Exergy Analysis and Evaluation of the Different Flowsheeting Configurations for CO2 Capture Plant Using 2-Amino-2-Methyl-1-Propanol (AMP)

Osagie, Ebuwa; Aliyu, Aliyu M.; Nnabuife, Somtochukwu Godfrey; Omoregbe, Osaze; Etim, V.I.

doi:10.3390/pr7060391

Cited by 7 publications

(4 citation statements)

References 32 publications

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“…A useful approach to assessing a technology under development in terms of its energy efficiency is an exergy analysis [108][109][110]. Such attempts have been made for some CO 2 absorption processes [111,112] and oxy-fuel technologies [113][114][115][116]. The exergy analysis is an effective tool to improve the efficiency of the installation, reduce waste heat, and indicate the possibility of heat integration.…”

Section: Recommendations For Future Researchmentioning

confidence: 99%

Utilization of Gaseous Carbon Dioxide and Industrial Ca-Rich Waste for Calcium Carbonate Precipitation: A Review

Czaplicka

Konopacka-Łyskawa

2020

Energies

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Technologies for the management of various types of waste and the production of useful products from them are currently widely studied. Both carbon dioxide and calcium-rich waste from various production processes are problematic wastes that can be used to produce calcium carbonate. Therefore, the purpose of this paper is to provide an overview about the state of the development of processes that use these two wastes to obtain a valuable CaCO3 powder. The paper reviews the current research on the use of post-distillation liquid from the Solvay process, steelmaking slag, concrete, cement, and gypsum waste as well as some others industrial Ca-rich waste streams in the calcium carbonate precipitation process via carbonation route. This work is an attempt to collect the available information on the possibility of influencing the characteristics of the obtained calcium carbonate. It also indicates the possible limitations and implementation problems of the proposed technologies.

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Section: Recommendations For Future Researchmentioning

confidence: 99%

Utilization of Gaseous Carbon Dioxide and Industrial Ca-Rich Waste for Calcium Carbonate Precipitation: A Review

Czaplicka

Konopacka-Łyskawa

2020

Energies

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“…Osagie et al [5] conducted steady-state simulation and exergy analysis of a 2-amino-2-methyl-1 -propanol (AMP)-based post-combustion capture (PCC) plant. Exergy analysis was able to identify the location, sources of thermodynamic inefficiencies, and magnitude in the thermal system.…”

Section: Overview Of Papers In This Special Issuementioning

confidence: 99%

Gas Capture Processes

et al. 2020

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The increasing trends in gas emissions have had direct adverse impacts on human health and ecological habitats in the world. A variety of technologies have been deployed to mitigate the release of such gases, including CO2, CO, SO2, H2S, NOx and H2. This special issue on gas-capture processes collects 25 review and research papers on the applications of novel techniques, processes, and theories in gas capture and removal.

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“…Por outro lado, Xie et al (2017) e Ferrara et al (2017 reportam que a dessorção é a maior responsável pela destruição de exergia do processo, e reportam uma destruição de exergia 5 vezes superior na coluna de dessorção em comparação à absorção, enquanto no presente trabalho, a absorção estaria destruindo mais exergia do que a dessorção. Estes resultados (presente trabalho) estariam de acordo com o reportado por Osagie et al (2019), que utilizando uma mistura AMP/PZ a absorção é a maior responsável pela destruição de exergia do processo.…”

Section: Cálculo Da Exergia Auxiliada Pelo Aspen Plusunclassified

“…Mostraram que eficiência energética da captura de CO2 baseado em MEA é 88,19 %, superior aos 74,15 % do HBGS, porém a eficiência exergética foi de, respectivamente, 38,32 e 38,85 %. No processo de absorção com MEA, a maior destruição de exergia ocorre na regeneração do solvente, enquanto no processo baseado em hidratos, o processo de refrigeração é o maior responsável pelo consumo total.Destaca-se que os artigos apresentados nesta secção não explicam em detalhes como foi realizado o cálculo da exergia química e os valores de exergia padrão adotados para cada substância química Osagie et al (2019). realizaram a análise exergética de um processo de captura de CO2 utilizando AMP.…”

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Estudo da dessorção de dióxido de carbono em colunas de pratos.

Zanone¹

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The desorption process of carbon dioxide (CO2) in an aqueous solution of monoethanolamine (MEA) in a tray column was studied. The tests were carried out using a 30 % mass aqueous solution of carbonated MEA. The desorber consisted of an 8 cm diameter glass column with 5 trays, each containing a single bubble cap, spaced 6 cm apart and with a 2 cm weir. The reboiler consisted of an electrical glass flask heating mantle, and the condenser was a coil-type heat exchanger using cooling water. The column was instrumented and the temperatures of the reboiler, each tray, and condenser were measured online. Moreover, the concentrations of total CO2 (dissolved CO2, MEACOO -, HCO3and CO3 2-) and total MEA (free MEA, MEAH + , and MEACOO -), determined by potentiometric titration, were measured in the trays and in the reboiler over time.Initially, the desorption process was studied in a semi-batch process under total liquid reflux, with only wet CO2 as an outlet. The temperatures of the five trays were close throughout the test (95 °C to 96 °C). The beginning of the process was characterized by higher desorption of CO2 and evaporation of the solvent. At the end of the process, the two trays closest to the reboiler had a small amount of MEA (< 3 %), and all trays contained water (> 95 %) and CO2.In the continuous operation of the process, the feed was carried out in the second tray from the top and withdrawal in the reboiler, at the average feed rates of 1.26 L/h and 0.55 L/h. Temperatures and total CO2 concentration reached steady state. The first tray and distillate contained mostly water (≳ 98 %) and the remaining trays had a concentration of total MEA and total CO2 lower than the feed, with the total MEA concentration increasing and total CO2 concentration decreasing as they approached the reboiler.The experimental process was simulated using Aspen Plus v10, making it possible to reproduce the same amount of CO2 desorbed and the temperatures, with small deviations, throughout the column and underestimates of CO2 concentrations in the column trays. The effects of different process variables on CO2 desorption were evaluated via simulations. The amount of gas captured was favored by the increase in the number of stages, feeding in stages closest to the top of the column, high pressures, and low reflux ratio. These same variables also contributed to lower specific energy consumption for solvent regeneration, except for the reflux ratio, which increased energy consumption.Exergy analysis of the desorption process was also performed using Aspen Plus to calculate the physical and mixture exergy and a spreadsheet to calculate the chemical exergy of the streams.The desorption column is responsible for more than 35 % of the exergy destroyed in the capture process, and the thermal loads associated with the condenser and reboiler are responsible for about 70 % of this exergy destruction. The trays contribute only 5 % of the total exergy destroyed. The exergy destruction was greater in columns with fewer stages, feeds made at the bottom...

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Exergy Analysis and Evaluation of the Different Flowsheeting Configurations for CO2 Capture Plant Using 2-Amino-2-Methyl-1-Propanol (AMP)

Cited by 7 publications

References 32 publications

Utilization of Gaseous Carbon Dioxide and Industrial Ca-Rich Waste for Calcium Carbonate Precipitation: A Review

Utilization of Gaseous Carbon Dioxide and Industrial Ca-Rich Waste for Calcium Carbonate Precipitation: A Review

Gas Capture Processes

Estudo da dessorção de dióxido de carbono em colunas de pratos.

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