Process Modeling and Techno-Economic Analysis of a CO<sub>2</sub> Capture Process Using Fixed Bed Reactors with a Microencapsulated Solvent

Kotamreddy, Goutham; Hughes, Ryan; Bhattacharyya, Debangsu; Stolaroff, Joshuah K.; Hornbostel, Katherine; Matuszewski, Michael; Omell, Benjamin

doi:10.1021/acs.energyfuels.9b01255

Cited by 17 publications

(9 citation statements)

References 32 publications

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“…CTP and CL are the tube count calculation constant and the tube layout constant, respectively; for one tube pass, CTP = 0.93 and CL = 0.87 for 30 and 60 equilateral tri pitch. Similar configurations can be found in the modeling studies performed by Kim et al 25 and Kotamreddy et al 26 The heat transfer coefficient between the gas phase and the embedded heat exchanger (h HX ) was calculated using correlations from Penny et al 27…”

Section: Embedded Heat Exchangermentioning

confidence: 89%

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Isotherm, Kinetic, Process Modeling, and Techno-Economic Analysis of a Diamine-Appended Metal–Organic Framework for CO₂ Capture Using Fixed Bed Contactors

et al. 2021

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Diamine-appended metal-organic frameworks exhibiting step-shaped CO2 adsorption are exceptional candidates for energy-efficient carbon capture. However, there are few studies examining their performance in real-world capture scenarios, in part due to the challenge inherent in modeling their CO2 uptake behavior. Here, we develop a dual-site Sips model to fit experimental CO2 adsorption data for dmpn-Mg2(dobpdc) (dmpn = 2,2-dimethyl-1,3-diaminopropane; dobpdc 4-= 4,4′-dioxidobiphenyl-3,3′-dicarboxylate) and develop a linear driving force model for the adsorption kinetics based on available experimental data. These models are used to develop a dynamic, fixed bed, non-isothermal contactor model using shaped particles of the material, which is validated with experimental breakthrough data. We also examine the effects of the high heat of adsorption of the material on CO2 uptake performance and find that heat removal is essential to maximize capture performance. We finally investigate "basic" (no bed cooling during adsorption) and "modified" (bed cooling during adsorption) temperature swing adsorption (TSA) processes using dmpn-Mg2(dobpdc) and their process economics are compared to a state-of-the-art monoethanolamine (MEA) capture system, with and without heat recovery. In the absence of heat recovery, the adsorbent systems are more costly than established technology. However, with 85% heat recovery, both adsorbent-based TSA processes are projected to cost less than the MEA system. This work highlights that thermal management is vital for implementation of dmpn-Mg2(dobpdc) as a viable CO2 capture technology. Investigation of other contactor technologies that can provide unique ways to manage system heat represent promising future areas of study.

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Section: Embedded Heat Exchangermentioning

confidence: 89%

“…Heat exchanger design variables (d t and P t ) are similar to the literature and result in a specific heat exchange area of 53 m 2 /m 3 , which is similar to other studies found in the literature. 26 2.4. Postcombustion CO 2 Capture Process Configuration.…”

Section: { Z Z Z Z Z Zmentioning

confidence: 99%

Isotherm, Kinetic, Process Modeling, and Techno-Economic Analysis of a Diamine-Appended Metal–Organic Framework for CO₂ Capture Using Fixed Bed Contactors

et al. 2021

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“…In this study, the breakthrough concentration is assumed to be 10% of the inlet concentration. The breakthrough time is defined as The distribution of the breakthrough times for the PUQ and PUQwD cases are represented by their probability density estimates shown in Figure .…”

Section: Resultsmentioning

confidence: 99%

Probabilistic Model Building with Uncertainty Quantification and Propagation for a Dynamic Fixed Bed CO₂Capture Process

et al. 2019

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Postcombustion CO 2 capture technologies need to undergo several costly scale-up stages before their deployment to the industry. Rigorous process models with uncertainty quantification generate more informative simulations that can offer increased design confidence, and a measure of the technical risk the modeled system carries, enabling the effective development of fewer prototypes during scale-up. To assist the development and scale-up of fixed bed CO 2 adsorption technologies, we propose a framework for the quantification of uncertainty applied to the process of CO 2 adsorption using zeolite 13X. Two major sources of uncertainty are considered at the small, laboratory scale in the Langmuir adsorption model: parameter uncertainty and model-form discrepancy. First, the parameter uncertainty is quantified and analyzed, followed by the quantification and analysis of the parameter uncertainty and model-form discrepancy together. The uncertainty is quantified via Bayesian statistical calibration of the Langmuir isotherm model to experimental adsorption isotherm data. Orthogonal discrepancy terms are added to the Langmuir model, leading to a discrepancy-augmented sorbent model that adjusts for physical and chemical deficiencies of the pure Langmuir model (e.g., accounting for adsorption of multiple species on multiple sites instead of the assumed monolayer homogeneous adsorption). Modelform discrepancy is also caused by the deviation of the sorbent model from reality across scales; therefore, its inclusion in the adsorption model developed using data from the small-scale system improves inference and process model predictions at the large, fixed bed process scale. To study the propagation of the small-scale uncertainty to process scale, a rigorous one-dimensional dynamic, nonisothermal mathematical model of a fixed bed adsorber is developed. Both the parameter and model-form uncertainties are propagated through the adsorber model to evaluate the resulting uncertainty in key performance measures such as the breakthrough time. Results show that, if only parameter uncertainty is considered, it can lead to a highly conservative design of the adsorber resulting in higher capital investment. A third source of uncertainty, boundary data variability, is also studied at the process scale by means of sensitivity analysis: the effect of changes in the reactor inlet gas composition, flow rate, and temperature are examined.

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“…The feed stream (1) to the carbon capture cycle is assumed to be products of a complete combustion reaction of 1 mol/s of methane, containing 7.52 mol/s N 2 , 2 mol/s H 2 O, and 1 mol/s CO 2 . This flow combination has been addressed in several studies in evaluating a carbon capture cycle 42 or the input stream as a whole is comprised of N 2 , CO 2 , and H 2 O with different mole fractions 6 . Thence, the presence of NO x and other pollutants is ignored in the input stream.…”

Section: System Description and Methodologymentioning

confidence: 99%

Integrated thermochemical Mg‐Cl‐Na hydrogen production cycle, carbon dioxide capture, ammonia production, and methanation

2021

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Summary The surge in greenhouse gases and concerns regarding global warming is at the focal attention in today's environmental issues. Many solutions are put through to counter this, toward which carbon dioxide‐capturing methods are promising in reducing the carbon footprint. It is commonly agreed that carbon capture is a leap forward in eliciting vast cuts in greenhouse gas emissions and at the same time still utilizing fossil fuels with the conventional energy infrastructure. This study proposes a novel integrated carbon‐capturing system for flue gases emitted from industrial sources, with a thermochemical Mg‐Cl‐Na cycle as the driving force, coupled with ammonia and methanation production units, as reliable energy carriers. The proposed system is thermodynamically analyzed and a sensitivity and exergy analysis is implemented. The proposed system feeds on 1244 kg/h of flue gasses, which is converted to 7.2 kg/h of ammonia and 20.37 kg/h of methane. The sensitivity analysis is implemented so as to attain the effect of conversion factor on rates of production, endothermic, and exothermic reaction heat duties, and CO2 absorption. Further, the results indicated energy and exergy efficiency of 16.9% and 33.7% for the system, respectively. Highlights A novel carbon capture cycle integrated system with thermochemical Mg‐Cl‐Na impetus is proposed Ammonia and methanation production units are inaugurated as reliable hydrogen carriers Thermodynamic analysis corroborated a 16.9% efficiency for the proposed integrated system Exergy analysis indicated a 33.7% exergy efficiency for the integrated systems, underscoring the precipitation reactor of having the largest share of total exergy destruction

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Process Modeling and Techno-Economic Analysis of a CO₂ Capture Process Using Fixed Bed Reactors with a Microencapsulated Solvent

Cited by 17 publications

References 32 publications

Isotherm, Kinetic, Process Modeling, and Techno-Economic Analysis of a Diamine-Appended Metal–Organic Framework for CO₂ Capture Using Fixed Bed Contactors

Isotherm, Kinetic, Process Modeling, and Techno-Economic Analysis of a Diamine-Appended Metal–Organic Framework for CO₂ Capture Using Fixed Bed Contactors

Probabilistic Model Building with Uncertainty Quantification and Propagation for a Dynamic Fixed Bed CO₂Capture Process

Integrated thermochemical Mg‐Cl‐Na hydrogen production cycle, carbon dioxide capture, ammonia production, and methanation

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Process Modeling and Techno-Economic Analysis of a CO2 Capture Process Using Fixed Bed Reactors with a Microencapsulated Solvent

Cited by 17 publications

References 32 publications

Isotherm, Kinetic, Process Modeling, and Techno-Economic Analysis of a Diamine-Appended Metal–Organic Framework for CO2 Capture Using Fixed Bed Contactors

Isotherm, Kinetic, Process Modeling, and Techno-Economic Analysis of a Diamine-Appended Metal–Organic Framework for CO2 Capture Using Fixed Bed Contactors

Probabilistic Model Building with Uncertainty Quantification and Propagation for a Dynamic Fixed Bed CO2Capture Process

Integrated thermochemical Mg‐Cl‐Na hydrogen production cycle, carbon dioxide capture, ammonia production, and methanation

Contact Info

Product

Resources

About

Process Modeling and Techno-Economic Analysis of a CO₂ Capture Process Using Fixed Bed Reactors with a Microencapsulated Solvent

Isotherm, Kinetic, Process Modeling, and Techno-Economic Analysis of a Diamine-Appended Metal–Organic Framework for CO₂ Capture Using Fixed Bed Contactors

Isotherm, Kinetic, Process Modeling, and Techno-Economic Analysis of a Diamine-Appended Metal–Organic Framework for CO₂ Capture Using Fixed Bed Contactors

Probabilistic Model Building with Uncertainty Quantification and Propagation for a Dynamic Fixed Bed CO₂Capture Process