RPBs find application in stripping, absorption, nanoparticle production, heat transfer, adsorption, extraction, reaction, and distillation, with this paper focusing on the latter.…”

Electrospun nanofibers synthesis enhancing the activity of energy storage devices/electrochemical and biosensor applications

“…The persistent photo reaction arrived at its most extreme worth under light at a recurrence of 550 nm, which was near the SPR ingestion band of the AuNPs nanofibers (Figure 19b). These discoveries exhibited that gold nanoparticles implanted in silica nanowires can possibly work as recurrence controlled optical nano switches [217].…”

“…These assessments were performed utilizing room temperature. (This passage has been reproduced with permission from [217]; 2009 Elsevier Ltd.) (c) A schematic representation of the configuration of the GaN nanofiber UV photodetector. The sources and channel contacts are made of silver strips, and the back entrance is a substrate made of p-type silicon that has been heavily doped.…”