Electrochemical sulfur dioxide concentrator for flue-gas desulfurization

A new wet FGD process in which sulfur dioxide was absorbed in the bubble reactor using granular limestone simultaneously adding acetic acid had been proposed. The main difference compared to conventional wet FGD process was the ability of the new process to utilize granular limestone directly as a desulphurization reagent simultaneously adding acetic acid. Thus, the pulverizing of limestone, which causes power consumption, can be saved. Only using granular limestone directly as absorbent without acetic acid, SO2 removal efficiency and limestone utilization were too low. Adding some concentration of acetic acid, the performance of the new wet FGD process was confirmed to be equal to or higher than that of a conventional process in various tests. Various parameters of the new FGD process which would affect the sulfur dioxide removal efficiency and limestone utilization were studied.

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Dissolution kinetics of sorbents and effect of additives in wet flue gas desulfurization

Reviews in Chemical Engineering ◽

10.1515/revce-2014-0024 ◽

2014 ◽

Vol 30 (6) ◽

Cited By ~ 6

Author(s):

Lawrence Koech ◽

Ray Everson ◽

Hein Neomagus ◽

Hilary Rutto

Keyword(s):

Sulfur Dioxide ◽

Flue Gas ◽

Dissolution Kinetics ◽

Flue Gas Desulfurization ◽

Power Stations ◽

Effect Of Additives ◽

Kinetics Of

AbstractFlue gas desulfurization (FGD) technology has been adopted by a number of power stations for the removal of sulfur dioxide (SO

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The Adsorbed States of Sulfur Dioxide on Activated Carbon in Flue Gas Desulfurization Process

The Journal of the Society of Chemical Industry Japan ◽

10.1246/nikkashi1898.74.8_1576 ◽

1971 ◽

Vol 74 (8) ◽

pp. 1576-1581 ◽

Cited By ~ 6

Author(s):

Kyoko YAMAMOTO ◽

Michiharu SEKI

Keyword(s):

Activated Carbon ◽

Sulfur Dioxide ◽

Flue Gas ◽

Flue Gas Desulfurization ◽

Desulfurization Process

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The development of a genetic method to optimize the flue gas desulfurization process

Artificial Intelligence ◽

10.15407/jai2021.01.059 ◽

2021 ◽

Vol 26 (jai2021.26(1)) ◽

pp. 59-73

Author(s):

Fedorchenko I ◽

◽

Oliinyk A ◽

Stepanenko A ◽

Fedoronchak T ◽

...

Keyword(s):

Sulfur Dioxide ◽

Flue Gas ◽

Power Plants ◽

Electric Energy ◽

Flue Gas Desulfurization ◽

Adaptive Mutation ◽

So2 Emissions ◽

Genetic Method ◽

Desulfurization Process ◽

Using Data

Sulfur dioxide is one of the most commonly found gases, which contaminates the air, damages human health and the environment. To decrease the damage, it is important to control the emissions on power stations, as the major part of sulfur dioxide in atmosphere is produced during electric energy generation on power plants. The present work describes flue gas desulfurization process optimizing strategy using data mining. The optimisation modified genetic method of flue gas desulfurization process based on artificial neural network was developed. It affords to represent the time series characteristics and factual efficiency influence on desulfurization and increase its precision of prediction. The vital difference between this developed genetic method and other similar methods is in using adaptive mutation, that uses the level of population development in working process. It means that less important genes will mutate in chromosome more probable than high suitability genes. It increases accuracy and their role in searching. The comparison exercise of developed method and other methods was done with the result that new method gives the smallest predictive error (in the amount of released SO2) and helps to decrease the time in prediction of efficiency of flue gas desulfurization. The results afford to use this method to increase efficiency in flue gas desulfurization process and to decrease SO2 emissions into the atmosphere

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Influence on Desulfurization Capacity of Flue Gas Desulfurization Solution

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.884-885.78 ◽

2014 ◽

Vol 884-885 ◽

pp. 78-81

Author(s):

Jian Ming Li ◽

Xiao Long Zhang ◽

Zheng Qiu Qiu ◽

Jian Shan Wang ◽

Yan Li Ren

Keyword(s):

Sulfur Dioxide ◽

Flue Gas ◽

Solution Concentration ◽

Flue Gas Desulfurization ◽

Sintering Machine ◽

Desorption Efficiency ◽

Desorption Capacity

In view of troubles during the operation of desulfurization device for Pangang 260 m2 sintering machine, influence on absorption/desorption capacity of the desulfurization solution was investigated, including concentrations of Na+, SO42- and desulfurization solution. The results showed that it was beneficial for sulfur dioxide (SO2) absorption and there was no significant effect on desorption efficiency, when Na+ and SO42- concentration was lower than 15 g/L and 67 g/L, respectively. When the concentration of desulfurization solution reached 113 g/L, Na+ and SO42-concentrations had no significant effect on absorption/desorption of the desulfurization solution. The results also indicated that desorption was more difficult with higher of the desulfurization solution concentration. The desorption efficiency of 113 g/L desulfurization solution was 10 %-17 % lower than that of 69 g/L desulfurization solution.

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