Non-isothermal Adsorption of Nitrogen-carbon Dioxide Mixture in a Fixed Bed of Zeolite-X.

Kim, Jong‐Nam; Chue, Kuck-Tack; Kim, Kwon-Il; Cho, Soon‐Haeng; Kim, Jong-Duk

doi:10.1252/jcej.27.45

Cited by 32 publications

(15 citation statements)

References 26 publications

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“…The adsorption capacity at 0.15 bar is about 3 mol/kg [13], which is comparable to the best amine-based solid sorbents. The CO 2 /N 2 selectivity of NaX is also extremely high, above 100 [14]. Similar results are obtained for zeolite 5A [15].…”

Section: Introductionsupporting

confidence: 83%

Post-Combustion CO₂Capture by Vacuum Swing Adsorption Using Zeolites – a Feasibility Study

Pirngruber

Carlier

Leinekugel‐le‐Cocq

2013

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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Résumé -Captage du CO 2 en postcombustion par adsorption modulée en pression avec désorption sous vide sur zéolithes -étude de faisabilité -Les résultats de simulation issus de la littérature suggèrent que les procédés d'adsorption modulée en pression avec désorption sous vide (Vacuum Swing Absorption, VSA) employant un physisorbant sont nettement moins efficaces d'un point de vue énergétique que le procédé de référence de captage de CO 2 par absorption aux amines. La plupart des études considèrent la zéolithe NaX comme adsorbant. La NaX présente une très forte affinité pour le CO 2 , mais elle est difficile à régénérer et est très sensible à la présence d'eau dans les fumées. Jouer sur la polarité de l'adsorbant doit permettre de trouver un meilleur compromis entre capacité d'adsorption, caractère régénérable et sensibilité à l'eau. C'est pourquoi, dans cette contribution, nous avons testé une série de zéolithes afin d'évaluer leur performances comme physisorbants dans un procédé de captage de CO 2 par VSA. Les adsorbants sont testés par adsorption de fumées modèles séches et humides sur un lit d'adsorbant, en perçage et en conditions cycliques. Le matériau le plus intéressant, la zéolithe EMC-1, est choisi pour la simulation d'un cycle VSA complet, en comparaison avec la NaX. Les deux adsorbants atteignent les objectifs en termes de rendement (> 90 %) et de pureté du CO 2 (> 95 %), mais le très faible niveau de pression nécessaire à la régénération de l'adsorbant sera un handicap de poids pour l'utilisation de cette technologie à grande échelle. Abstract

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Section: Introductionsupporting

confidence: 83%

Post-Combustion CO₂Capture by Vacuum Swing Adsorption Using Zeolites – a Feasibility Study

Pirngruber

Carlier

Leinekugel‐le‐Cocq

2013

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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“…16,21,[23][24][25] Although the heat released in a adsorption process is expected to be small in bench-scale experiments, 17 heat management in such TSA processes has to be addressed in practical, large-scale applications. [26][27][28][29][30] Only few studies 17,[26][27][28][30][31][32][33][34][35][36][37] have investigated the role of heat effects on the adsorption performance of solid sorbents. Moreover, considering the substantial energy required to regenerate the chemisorbents, heat integration 38,39 is needed in the entire TSA process to minimize the overall energy penalty.…”

Section: Introductionmentioning

confidence: 99%

Dynamic CO₂ adsorption performance of internally cooled silica‐supported poly(ethylenimine) hollow fiber sorbents

et al. 2014

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The dynamic adsorption behavior of CO2 under both nonisothermal and nearly isothermal conditions in silica supported poly(ethylenimine) (PEI) hollow fiber sorbents (Torlon®‐S‐PEI) is investigated in a rapid temperature swing adsorption (RTSA) process. A maximum CO2 breakthrough capacity of 1.33 mmol/g‐fiber (2.66 mmol/g‐silica) is observed when the fibers are actively cooled by flowing cooling water in the fiber bores. Under dry CO2 adsorption conditions, heat released from the CO2‐amine interaction increases the CO2 breakthrough capacity by reducing the severity of the diffusion resistance in the supported PEI. This internal resistance can also be alleviated by prehydrating the fiber sorbent with a humid N2 feed. The CO2 breakthrough capacity of prehydrated fibers is adversely affected by the release of the adsorption enthalpy (unlike the dry fibers); however, active cooling of the fiber results in a constant CO2 breakthrough capacity even at high CO2 delivery rates (i.e., high adsorption enthalpy delivery rates). In full RTSA cycles, a purity of 50% CO2 is achieved and the adsorption enthalpy recovery rate can reach ∼72%. Studies on the cyclic stability of uncooled fiber sorbents in the presence of SO2 and NO contaminants indicate that exposure to NO at 200 ppm over 120 cycles does not lead to a significant degradation of the sorbents, but SO2 exposure at a similar high concentration of 200 ppm causes 60% loss in CO2 breakthrough capacity after 120 cycles. A simple amine reinfusion technique is successfully demonstrated to recover the adsorption capacity in poisoned fiber sorbents after deactivation by exposure to impurities such SO2. © 2014 American Institute of Chemical Engineers AIChE J, 60: 3878–3887, 2014

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“…Most of the research in adsorption is focussed on pressure/vacuum swing adsorption for separating CO 2 (15% by vol) from flue gas in power stations that use coal as fuel (Zhang et al 2008;Reynolds et al 2008Reynolds et al , 2006Reynolds et al , 2005Franchi et al 2005;Golden et al 2003;Ko et al 2003;Gomes and Yee 2002;Takamura et al 2001aTakamura et al , 2001bZhang et al 1998;Ishibashi et al 1996;Chue et al 1995;Ruthven et al 1994;Kikkinides and Yang 1993). Kim et al 1994 reported that PSA process was uneconomical for the removal of CO 2 in a low concentration range (5-15 vol%) from power stations that use oil or natural gas as fuels. For this CO 2 concentration range, higher economic penalties may be needed to attain lower adsorbent regeneration pressures as in a Vacuum Pressure Swing Adsorption (VPSA) system.…”

Section: Introductionmentioning

confidence: 99%

Optimisation of carbon dioxide recovery from flue gas in a TPSA system

Mulgundmath

Tezel

2010

Adsorption

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Power stations and industrial processes burning fossil fuels account for the largest percentage of carbon dioxide emissions. Carbon capture and sequestration has received enormous global attention to reduce the carbon footprint and combat global warming. Adsorption has become an alternative technique to the conventional absorption process for capturing carbon dioxide due to its low operating and capital costs.In this study, Pressure Swing Adsorption (PSA) process has been compared with Thermal Pressure Swing Adsorption (TPSA) process for CO 2 recovery from a flue gas composition of 10% CO 2 (by vol) in N 2 using Ceca 13X adsorbent. A factorial design set of experiments was performed to optimise the carbon dioxide recovery and study the effects and interaction of four control parameters namely, purge/feed flow ratio, purge time, purge gas temperature and adsorption column pressure.Results indicated that better regeneration conditions used in a TPSA cycle was essential over a PSA cycle for regaining maximum adsorption capacity of the used Ceca 13X adsorbent. It was found that Purge time had a significant effect on the CO 2 recovery followed by Column pressure, purge/feed flow ratio and purge temperature. A Minitab® statistical software was used to analyse the data. It was found that the test of significance for lack of fit showed the fitted model to be an adequate representation of the experimental data. The results showed that to maximise the CO 2 recovery, highest values of the control parameters have to be used.

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Non-isothermal Adsorption of Nitrogen-carbon Dioxide Mixture in a Fixed Bed of Zeolite-X.

Cited by 32 publications

References 26 publications

Post-Combustion CO₂Capture by Vacuum Swing Adsorption Using Zeolites – a Feasibility Study

Post-Combustion CO₂Capture by Vacuum Swing Adsorption Using Zeolites – a Feasibility Study

Dynamic CO₂ adsorption performance of internally cooled silica‐supported poly(ethylenimine) hollow fiber sorbents

Optimisation of carbon dioxide recovery from flue gas in a TPSA system

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Non-isothermal Adsorption of Nitrogen-carbon Dioxide Mixture in a Fixed Bed of Zeolite-X.

Cited by 32 publications

References 26 publications

Post-Combustion CO2Capture by Vacuum Swing Adsorption Using Zeolites – a Feasibility Study

Post-Combustion CO2Capture by Vacuum Swing Adsorption Using Zeolites – a Feasibility Study

Dynamic CO2 adsorption performance of internally cooled silica‐supported poly(ethylenimine) hollow fiber sorbents

Optimisation of carbon dioxide recovery from flue gas in a TPSA system

Contact Info

Product

Resources

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Post-Combustion CO₂Capture by Vacuum Swing Adsorption Using Zeolites – a Feasibility Study

Post-Combustion CO₂Capture by Vacuum Swing Adsorption Using Zeolites – a Feasibility Study

Dynamic CO₂ adsorption performance of internally cooled silica‐supported poly(ethylenimine) hollow fiber sorbents