Process flowsheet design optimization for various amine-based solvents in post-combustion CO2 capture plants

Damartzis, Theodoros; Παπαδόπουλος, Αθανάσιος Ι.; Seferlis, Panos

doi:10.1016/j.jclepro.2015.04.129

Cited by 61 publications

(26 citation statements)

References 27 publications

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“…Both the results for the bituminous-coal-fired power plant and for the natural-gas fired power plant are comparable to those published by Damartzis et al (2016). They reported even a more significant reduction in the reboiler duty of up to 55%, yet by using a simultaneous flow sheet optimisation.…”

Section: Results For the Bituminous-coal-fired Power Plantsupporting

confidence: 80%

“…As an example solvent, a sterically hindered amine 2-amino-2-methylpropanol (AMP) is applied. This amine has a lower reactivity and a higher price than MEA; nevertheless, it has recently received a promising evaluation (Aboudheir et al, 2006, Damartzis et al, 2016. The main advantages of AMP are a high CO 2 -loading capacity (Aroonwilas et al, 1997), a low heat of absorption (Arcis et al, 2007) and a low affinity to degradation and corrosion (Aroonwilas et al, 2004).…”

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confidence: 99%

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A comparative study of different amine-based solvents for CO2-capture using the rate-based approach

Hüser

Schmitz

Kenig

2017

Chemical Engineering Science

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Section: Results For the Bituminous-coal-fired Power Plantsupporting

confidence: 80%

mentioning

confidence: 99%

A comparative study of different amine-based solvents for CO2-capture using the rate-based approach

Hüser

Schmitz

Kenig

2017

Chemical Engineering Science

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“…Another parameter which contributes to operational costs is the solvent used for capturing CO 2 . As already indicated, MEA is the most widely used solvent, but it has a number of drawbacks such as high reboiler duty, low absorption capacity, poor thermal stability and high corrosivity . These issues lead to high energy penalties and capture plant OPEX.…”

Section: Post‐combustion Co2 Capture In Gas‐fired Systemsmentioning

confidence: 99%

“…As already indicated, MEA is the most widely used solvent, but it has a number of drawbacks such as high reboiler duty, low absorption capacity, poor thermal stability and high corrosivity. 101 These issues lead to high energy penalties and capture plant OPEX. Values of reboiler duty using MEA vary considerably depending upon the estimation methodologies and optimization strategies employed, but are typically between 3.5 and 4 MJ/kg CO 2 for optimized systems.…”

Section: Novel Solventsmentioning

confidence: 99%

Making gas‐CCS a commercial reality: The challenges of scaling up

et al. 2017

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Significant reductions in CO 2 emissions are required to limit the global temperature rise to 2°C. Carbon capture and storage (CCS) is a key enabling technology that can be applied to power generation and industrial processes to lower their carbon intensity. There are, however, several challenges that such a method of decarbonization poses when used in the context of natural gas (gas-CCS), especially for solvent-based (predominantly amines) post-combustion capture. These are related to: (i) the low CO 2 partial pressure of the exhaust gases from gas-fired power plants (ß3-4%vol. CO 2 ), which substantially limits the driving force for the capture process; (ii) their high O 2 concentration (ß12-13%vol. O 2 ), which can degrade the capture media via oxidative solvent degradation; and (iii) their high volumetric flow rates, which means large capture plants are needed. Such post-combustion gas-CCS features unavoidably lead to increased CO 2 capture costs. This perspective aims to summarize the key technologies used to overcome these as a priority, including supplementary firing, humidified systems, exhaust gas recirculation and selective exhaust gas recirculation. These focus on the maximum CO 2 levels achievable for each, as well as the electrical efficiencies attainable when the capture penalty is taken into account. Oxy-turbine cycles are also discussed as an alternative to post-combustion gas-CCS, indicating the main advantages and limitations of these systems together with the expected electrical efficiencies. Furthermore, we consider the challenges for scaling-up and deployment of these technologies at a commercial level to enable gas-CCS to play a crucial role in a low-carbon future. C

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“…[5][6][7] Subsequently, potential flowsheet configurations are defined and each candidate molecule is assessed by process optimization for each preselected flowsheet configuration. [8][9][10][11] However, the separation of molecule selection, flowsheet selection, and process optimization may lead to suboptimal solutions if the preselection of the molecules or flowsheet configurations fails.…”

Section: Introductionmentioning

confidence: 99%

Integrating superstructure‐based design of molecules, processes, and flowsheets

2020

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The key to many chemical and energy conversion processes is the choice of the right molecule, for example, used as working fluid. However, the choice of the molecule is inherently coupled to the choice of the right process flowsheet. In this work, we integrate superstructure‐based flowsheet design into the design of processes and molecules. The thermodynamic properties of the molecule are modeled by the PC‐SAFT equation of state. Computer‐aided molecular design enables considering the molecular structure as degree of freedom in the process optimization. To consider the process flowsheet as additional degree of freedom, a superstructure of the process is used. The method results in the optimal molecule, process, and flowsheet. We demonstrate the method for the design of an organic Rankine cycle considering flowsheet options for regeneration, reheating, and turbine bleeding. The presented method provides a user‐friendly tool to solve the integrated design problem of processes, molecules, and process flowsheets.

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Process flowsheet design optimization for various amine-based solvents in post-combustion CO2 capture plants

Cited by 61 publications

References 27 publications

A comparative study of different amine-based solvents for CO2-capture using the rate-based approach

A comparative study of different amine-based solvents for CO2-capture using the rate-based approach

Making gas‐CCS a commercial reality: The challenges of scaling up

Integrating superstructure‐based design of molecules, processes, and flowsheets

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