Pressure modification index based on hydrodynamics and mass transfer effects for modeling of CO 2 removal from natural gas via absorption at high pressures

Isa, Faezah; Zabiri, Haslinda; Ramasamy, M.; Tufa, Lemma Dendena; Shariff, Azmi Mohd; Saleh, Shanti Faridah

doi:10.1016/j.ijggc.2016.11.024

Cited by 6 publications

(2 citation statements)

References 40 publications

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“…At high pressure, the correction factor is added apparently to only address the impact of high pressure on the gas−liquid effective area. Isa et al 26 proposed a model principally based on Pandya's approach. A correction factor in terms of a pressure modification index is included in the model to counter high-pressure nonidealities.…”

Section: Introductionmentioning

confidence: 99%

“…A few modeling studies are reported at high-pressure CO 2 absorption for natural gas processing. − For the aqueous MEA–CO 2 system, Tan et al developed an integrated mathematical model by combining steady-state gas and one-dimensional unsteady-state liquid flow rates. The model included the mass transfer resistances along with enhancement factor calculations limited to 0.5 mol/mol loadings only.…”

Section: Introductionmentioning

confidence: 99%

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Rate-Based Modeling for Packed Absorption Column of the MEA–CO₂–Water System at High-Pressure and High-CO₂ Loading Conditions

Shahid

Maulud

Bustam

et al. 2019

Ind. Eng. Chem. Res.

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Pandya proposed the first steady-state rate-based model for the chemical absorption process in a packed column using the aqueous CO 2 −MEA system. Later several modeling studies are also reported based on Pandya's approach but limited to low pressure (≈1 bar) and low CO 2 loadings (<0.5 mol/mol). Recently, the interest in processing CO 2 -rich natural gas at high-pressure conditions has been increased. Therefore, in this study, the Pandya model is modified to simulate the packed absorption column using an aqueous CO 2 −MEA system for the high-pressure and high-CO 2 loading range. The sequential chemical reactions, along with the respective mass transfer resistances that occur at low (<0.5 mol/mol) and high (>0.5 mol/mol) CO 2 loadings, are added. This is achieved by theoretically segmenting the packed column into two sections. This strategy simplifies the computation of subsequent fast and slow reaction regimes that occur over a high-CO 2 loading range. The gas−liquid nonideal behavior is described using the Peng−Robinson (EOS) and Kent Eisenberg models. The developed model is effectively validated using the experimental data at low-(≈1.03 bar) and high-(50 bar) pressure conditions over a wide CO 2 loading range (≈0−1.0 mol/mol). In a parity plot between measured and simulated CO 2 concentration, R 2 is found to be 0.99 and 0.97, respectively, for the low-(≈1.03 bar) and high-(50 bar) pressure systems. This indicates that the proposed model can accurately predict the critical design parameters at the high-pressure and high-CO 2 loading conditions, with minimum computational intricacy.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Rate-Based Modeling for Packed Absorption Column of the MEA–CO₂–Water System at High-Pressure and High-CO₂ Loading Conditions

Shahid

Maulud

Bustam

et al. 2019

Ind. Eng. Chem. Res.

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Post‐combustion CO₂ capture with chemical absorption and hybrid system: current status and challenges

et al. 2018

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Post-combustion CO 2 capture from the power and industrial sectors has gained widespread attention due to its ability to retrofit easily with newly installed and existing plants. This state-of-the-art, updated review provides an overview of technical issues in post-combustion CO 2 capture related to process performance, energy requirements for CO 2 capture, and inconsistencies in the prediction of CO 2 capture cost. Recent updates are presented regarding chemical absorption-desorption systems, and particularly CO 2 absorption and solubility enhancement studies, absorber operation at elevated pressure, recent developments in absorber configuration, and methods for reducing the heat duty of strippers. Furthermore, recently developed post-combustion hybrid techniques such as the membrane-absorbent hybrid process, the membrane-cryogenic hybrid process, the membrane-adsorption hybrid process, the absorption-electrolysis hybrid process, and the solar thermal electrochemical process (STEP) are discussed. Finally, we suggest areas for improvement and indicate that there are significant future prospects for post-combustion CO 2 capture. C

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Dynamic modelling, simulation and basic control of CO2 absorption based on high pressure pilot plant for natural gas treatment

Salvinder

Zabiri

Isa

et al. 2018

International Journal of Greenhouse Gas Control

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Pressure modification index based on hydrodynamics and mass transfer effects for modeling of CO 2 removal from natural gas via absorption at high pressures

Cited by 6 publications

References 40 publications

Rate-Based Modeling for Packed Absorption Column of the MEA–CO₂–Water System at High-Pressure and High-CO₂ Loading Conditions

Rate-Based Modeling for Packed Absorption Column of the MEA–CO₂–Water System at High-Pressure and High-CO₂ Loading Conditions

Post‐combustion CO₂ capture with chemical absorption and hybrid system: current status and challenges

Dynamic modelling, simulation and basic control of CO2 absorption based on high pressure pilot plant for natural gas treatment

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Pressure modification index based on hydrodynamics and mass transfer effects for modeling of CO 2 removal from natural gas via absorption at high pressures

Cited by 6 publications

References 40 publications

Rate-Based Modeling for Packed Absorption Column of the MEA–CO2–Water System at High-Pressure and High-CO2 Loading Conditions

Rate-Based Modeling for Packed Absorption Column of the MEA–CO2–Water System at High-Pressure and High-CO2 Loading Conditions

Post‐combustion CO2 capture with chemical absorption and hybrid system: current status and challenges

Dynamic modelling, simulation and basic control of CO2 absorption based on high pressure pilot plant for natural gas treatment

Contact Info

Product

Resources

About

Rate-Based Modeling for Packed Absorption Column of the MEA–CO₂–Water System at High-Pressure and High-CO₂ Loading Conditions

Rate-Based Modeling for Packed Absorption Column of the MEA–CO₂–Water System at High-Pressure and High-CO₂ Loading Conditions

Post‐combustion CO₂ capture with chemical absorption and hybrid system: current status and challenges