An extractive distillation technique for producing CO2 enriched injection gas in enhanced oil recovery (EOR) fields

ZareNezhad, Bahman; Hosseinpour, Negahdar

doi:10.1016/j.enconman.2009.02.016

Cited by 27 publications

(26 citation statements)

References 3 publications

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“…4 Smaller scale CO 2 capture is required in ventilation systems of space ships, submarines and other spaces with no access to oxygen. In 2007, almost 90% of the global energy consumption was met by the combustion of fossil fuel with petroleum continuing to be the world's most important single primary energy source.…”

Section: Introductionmentioning

confidence: 99%

Effect of pore size on carbon dioxide sorption by carbide derived carbon

Presser

McDonough

Yeon

et al. 2011

Energy Environ. Sci.

587

475

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CO 2 sorption at atmospheric and sub-atmospheric pressures is a key step towards carbon capture and sequestration (CCS) and materials capable of fast and efficient CO 2 uptake are currently being studied extensively. Carbide-derived carbons (CDCs) show a very high sorption capacity for CO 2 of up to 7.1 mol/kg at 0 C and ambient pressure. This value is significantly higher than other carbon materials. Systematic experimental investigation of a large number of different CDCs derived from nano-and micrometer sized precursors with and without activation show a linear correlation between the CO 2 uptake at a certain pressure and the pore volume. However, CO 2 sorption is not limited by the total pore volume but only by pores smaller than a certain diameter. At 1 bar, pores smaller than 0.8 nm contribute the most to the CO 2 uptake and at 0.1 bar pores smaller or equal to 0.5 nm are preferred. With lower total pressure, smaller pores contribute more to the measured amount of adsorbed CO 2 . The prediction of the CO 2 uptake based on the pore volume for pores of a certain diameter is much more accurate than predictions based on the mean pore size or the specific surface area. This study provides guidelines for the design of materials with an improved ability to remove carbon dioxide from the environment at atmospheric and lower pressures.

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Section: Introductionmentioning

confidence: 99%

Effect of pore size on carbon dioxide sorption by carbide derived carbon

Presser

McDonough

Yeon

et al. 2011

Energy Environ. Sci.

587

475

View full text Add to dashboard Cite

show abstract

“…Moreover, CO 2 and ethane molecules have a strong repulsive force against each other, forming the lowest‐boiling‐point azeotrope, therefore, it is complicated to separate CO 2 from hydrocarbon in natural gas 11, 12. Many researchers reported on breaking the CO 2 ‐C 2 H 6 azeotrope to achieve removal of CO 2 from natural gas 13–23.…”

Section: Introductionmentioning

confidence: 99%

“…Low‐temperature extractive distillation is one of the most common thermal separation techniques. Using Newton‐Laffson's method, ZareNezhad and Hosseinpour 22 simultaneously solved different equations, including overall material balance, compositional material balance, phase balance, enthalpy balance, and performance indexes, to produce a CO 2 ‐enriched injection gas with a CO 2 purity of 96 % and high‐quality C 2 /C 3 and C 4 byproducts. Lastari et al 15 used ethane homologues as a solvent to study the minimum amount of solvent required for pure and mixed solvent and found the optimal ratio of mixed solvent with energy consumption through the method of isomorphism.…”

Section: Introductionmentioning

confidence: 99%

Selection of State Equation and Innovative Process Design for Removing CO₂ by Azeotropic Distillation

Wang

Zhang

Fan³

et al. 2021

Chem Eng & Technol

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A thermodynamic consistency test was performed on the gas‐liquid equilibrium data of three binary mixtures, namely, CH4‐C2H6, CH4‐CO2, and C2H6‐CO2, measured by Wei and Brown at three different temperatures to verify the reliability of the data. Peng‐Robinson (PR), Redlich‐Kwong (RK), and Soave‐Redlich‐Kwong (SRK) equations of state combined with Margles mixing rules were used to fit the gas‐liquid equilibrium data of these three models. The results indicate that the PR‐Margles mixed model can make the average absolute deviation of test data and calculated data pressure and vapor fraction less than 0.19 and 0.0025, respectively, which is superior to RK‐Margles and SRK‐Margles mixed models. Finally, an azeotropic distillation method with C2H6 as entrainer for removing CO2 from natural gas was explored and optimized.

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“…Ordinary distillation cannot be utilized directly to separate azeotropes due to the absence of an interphase compositional differential. Several special distillation methods including azeotropic distillation, [1][2][3] extractive distillation, 4,5 and pressure swing distillation 6 have been used for the azeotrope separation. Understanding of the azeotropic properties including the boiling point is important for preliminary evaluations aimed at designing of the distillation process.…”

Section: Introductionmentioning

confidence: 99%

New structure-based models for the prediction of normal boiling point temperature of ternary azeotropes

Faramarzi

Abbasitabar

Jahromi

et al. 2021

JSCS

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Recently, development of the QSPR models for mixtures has received much attention. The QSPR modeling of mixtures requires the use of appropriate mixture descriptors. In this study, 12 mathematical equations were considered to compute mixture descriptors from the individual components for the prediction of normal boiling points of 78 ternary azeotropic mixtures. Multiple linear regression (MLR) was employed to build all QSPR models. Memorized_ACO algorithm was employed for subset variable selection. An ensemble model was also constructed using averaging strategy to improve the predictability of the final QSAR model. The models have been validated by a test set comprised of 24 ternary azeotropes and by different statistical tests. The resulted ensemble QSPR model had R2training, R2test, and q2 of 0.97, 0.95, and 0.96, respectively. Mean absolute error (MAE) as a good indicator of model performance were found to be 3.06 and 3.52 for training and testing sets, respectively.

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An extractive distillation technique for producing CO2 enriched injection gas in enhanced oil recovery (EOR) fields

Cited by 27 publications

References 3 publications

Effect of pore size on carbon dioxide sorption by carbide derived carbon

Effect of pore size on carbon dioxide sorption by carbide derived carbon

Selection of State Equation and Innovative Process Design for Removing CO₂ by Azeotropic Distillation

New structure-based models for the prediction of normal boiling point temperature of ternary azeotropes

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An extractive distillation technique for producing CO2 enriched injection gas in enhanced oil recovery (EOR) fields

Cited by 27 publications

References 3 publications

Effect of pore size on carbon dioxide sorption by carbide derived carbon

Effect of pore size on carbon dioxide sorption by carbide derived carbon

Selection of State Equation and Innovative Process Design for Removing CO2 by Azeotropic Distillation

New structure-based models for the prediction of normal boiling point temperature of ternary azeotropes

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Product

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Selection of State Equation and Innovative Process Design for Removing CO₂ by Azeotropic Distillation