Fluid bed adsorption of carbon dioxide on immobilized polyethylenimine (PEI): Kinetic analysis and breakthrough behavior

Monazam, Esmail R.; Spenik, James; Shadle, Lawrence J.

doi:10.1016/j.cej.2013.02.041

Cited by 71 publications

(56 citation statements)

References 45 publications

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“…The influence of temperature on the CO 2 adsorption of PMFR-PEI-30% (30% PEI loading) was investigated ( Figure 8). It is obvious that the PMFR-PEI-30% adsorbent showed a maximum adsorption capacity of 2.89 mmol/g at 30°C, implying the balance between CO 2 diffusion into inner layer of PEI and the desorption of CO 2 from PEI [43,45]. The adsorption process at a lower temperature was diffusion controlled, elevation of temperature would accelerate the diffusion of CO 2 inside of the thick layer of the PEI, and be beneficial for the full extension of the PEI's chain and hence provide more adsorption sites, leading to more sufficient contact with CO 2 .…”

Section: Co 2 Adsorption Performance Of Pei Supported On Pmfrsmentioning

confidence: 99%

Simple synthesis of porous melamine-formaldehyde resins by low temperature solvothermal method and its CO2 adsorption properties

Yin¹,

Xu²,

Wang³

et al. 2017

Express Polym. Lett.

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Abstract.A simple and environmentally-friendly approach for the preparation of porous melamine-formaldehyde resins (PMFRs) was developed by using low-boiling-point solvents, such as water, as pore-forming agent. With using dimethyl sulfoxide (DMSO) and low-boiling solvents cosolvent method, PMFRs with a high specific surface area and well-defined pore structure can be synthesized at a low reaction temperature of 140°C for a short reaction duration in 20 hours, which can replace the conventional methods that use dimethyl sulfoxide (DMSO) as reaction medium and require 3 days at 170°C to achieve similar surface area. When loaded with polyethylenimine (PEI), the PMFR-PEI-30% showed good CO 2 adsorption performance with a capacity of up to 2.89 mmol/g at 30°C. These results bring new perspectives for the development of lowcost and environmentally-friendly synthetic methods for porous materials, which can boost their widespread applications.

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Section: Co 2 Adsorption Performance Of Pei Supported On Pmfrsmentioning

confidence: 99%

Simple synthesis of porous melamine-formaldehyde resins by low temperature solvothermal method and its CO2 adsorption properties

Yin¹,

Xu²,

Wang³

et al. 2017

Express Polym. Lett.

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“…Among the properties expected of a good adsorbent, fast adsorption kinetics is one of the most critical since the residence time required for the completion of the adsorption process, adsorption bed size and, consequently, unit capital costs are all intrinsically associated with the rate of adsorption [26,27]. Most kinetic studies are directed at predicting the rate-limiting step and obtaining a conceptual understanding of the mechanism associated with the adsorption [28].…”

Section: Adsorption Ratementioning

confidence: 99%

Kinetics of CO2 adsorption on cherry stone-based carbons in CO2/CH4 separations

Álvarez-Gutiérrez

Gil

Rubiera

et al. 2017

Chemical Engineering Journal

173

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Most practical applications of solids in industry involve porous materials and adsorption processes. A correct assessment of the equilibrium and kinetics of adsorption is extremely important for the design and operation of adsorption based processes. In our previous studies we focused on the evaluation of the equilibrium of CO 2 /CH 4 adsorption on cherry stone-based carbons. In the present paper the kinetics of adsorption of CO 2 on two cherry stone-based activated carbons (CS-H 2 O and CS-CO 2 ), previously prepared in our laboratory, has been evaluated by means of transient breakthrough experiments at different CO 2 /CH 4 feed concentrations, at atmospheric pressure and 30 ˚C. A commercial activated carbon, Calgon BPL, has also been evaluated for reference purposes. Three models have been applied to estimate the rate parameters during the adsorption of CO 2 on these carbons, pseudo-first, pseudo-second and Avrami´s fractional order kinetic models. Avrami´s model accurately predicted the dynamic CO 2 adsorption performance of the carbons for the different feed gas compositions. To further investigate the mechanism of CO 2 adsorption on CS-H 2 O, CS-CO 2 and Calgon BPL, intra-particle diffusion and Boyd´s film-diffusion models were also evaluated. It was established that mass transfer during the adsorption of CO 2 from CO 2 /CH 4 is a diffusion-based process and that the main diffusion mechanisms involved 2 are intra-particle and film diffusion. At the initial stages of adsorption, film diffusion resistance governed the adsorption rate, whereas intra-particle diffusion resistance was the predominant factor in the following stages of adsorption.

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“…There are four main categories of these technologies: precombustion, postcombustion, oxy-fuel combustion, and chemical looping [5]. [12] 13X Zeolite PSA and VSA N/A Chaffee et al [13] 13X Zeolite VSA N/A Schell et al [14] Activated Carbon PSA Fixed bed Wang et al [15] 13X Zeolite and activated carbon VPSA Fixed bed Pirngruber and Leinekugel-Le-Cocq [16] Supported polyamine PSA N/A Siriwardane et al [17] NaOH/CaO TSA TGA and fixed bed Fauth et al [18] Supported mixed amines TSA Fixed bed Gray et al [19] Supported tertiary amine TSA TGA and fixed bed Gray et al [20] Supported amine TSA TGA Lee et al [21] Supported amine TSA TGA Sjostrom et al [22] Supported amine TSA CFB Sjostrom and Krutka [23] Supported amine TSA Fixed bed Monazam et al [24] Supported amine TSA Fluidized bed…”

Section: Introductionmentioning

confidence: 99%

“…An overview of the literature [12][13][14][15][16][17][18][19][20][21][22][23][24] and the various sorbent reactor configurations is presented in Table 1. Samanta et al [25] and Choi et al [26] provide comprehensive reviews of sorbent processes employing temperature swing, pressure swing, or vacuum swing to regenerate the adsorbate, referred to as PSA, TSA, and VSA concepts, respectively.…”

Section: Introductionmentioning

confidence: 99%

“…Samanta et al [25] and Choi et al [26] provide comprehensive reviews of sorbent processes employing temperature swing, pressure swing, or vacuum swing to regenerate the adsorbate, referred to as PSA, TSA, and VSA concepts, respectively. The TSA concepts have gained favor recently because the polyamine impregnated sorbents which have strong temperature dependence in the temperature range of interest can be made with high CO 2 capacity [17][18][19][20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

CO₂ Adsorption: Experimental Investigation and CFD Reactor Model Validation

Breault

Spenik²,

Huckaby

2014

Journal of Computational Environmental Sciences

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The National Energy Technology Laboratory is investigating a new process for CO 2 capture from large sources such as utility power generation facilities as an alternative to liquid amine based adsorption processes. Many of these advanced dry processes are based upon sorbents composed of supported polyamines. In this analysis, experiments have been conducted in a laboratory-scale fluidized bed reactor and compared to CFD reactor predictions using kinetics obtained from TGA tests. Batch experiments were conducted by flowing a mixture of CO 2 , H 2 O, and N 2 (simulated flue gas) through a fluidized bed of sorbent material. The exit gas composition time series data is compared to CFD simulations using a 3-dimensional nonisothermal reacting multiphase flow model. The effects of the gas flow rate, distributor design, and particle size are explored through the CFD simulations. It is shown that the time duration for CO 2 adsorption decreased for an increase in the gas flow. Fluid bed hydrodynamics indicated that there were regions in the reactor where the inert FCC particles segregated and defluidized; without adversely affecting the capacity of the sorbent to adsorb CO 2 . The details of the experimental facility and the model as well as the comparative analysis between the data and the simulation results are discussed.

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Fluid bed adsorption of carbon dioxide on immobilized polyethylenimine (PEI): Kinetic analysis and breakthrough behavior

Cited by 71 publications

References 45 publications

Simple synthesis of porous melamine-formaldehyde resins by low temperature solvothermal method and its CO2 adsorption properties

Simple synthesis of porous melamine-formaldehyde resins by low temperature solvothermal method and its CO2 adsorption properties

Kinetics of CO2 adsorption on cherry stone-based carbons in CO2/CH4 separations

CO₂ Adsorption: Experimental Investigation and CFD Reactor Model Validation

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Fluid bed adsorption of carbon dioxide on immobilized polyethylenimine (PEI): Kinetic analysis and breakthrough behavior

Cited by 71 publications

References 45 publications

Simple synthesis of porous melamine-formaldehyde resins by low temperature solvothermal method and its CO2 adsorption properties

Simple synthesis of porous melamine-formaldehyde resins by low temperature solvothermal method and its CO2 adsorption properties

Kinetics of CO2 adsorption on cherry stone-based carbons in CO2/CH4 separations

CO2 Adsorption: Experimental Investigation and CFD Reactor Model Validation

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Product

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CO₂ Adsorption: Experimental Investigation and CFD Reactor Model Validation