Simultaneous removal of gaseous pollutants with a novel swirl wet scrubber

Pourmohammadbagher, Amin; Jamshidi, E.; Ebrahim, H. Ale; Dabir, Bahram; Mehrabani-Zeinabad, Mitra

doi:10.1016/j.cep.2011.06.001

Cited by 20 publications

(5 citation statements)

References 35 publications

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“…However, for high sulfur concentrations, seawater alone could not achieve the same efficiency, but by adding NaOH to the seawater, a significant increase in removal efficiency was found. This is in agreement with [Pourmohammadbagher et al (108)], where a swirl wet scrubber was investigated for SO 2 , NO, NO 2 , and CO 2 removal. It was found that the removal efficiencies for the different species increased with NaOH addition, which indicates the importance of the acid buffer capacity in the liquid medium used, whether this is seawater or freshwater with added alkali.…”

Section: State Of the Artsupporting

confidence: 92%

Modelling and Analysis of Seawater Scrubbers for Reducing SOx Emissions from Marine Engines

Simonsen

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Air pollution has increased in recent years and is one of the largest environmental risks to human health, where one-in-nine deaths can be linked to air pollution. One of these pollutants is SO x , which include SO 2 and SO 3 emissions, where the marine sector accounts for 13 % of the global SO x emissions. The International Maritime Organization, IMO, adopted the International Convention for the Prevention of Pollution from Ships, MARPOL, in 1973, as a means to reduce pollution from ships. MARPOL consists of six annexes, where Annex VI: Prevention of Air Pollution from Ships was adopted in 2005 and concerns nitrogen oxide, particulate matter, and sulfur oxide emissions. The SO x regulations have changed over time, where further restrictions will be adopted in 2020, where the equivalent sulfur content in the flue gas must be 0.5 % and 0.1 % by mass outside and inside Emissions Control Areas, ECAs, respectively, which are typically areas near coastal lines.

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Section: State Of the Artsupporting

confidence: 92%

Modelling and Analysis of Seawater Scrubbers for Reducing SOx Emissions from Marine Engines

Simonsen

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“…Small-scale vortex devices such as reactors/separators (SVR/Ss) use the vortex flow to generate a strong centrifugal field and to achieve process intensification including multiphase separation and mass transfer [1][2][3][4][5][6]. In recent years, these were developed for industrial applications with simplicity, minimization, and lightweight [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Simulation of Continuous Phase Flow in Small‐Scale Vortex Devices: Model Applicability Assessment

et al. 2023

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To investigate the applicability of flow models used for numerical simulation of vortex devices, reorganization group k‐ε, Reynolds stress model, delayed detached eddy simulation (DDES), and large eddy simulation were evaluated for small‐scale vortex reactors/separators. Their comprehensive performances were compared in terms of the assessment indicators including root mean squares error, coefficient of determination R2, and convergence time. It was found that considering the balance of techno‐economics, DDES is the better option with relatively high prediction accuracy (RMSE = 0.5577 and R2 = 0.9591) and low computational cost (∼500 s) under a specified computational platform. The results can provide a positive reference for the selection and improvement of the flow models used for vortex devices.

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“…An ejector is a simple mechanical device that uses the low pressure created by the expansion of high-pressure motive fluid (primary) and generates a vacuum, which is then used to entrain and subsequently compress a secondary fluid [1]. The widespread application of an ejector includes: the removal of ash from flue gases [2]; in desalination plants [3]; solid oxide fuel cells [4]; refrigeration machines [5]; fueling of hydrogen vehicles [6]; and power generation cycle [7]. Ejectors could be integrated into various energy conversion processes to improve the energy efficiency, 2 of 19 and have been actively researched since the 1950s [8].…”

Section: Introductionmentioning

confidence: 99%

Numerical Modeling of Ejector and Development of Improved Methods for the Design of Ejector-Assisted Refrigeration System

et al. 2020

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An ejector is a simple mechanical device that can be integrated with power generation or the refrigeration cycle to enhance their performance. Owing to the complex flow behavior in the ejector, the performance prediction of the ejector is done by numerical simulations. However, to evaluate the performance of an ejector integrated power cycle or refrigeration cycle, the need for simpler and more reliable thermodynamic models to estimate the performance of the ejector persists. This research, therefore, aims at developing a single mathematical correlation that can predict the ejector performance with reasonable accuracy. The proposed correlation relates the entrainment ratio and the pressure rise across the ejector to the area ratio and the mass flow rate of the primary flow. R141b is selected as the ejector refrigerant, and the results obtained through the proposed correlation are validated through numerical solutions. The comparison between the analytical and numerical with experimental results provided an error of less than 8.4% and 4.29%, respectively.

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Simultaneous removal of gaseous pollutants with a novel swirl wet scrubber

Cited by 20 publications

References 35 publications

Modelling and Analysis of Seawater Scrubbers for Reducing SOx Emissions from Marine Engines

Modelling and Analysis of Seawater Scrubbers for Reducing SOx Emissions from Marine Engines

Simulation of Continuous Phase Flow in Small‐Scale Vortex Devices: Model Applicability Assessment

Numerical Modeling of Ejector and Development of Improved Methods for the Design of Ejector-Assisted Refrigeration System

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