Dynamic modelling and validation of pre-combustion CO2 absorption based on a pilot plant at the Buggenum IGCC power station

Trapp, Carsten; Servi, Carlo De; Casella, Francesco; Bardow, André; Colonna, Piero

doi:10.1016/j.ijggc.2015.02.005

Cited by 19 publications

(8 citation statements)

References 34 publications

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“…As shown in Supplementary Figure S4, compared with the equilibrium model, the CO 2 recoveries simulated at different L/G ratios with the Bravo et al (1985) and Billet and Schultes (1993) correlations are very similar, with an average difference of only 0.2%. This result is consistent with the results reported in the paper by Trapp et al (2015), who performed a similar equilibrium and rate-based modelling step. It is found that the performance with the Hanley and Chen (2012) correlation for L/G ratios above 11 deviates slightly from the other two models.…”

Section: Rate-based Model Descriptionsupporting

confidence: 93%

Process Simulation and Economic Analysis of Pre-combustion CO2 Capture With Deep Eutectic Solvents

et al. 2020

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The purpose of this paper is to identify firstly the most important solvent characteristics in the CO2 capture process and secondly to determine how they contribute to the total cost of CO2 separation and analyze the economic feasibility of current deep eutectic solvents (DESs) in literature. A rate-based modeling approach was adopted to simulate pre-combustion CO2 capture. The effects of the flow model and the number of segments were investigated for the Selexol process. Different mass transfer correlations due to Bravo et al. (1985), Billet and Schultes (1993) and Hanley and Chen (2012) were adopted for the rate-based models and compared with the equilibrium modelling approach. Subsequently, property and process models were developed for a mixture of decanoic acid and menthol, in equal quantities. A physical property study was conducted with this DES. The CO2 solubility is found to be very important in all rate-based models, as expected, but properties such as the surface tension, thermal conductivity, heat capacity and volatility had a minor influence on the absorption performance. The solvent viscosity strongly affects the mass transfer rate when using the Hanley and Chen (2012) correlations, whereas it plays only a small role in the other two sets of correlations. Using a high CO2 solubility as criterion, two mixtures of allyl triphenylphosphonium bromide (ATPPB) and diethylene glycol (DEG) were screened out from literature. The conventional Selexol process was set as the benchmark for the evaluation of the performances of these DESs. The optimum capture cost for Selexol process is 27.22, 26.66 and 30.84 $2018/tonne CO2 for the adopted correlations, respectively. When employing two of the three studied mass transfer correlations, the estimated process costs for a capture process using this DES can be similar to the costs of the Selexol process. However, when the liquid viscosity strongly affects the mass transfer rate, as is the case when using the Hanley and Chen (2012) correlations, the Selexol process remains more economical. This strongly indicates the need for further experimental and modelling studies on mass transfer rates in absorption columns (with higher viscosity liquids) to help directing the development of suitable DESs for pre-combustion CO2 capture.

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Section: Rate-based Model Descriptionsupporting

confidence: 93%

Process Simulation and Economic Analysis of Pre-combustion CO2 Capture With Deep Eutectic Solvents

et al. 2020

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“…While several technologies for CCP have been proposed, oxy-fuel, precombustion, postcombustion, and chemical looping are thought to be the more attractive technologies for commercial deployment. In the oxy-fuel technology, the fuel is burned in denitrified air, that is, oxygen, to produce CO 2 and water. − In precombustion, the coal is chemically broken to produce syngas, the CO 2 is removed from syngas, whereas hydrogen is used for power production. − In the case of postcombustion, the fuel is burned and CO 2 from the combustion process is recovered, commonly by scrubbing using solvents. − In chemical looping technology, calcium oxide (CaO) and CO 2 are reversibly reacted to form calcium carbonate (CaCO 3 ). This process is analogous to the conventional amine-based absorption process since the CO 2 capture occurs in one vessel, then the sorbent material (CaCO 3 ) is sent to a second vessel where the sorbent material is regenerated producing an almost pure stream of CO 2 . − …”

Section: Introductionmentioning

confidence: 99%

Technoeconomic and Dynamical Analysis of a CO₂ Capture Pilot-Scale Plant Using Ionic Liquids

Valencia-Marquez

Flores‐Tlacuahuac

Ricardez‐Sandoval

2015

Ind. Eng. Chem. Res.

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Carbon capture has been recognized as an attractive alternative to reduce CO2 emissions. The most feasible technology that can be developed at a commercial-scale in a short-term period is CO2 capture by absorption since it is an end-pipe technology that can be installed in existing coal-based power plants and will not require retrofit of the power plant. The most studied CO2 capture process is absorption using monoethanolamine (MEA) and represents the benchmark solvent because of the favorable properties it has shown such as fast kinetics, high absorption capacity, good solubility in water, and low price. On the other hand, this solvent is susceptible to thermal and chemical degradation, and it is also corrosive. Nevertheless, the main drawback of this solvent is the energy consumption needed for solvent recovery (almost >90% of the plant’s operating cost). Ionic liquids (IL) are new alternative solvents for CO2 capture. Experimental results have shown that IL feature chemical and thermal stability, and good CO2 absorption capacity. In this work, a theoretical IL is used as physical solvent for developing a new flow-sheet of a CO2 capture plant. A techno-economic analysis was carried out to evaluate the feasibility of the proposed design. The results show that the IL-based plant features lower energy demand compared to a traditional MEA-based plant. Moreover, the dynamic analysis performed in this study provides insight on the degree of nonlinearity and the dynamics of the process, which are essential tools to design suitable control schemes. The results show that the plant can accommodate perturbations in the flue gas flow rate up to ±10% while meeting CO2 recovery and purity targets.

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“…Transient simulation and control of a physisorption-based pre-combustion CO 2 capture system has been performed using distributed PI control [220,236]. Precombustion CO 2 capture via membrane separation has also been studied using nonlinear MPC [237] and a combination of MPC and PI control [238].…”

Section: Co 2 Capture and Sequestrationmentioning

confidence: 99%

“…In these studies, the dynamic models used are often validated using steady state experimental data, and relatively few authors have compared their models to transient experimental data [219,236]. As one can see, the vast majority of studies on control of CO 2 capture systems has focused on amine-based postcombustion capture.…”

Section: Co 2 Capture and Sequestrationmentioning

confidence: 99%

Sustainability and process control: A survey and perspective

Daoutidis

Zachar

Jogwar

2016

Journal of Process Control

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Dynamic modelling and validation of pre-combustion CO2 absorption based on a pilot plant at the Buggenum IGCC power station

Cited by 19 publications

References 34 publications

Process Simulation and Economic Analysis of Pre-combustion CO2 Capture With Deep Eutectic Solvents

Process Simulation and Economic Analysis of Pre-combustion CO2 Capture With Deep Eutectic Solvents

Technoeconomic and Dynamical Analysis of a CO₂ Capture Pilot-Scale Plant Using Ionic Liquids

Sustainability and process control: A survey and perspective

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Dynamic modelling and validation of pre-combustion CO2 absorption based on a pilot plant at the Buggenum IGCC power station

Cited by 19 publications

References 34 publications

Process Simulation and Economic Analysis of Pre-combustion CO2 Capture With Deep Eutectic Solvents

Process Simulation and Economic Analysis of Pre-combustion CO2 Capture With Deep Eutectic Solvents

Technoeconomic and Dynamical Analysis of a CO2 Capture Pilot-Scale Plant Using Ionic Liquids

Sustainability and process control: A survey and perspective

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Product

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Technoeconomic and Dynamical Analysis of a CO₂ Capture Pilot-Scale Plant Using Ionic Liquids