Carbon dioxide adsorption on zeolites and activated carbon by pressure swing adsorption in a fixed bed

Hauchhum, Lalhmingsanga; Mahanta, Pinakeswar

doi:10.1007/s40095-014-0131-3

Cited by 185 publications

(81 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

Section: Co 2 Adsorptioncontrasting

confidence: 58%

“…The CO2 retention at 298 K in HDP-montmorillonite (clay) (0.038-0.06 mmol/g) [26] and Skardon River kaolinite (0.056 mmol/g) [27] also have different operation conditions from those proposed in the present research. At the same time, these are all lower than those previously reported in activated carbons [16,28], zeolites [2], and synthetic materials [29]. The experimental points of the CO 2 isotherms estimated in the interval of 573 to 473 K were evaluated and favorably described for the Freundlich equation in their linear coordinates.…”

Section: Co2 Adsorptionmentioning

confidence: 81%

See 1 more Smart Citation

N2 and CO2 Adsorption by Soils with High Kaolinite Content from San Juan Amecac, Puebla, México

et al. 2016

View full text Add to dashboard Cite

Carbon dioxide (CO 2 ) is considered one of the most important greenhouse gases in the study of climate change. CO 2 adsorption was studied using the gas chromatography technique, while the Freundlich and Langmuir adsorption models were employed for processing isotherm data in the temperature range of 473-573 K. The isosteric heat of adsorption was calculated from the Clausius-Clapeyron equation. Moreover, the thermodynamic properties ∆G, ∆U, and ∆S were evaluated from the adsorption isotherms of Langmuir using the Van't Hoff Equation. The four soil samples were recollected from San Juan Amecac, Puebla, Mexico, and their morphologies were investigated through X-ray diffraction (XRD) and N 2 adsorption at 77 K. The SJA4 soil has a crystalline Kaolinite phase, which is one of its non-metallic raw materials, and N 2 isotherms allowed for the determination of pore size distributions and specific surface areas of soil samples. The Barrett-Joyner-Halenda (BJH) distribution of pore diameters was bimodal with peaks at 1.04 and 3.7 nm, respectively. CO 2 adsorption showed that the SJA1 soil afforded a higher amount of adsorbed CO 2 in the temperature range from 453 to 573 K followed by SJA4 and finally SJA2, classifying this process as exothermic physisorption.

show abstract

Section: Co 2 Adsorptioncontrasting

confidence: 58%

Section: Co2 Adsorptionmentioning

confidence: 81%

N2 and CO2 Adsorption by Soils with High Kaolinite Content from San Juan Amecac, Puebla, México

et al. 2016

View full text Add to dashboard Cite

show abstract

“…To the best of our knowledge, this value represents the highest CO 2 uptake capacity among all the reported water-stable Zr and Cr MOFs, and is even comparable to the top adsorbents for CO 2 capture, such as SIFSIX-3- Zn (10/90 CO 2 /N 2 mixture, gravimetric experiment, 104.4 mg g 21 , 2.37 mmol g 21 ), 25 zeolite 4A (3.26 mmol g 21 ), 69 Mg 2 (dobdc)(N 2 H 4 ) 1.8 (3.52 mmol g 21 , 313 K), 51 and zeolite 13X (4.21 mmol g 21 ). 69 Adsorption selectivity is another important parameter in screening adsorbent materials for CO 2 capture. 70 The binary CO 2 /N 2 mixture adsorption selectivities of opt-UiO-66(Zr)-(OH) 2 were calculated from the breakthrough results presented in Figure 7b and Supporting Information Table S5.…”

Section: Binary Equilibrium Data From Dynamic Breakthrough Experimentmentioning

confidence: 56%

A highly stable metal‐organic framework with optimum aperture size for CO₂ capture

Wang

Farooq

et al. 2017

AIChE Journal

View full text Add to dashboard Cite

We herein report an optimal modulated hydrothermal (MHT) synthesis of a highly stable zirconium metal‐organic framework (MOF) with an optimum aperture size of 3.93 Å that is favorable for CO2 adsorption. It exhibits excellent CO2 uptake capacities of 2.50 and 5.63 mmol g−1 under 0.15 and 1 bar at 298 K, respectively, which are among the highest of all the pristine water‐stable MOFs reported so far. In addition, we have designed a lab‐scale breakthrough set‐up to study its CO2 capture performance under both dry and wet conditions. The velocity at the exit of breakthrough column for mass balance accuracy is carefully measured using argon with a fixed flow rate as the internal reference. Other factors that may affect the breakthrough dynamics, such as pressure drop and its impact on the roll‐up of the weaker component have been studied in details. © 2017 American Institute of Chemical Engineers AIChE J, 63: 4103–4114, 2017

show abstract

“…The equilibrium relationships between the sorbent and the sorbate are defined by sorption isotherms, which give the ratio between the amount adsorbed and that remaining in the reactant at a fixed temperature at equilibrium. In the current study, for exploring the sorption isotherm, four normally used adsorption models were used to evaluate the feasibility of adsorbate–adsorbent interaction (Table , Figure ) . The predicted isotherm constants for the CO 2 adsorption and the corresponding R 2 ‐value obtained from nonlinear regression are shown in Table .…”

Section: Resultsmentioning

confidence: 99%

Exploiting response surface methodology (RSM) as a novel approach for the optimization of carbon dioxide adsorption by dry sodium hydroxide

Saeidi

Ghaemi

Tahvildari

et al. 2018

J Chinese Chemical Soc

View full text Add to dashboard Cite

As a novel strategy involving dry NaOH sorbent for CO2 capture from air is described. The influence of significant operating parameters, namely the temperature, pressure, and NaOH loading, on the CO2 capture in a fixed‐bed reactor is experimentally explored using the response surface methodology (RSM). Accordingly, in this paper, RSM based on central composite design (CCD) is exploited to design experiments, build models, and determine the optimum conditions for desirable responses. The NaOH sorbent was then characterized by various approaches such as Fourier transform infrared spectroscopy and X‐ray diffraction analysis before and after the reactions. Besides, numerous isotherm models were applied to mathematically model the CO2 adsorption, and on the basis of the regression coefficient (R2), the Frendlich model was found to deliver a perfect fit to the experimental data, based on the closeness of the R2‐value to unity. In addition to the experiments, the kinetic parameters were evaluated using a nonlinear least squares technique. The outcome achieved in this investigation can serve as a benchmark while searching for inexpensive and superior dry NaOH sorbent production in future studies.

show abstract

Carbon dioxide adsorption on zeolites and activated carbon by pressure swing adsorption in a fixed bed

Cited by 185 publications

References 23 publications

N2 and CO2 Adsorption by Soils with High Kaolinite Content from San Juan Amecac, Puebla, México

N2 and CO2 Adsorption by Soils with High Kaolinite Content from San Juan Amecac, Puebla, México

A highly stable metal‐organic framework with optimum aperture size for CO₂ capture

Exploiting response surface methodology (RSM) as a novel approach for the optimization of carbon dioxide adsorption by dry sodium hydroxide

Contact Info

Product

Resources

About

Carbon dioxide adsorption on zeolites and activated carbon by pressure swing adsorption in a fixed bed

Cited by 185 publications

References 23 publications

N2 and CO2 Adsorption by Soils with High Kaolinite Content from San Juan Amecac, Puebla, México

N2 and CO2 Adsorption by Soils with High Kaolinite Content from San Juan Amecac, Puebla, México

A highly stable metal‐organic framework with optimum aperture size for CO2 capture

Exploiting response surface methodology (RSM) as a novel approach for the optimization of carbon dioxide adsorption by dry sodium hydroxide

Contact Info

Product

Resources

About

A highly stable metal‐organic framework with optimum aperture size for CO₂ capture