Modeling, simulation and optimization of the rotating packed bed (RPB) absorber and stripper for MEA-based carbon capture

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.

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“…An investigation was conducted to review the effect of the decision variables on the optimization Im et al (2020) (Continued on following page)…”

Section: Observation Referencementioning

confidence: 99%

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

2023

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“…In surface renewal theory, the gas is absorbed by the liquid at the turbulent interface; this liquid is replaced by a fresh solution from the bulk zone. [66,126,130] However, in context of numerical modelling, Yang et al [82,131] installed a sampling tube near to the rotor, so when liquid comes, it collects it instantly. The sample liquid has been further used to obtain the real effective gas-liquid interface area and MT volume.…”

Section: The Current Status Of Numerical Studies On Rpb For Co 2 Capturementioning

confidence: 99%

Numerical modelling of rotating packed beds used for CO₂ capture processes: A review

et al. 2023

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Over the last decades, renewable and clean energy sources are being rigorously adopted along with carbon capture technologies to tackle the increasing carbon dioxide (CO2) concentration level in the environment. CO2 capture is a quintessential option for tackling global warming issues. In this context, the present paper has reviewed the process intensification equipment called a rotating packed bed (RPB), which is highly industry applicable due to high gravity (HiGee) force. This facilitates strong mass transfer characteristics, a compact design, and low energy consumption. In this review, the current research scenario of RPBs using numerical, computational fluid dynamics (CFD), and mathematical modelling, along with different machine learning approaches in the CO2 capture process, has been reviewed. The different geometry designs, hydrodynamic characteristics, performance parameters, research methods, and their effects on CO2 removal efficiency have been discussed. Furthermore, the latest experimental studies are also summarized, especially in the absorption and adsorption domain. Finally, recommendations have been given to support the RPBs in different industrial and commercial applications of CO2 removal.

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“…Many experimental facilities using RPB for the capture of CO 2 have been reported at institutions such as Newcastle University (UK), Beijing University of Chemical Technology (China) and Tsing Hua University (Taiwan), and findings from these studies indicate the potential of PI technology for full‐scale implementation 68,69,73‐75 . Modelling and simulation of PI technology for CO 2 capture were reported by many researchers, mostly to optimize the technology for rapid full‐scale implementation 65,66,71,76‐83 …”

Section: Process Intensification Options For Pccmentioning

confidence: 99%

“…Process modelling, simulation and optimization of intensified PCC using conventional reboiler and heat exchanger was reported in Im et al 80 . Kang et al 84 .…”

Section: Process Intensification Options For Pccmentioning

confidence: 99%

“…68,69,[73][74][75] 75 Modelling and simulation of PI technology for CO 2 capture were reported by many researchers, mostly to optimize the technology for rapid full-scale implementation. 65,66,71,[76][77][78][79][80][81][82][83] Process modelling, simulation and optimization of intensified PCC using conventional reboiler and heat exchanger was reported in Im et al 80 Kang et al 84 reported a significant volume reduction using RPB for CO 2 capture compared to a conventional PB absorber.…”

Section: Static Mixermentioning

confidence: 99%

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Novelty in fossil fuel carbon abatement technologies in the 21^st Century: post‐combustion carbon capture

Joel

Isa

2022

J of Chemical Tech & Biotech

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A global net zero target by mid-century and keeping the maximum global temperature rise to below 1.5 °C was agreed by nearly 200 nations at the 26th UN Climate Change Conference of the Parties. The Intergovernmental Panel on Climate Change advises that emission cuts by 45% are needed by 2030 in order to maintain the global temperature rise below the 1.5 °C target. To achieve this target, it is necessary to investigate technological options that are economically viable and globally acceptable for commercial deployment. This review paper looks at the new technologies needed to reduce CO 2 emission and to motivate commercial deployment, considering that the commercial deployment of CO 2 has been slowed down as a result of high capital and operating expenses which invariably increase the cost of energy. The paper presents a review on early years of process intensification technologies as well as a discussion on potential new process intensification options for CO 2 capture, with suggestions on how to modify those technologies for suitable application to solvent-based carbon capture. The work further discusses current process intensification technologies used for CO 2 capture applications. Solvent developments for enhancing CO 2 capture also are discussed as they contribute to cutting down the sizes of the units as well as decreasing the cost of regeneration which leads to reduction in capital and operating costs. A process flow diagram using a mop fan for capture of CO 2 from buildings is proposed. In addition, a new flow diagram is proposed for using loop reactor technology to capture CO 2 from large point sources, and finally a new process diagram using rotating packed bed absorber combined with sono-assisted regenerator is presented for improved performance of CO 2 capture technology. Recommendations on these diagrams are made to help ensure transition toward the net zero target.

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Modeling, simulation and optimization of the rotating packed bed (RPB) absorber and stripper for MEA-based carbon capture

Cited by 16 publications

References 37 publications

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

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

Numerical modelling of rotating packed beds used for CO₂ capture processes: A review

Novelty in fossil fuel carbon abatement technologies in the 21^st Century: post‐combustion carbon capture

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Modeling, simulation and optimization of the rotating packed bed (RPB) absorber and stripper for MEA-based carbon capture

Cited by 16 publications

References 37 publications

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

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

Numerical modelling of rotating packed beds used for CO2 capture processes: A review

Novelty in fossil fuel carbon abatement technologies in the 21st Century: post‐combustion carbon capture

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Product

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Numerical modelling of rotating packed beds used for CO₂ capture processes: A review

Novelty in fossil fuel carbon abatement technologies in the 21^st Century: post‐combustion carbon capture