Modeling of Limestone Dissolution for Flue Gas Desulfurization with Novel Implications

Blasio, Cataldo De; Salierno, Gabriel; Sinatra, Donatella; Cassanello, Miryan

doi:10.3390/en13236164

Cited by 3 publications

(2 citation statements)

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“…In the framework of the methods used to abate the SO 2 released by fuel combustion, De Blasio et al [175] presented a detailed analytical solution of solid particles dissolving in multiphase chemical-reaction systems. Solid-liquid dissolution is a central technique in many industrial applications, such as process engineering, pharmaceutics and pollution control.…”

Section: Energy Saving and Emission Reductionmentioning

confidence: 99%

Recent Advances in Low-Carbon and Sustainable, Efficient Technology: Strategies and Applications

et al. 2022

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The COVID-19 pandemic has had a significant impact on the supply chains of traditional fossil fuels. According to a report by the International Energy Agency (IEA) from 2020, oil-refining activity fell by more than the IEA had anticipated. It was also assumed that the demand in 2021 would likely be 2.6 million bpd below the 2019 levels. However, renewable markets have shown strong resilience during the crisis. It was determined that renewables are on track to meet 80% of the growth in electricity demand over the next 10 years and that sustainable energy will act as the primary source of electricity production instead of coal. On the other hand, the report also emphasized that measures for reducing environmental pollution and CO2 emissions are still insufficient and that significant current investments should be further expanded. The Sustainable Development of Energy, Water and Environment Systems (SDEWES) conference series is dedicated to the advancement and dissemination of knowledge on methods, policies and technologies for improving the sustainability of development by decoupling growth from the use of natural resources. The 15th SDEWES conference was held online from 1–5 September 2020; more than 300 reports with 7 special sections were organized on the virtual conference platform. This paper presents the major achievements of the recommended papers in the Special Issue of Energies. Additionally, related studies connected to the above papers published in the SDEWES series are also introduced, including the four main research fields of energy saving and emission reduction, renewable energy applications, the development of district heating systems, and the economic assessment of sustainable energy.

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Section: Energy Saving and Emission Reductionmentioning

confidence: 99%

Recent Advances in Low-Carbon and Sustainable, Efficient Technology: Strategies and Applications

et al. 2022

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“…By implementing chemical kinetics, including gypsum formation models, they gained detailed insights into actual limestone consumption. The latter is also dependent on the actual limestone dissolution rate [16]. To model the effects of agitators on air dispersion in different aeration systems, either direct modeling with the MRF approach is used or the agitator flow field is modeled as a linear momentum source [17].…”

Section: Introductionmentioning

confidence: 99%

Numerical Modeling of Two-Phase Flow inside a Wet Flue Gas Absorber Sump

Vovk,

Ravnik

2023

Energies

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A numerical model of a flue gas scrubber sump is developed with the aim of enabling optimization of the design of the sump in order to reduce energy consumption. In this model, the multiphase flow of the continuous phase, i.e., water, and the dispersed phase, i.e., air bubbles, is considered. The air that is blown in front of the agitators, as well as the influence of the flow field of the agitators on the distribution of the dispersed phase and the recirculation pumps as outlet, is modeled. The bubble Sauter mean diameter is modeled using the population balance model. The model is used to analyze operating parameters such as the bubble retention time, the average air volume fraction, bubble Sauter mean diameter, the local distribution of the bubble size and the amount of air escaping from the pump outlets at two operating points. The purpose of the model is to simulate the two-phase flow in the sump of the flue gas scrubber using air dispersion technology with a combination of spargers and agitators, which, when optimized, reduces energy consumption by 33%. The results show that the homogeneity of air is lower in the bottom part of the absorber sump and that the amount of air escaping through recirculation pipes equals 1.2% of the total air blown into the absorber sump. The escaping air consists mainly of bubbles smaller than 6 mm. Additional operating point results show that halving the magnitude of the linear momentum source lowers the air retention, as well as the average homogeneity of the dispersed air.

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Accelerating mitigation of climate change with sustainable development of energy, water and environment systems

Kılkış

Krajačić

Duić

et al. 2021

Energy Conversion and Management

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Modeling of Limestone Dissolution for Flue Gas Desulfurization with Novel Implications

Cited by 3 publications

References 41 publications

Recent Advances in Low-Carbon and Sustainable, Efficient Technology: Strategies and Applications

Recent Advances in Low-Carbon and Sustainable, Efficient Technology: Strategies and Applications

Numerical Modeling of Two-Phase Flow inside a Wet Flue Gas Absorber Sump

Accelerating mitigation of climate change with sustainable development of energy, water and environment systems

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