CO2 capture by hollow fibre carbon membranes: Experiments and process simulations

He, Xuezhong; Lie, Jon Arvid; Sheridan, Edel; Hägg, May‐Britt

doi:10.1016/j.egypro.2009.01.037

Cited by 61 publications

(26 citation statements)

References 15 publications

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“…(2). At equilibrium, we have (10) By plotting the left hand side versus the ratio of activity coefficients, fitting the plot to a straight line, we calculated 0,s 2 − 0,s 1 from the slope as a function of temperature. The difference in the standard chemical potentials was consistent with the difference obtained from the data in Table 2.…”

Section: The Chemical Potential Of the Surface Adsorbed Gasmentioning

confidence: 99%

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Thermodynamic characterization of two layers of CO2 on a graphite surface

Trinh

Bedeaux

Simon

et al. 2014

Chemical Physics Letters

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a b s t r a c tWe find by examination of density profiles that carbon dioxide adsorbs on graphite in two distinct layers. We report the activity coefficient, entropy and enthalpy for CO 2 in each layer using a convenient computational method, the Small System Method, thereby extending this method to surfaces. This opens up the possibility to study thermodynamic properties for a wide range of surface phenomena.

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Section: The Chemical Potential Of the Surface Adsorbed Gasmentioning

confidence: 99%

“…In this work we extend the method to a technically important process, the physisorption of CO 2 on a graphite surface. Graphitic membranes are promising cheap candidate membranes for CO 2 separation purposes [10]. The process can be written:…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic characterization of two layers of CO2 on a graphite surface

Trinh

Bedeaux

Simon

et al. 2014

Chemical Physics Letters

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“…Gas separation membranes have generated growing interests in recent years, as unlike MEA-based system, CO2 capture using membrane needs no or little chemicals, requires no retrofitting for the existing power plants, have relative ease of scale-up and operation, (Ritter and Ebner, 2007;Zhao et al, 2010), and is flexible for separating gases when high purity gas streams are not vital (Powell and Qiao, 2006) At present, most of the studies on gas separation membranes focus on the membrane material selection and functionalization, membrane preparation and characterization (Aaron and Tsouris, 2005;Powell and Qiao, 2006;Scholes et al, 2008), and membrane process analysis (Bounaceur et al, 2006;He et al, 2009;Hussain and Hagg, 2010;Merkel et al, 2010;Van Der Sluijs et al, 1992;Zhao et al, 2010;Zhao et al, 2008). For instance, the parametric studies and the systematic energy analysis of a single stage membrane process (Bounaceur et al, 2006;Zhao et al, 2008), the energetic and economic analyses of multi-stage membrane processes (Zhao et al, 2010), the influences of membrane parameters and process configurations on the energy consumption and cost considering a real industrial process (Merkel et al, 2010), the process feasibility of postcombustion of the real flue gas by facilitated transport membrane based on process simulation and cost estimations (Hussain and Hagg, 2010) as well as the process feasibility analysis of hollow fiber carbon membranes for CO2 capture from flue gases Hagg, 2011, 2013).…”

Section: Introductionmentioning

confidence: 99%

Post-combustion carbon capture technologies: Energetic analysis and life cycle assessment

Zhang

Singh

et al. 2014

International Journal of Greenhouse Gas Control

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An integrated framework focusing on the energetic analysis and environmental impacts of a CO2 capture and storage (CCS) system is presented, in which the process simulation method and the life cycle assessment (LCA) method are integrated and applied to the CCS value chain.Three scenarios for carbon capture from post-combustion power plant -an MEA-based system, a gas separation membrane process and a hybrid membrane-cryogenic process are studied. The energy efficiency of power plant and the specific capture energy consumption for each scenario are estimated from process simulation. The environmental impacts for each scenario and the base case without CCS are assessed with LCA method. The results show that the MEA-based capture system faces the challenges of higher energy consumption, and higher environmental impact caused by solvent degradation and emissions compared to gas membrane separation processes. The hybrid membrane-cryogenic process shows a better environmental potential for CO2 capture from flue gases due to much lower power consumption and relatively lower environmental impacts.

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“…The production of cheap membranes for CO 2 gas separation purposes is of primary importance for the realization of carbon capture and sequestration technologies [1][2][3][4]. Nano-porous, fibrous, carbonaceous materials are promising candidates to separate CO 2 from a gas mixture of CO 2 and H 2 [5].…”

Section: Introductionmentioning

confidence: 99%

Simulation of Pore Width and Pore Charge Effects on Selectivities of CO2 vs. H2 from a Syngas-like Mixture in Carbon Mesopores

et al. 2015

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Classical molecular dynamics simulations were performed to study the effect of pore width and surface charge in carbon mesoporous materials on adsorption and diffusion selectivities of CO 2 /H 2 in a syngas-like mixture (mole fraction of CO 2 = 0.30). The pore width of the graphite slit varied from 2.5 to 5.0 nm, while the temperature varied from 300K to 400 K. Both selectivities were relatively insensitive to the pore width. Metal contamination, mimicked with localized charges within an electroneutral pore surface, was found to increase the adsorption selectivity ratio for CO 2 vs H 2 and decrease the diffusion selectivity for CO 2 vs H 2 . Such surface charges interact with CO 2 molecules only and can enhance the separation of H 2 from the syngas mixture, retaining CO 2 . Rising temperature will enhance diffusion selectivity, however reduce the adsorption selectivity of CO 2 . The results imply that surface charges can be used to favor the enrichment process of CO 2 .

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CO2 capture by hollow fibre carbon membranes: Experiments and process simulations

Cited by 61 publications

References 15 publications

Thermodynamic characterization of two layers of CO2 on a graphite surface

Thermodynamic characterization of two layers of CO2 on a graphite surface

Post-combustion carbon capture technologies: Energetic analysis and life cycle assessment

Simulation of Pore Width and Pore Charge Effects on Selectivities of CO2 vs. H2 from a Syngas-like Mixture in Carbon Mesopores

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