High CO adsorption capacity, and CO selectivity to CO2, N2, H2, and CH4 of CuCl/bayerite adsorbent

Cho, Kanghee; Kim, Jung-Su; Park, J.H.; Jung, Timothy; Beum, Hee Tae; Cho, Dong‐Woo; Rhee, Young Woo; Han, Sang Sup

doi:10.1016/j.micromeso.2018.10.010

Cited by 52 publications

(20 citation statements)

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“…At 60 °C, leaping was not observed in the range of temperatures tested. Explaining the leaping phenomenon in detail requires additional research on the π-complexation mechanism between cuprous ion and CO and geometric characteristic on the boehmite pore …”

Section: Results and Discussionmentioning

confidence: 99%

“…Explaining the leaping phenomenon in detail requires additional research on the π-complexation mechanism between cuprous ion and CO and geometric characteristic on the boehmite pore. 23 Also, hysteresis, in which the adsorption curve does not match the desorption curve, occurred in the isotherm curve data of 20 and 40 °C. However, as the temperature increased, the hysteresis region became smaller.…”

Section: Modelingmentioning

confidence: 99%

“…By choosing suitable supporting materials that have low adsorption capacity of CO 2 , these adsorbents have much higher CO/CO 2 selectivity. 22,23 Use of numerical study of the adsorption process can reduce the time and expense of optimizing operation steps, bed number, temperature, and pressure. 24−26 The models must be parameterized using data from experiments on static adsorption equilibrium and dynamic adsorption kinetics of the target adsorbent.…”

Section: Introductionmentioning

confidence: 99%

“…To overcome the low CO/CO 2 selectivity, a previous study by our group reported improved CO-selective adsorbents: CuCl on boehmite and CuCl on activated bayerite. By choosing suitable supporting materials that have low adsorption capacity of CO 2 , these adsorbents have much higher CO/CO 2 selectivity. , …”

Section: Introductionmentioning

confidence: 99%

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Experiment and Modeling of Adsorption of CO from Blast Furnace Gas onto CuCl/Boehmite

Beum

Yoon

et al. 2020

Ind. Eng. Chem. Res.

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Adsorption of CO, CO2, and N2 gas on a CuCl/boehmite is studied in static and dynamic experiments to separate CO from blast furnace gas (BFG). The adsorption isotherms of CO, CO2, and N2 were measured at 20–60 °C. Much more CO than CO2 and N2 was adsorbed within a given temperature range. The adsorption isotherms of CO display a hysteresis loop and leaping phenomenon. The dual-site Langmuir–Freundlich model was chosen to express the adsorption equilibrium of CO. This isotherm model was successfully achieved to describe the equilibrium data of CO. To express the isotherm of CO2 and N2, the Langmuir–Freundlich model was applied. Also, breakthrough experiments were performed at 25, 40, and 55 °C with 7 bar and 1 L min–1 (25 °C, 1 bar) feed flow rate using simulated BFG (CO/CO2/N2 = 20:20:60 mol %). Within a given temperature range, the experiment results showed that CO has longer breakthrough time than CO2 and N2. CO2 and N2 also showed the roll-up phenomenon within the temperature range tested. To predict the breakthrough curve of the simulated BFG, a one-dimensional, nonisothermal model was formulated. The pseudo-second-order model was selected for CO adsorption kinetics, and the pseudo-first-order model was chosen for CO2 and N2. This model successfully expressed the experimental data. This study widened the understanding of the static and dynamic adsorption characteristics of simulated BFG on the CuCl/boehmite adsorbent within the considered temperature and pressure range. The results may guide future work, especially to find a feasible pressure swing adsorption process to obtain high-purity CO from BFG.

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Section: Results and Discussionmentioning

confidence: 99%

Section: Modelingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Experiment and Modeling of Adsorption of CO from Blast Furnace Gas onto CuCl/Boehmite

Beum

Yoon

et al. 2020

Ind. Eng. Chem. Res.

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“…Rhodium carbonyl catalyst is originally the catalyst with good effect in this method, therefore, pincer-type ruthenium Machocatalyst may be a catalyst worth trying. Some new methods, such as the use of membranes or adsorbents, [103,104] also help to break through the thermodynamic limitations of the reaction, which is also the possible development direction of DSEG in the future.…”

Section: Summaries and Challengesmentioning

confidence: 99%

Direct Synthesis of Ethylene Glycol from Syngas

Sun

Chai

2022

ChemistrySelect

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After decades of development, the reaction conditions for direct synthesis of ethylene glycol (EG) from syngas are still very harsh. The reason for the severe conditions of direct synthesis of EG is revealed by thermodynamic analysis. This review analyzed the reason why all the current studies on direct synthesis of EG from syngas are homogeneous synthesis. Through the evidence of other related studies and the exploration of reaction mechanism, some suggestions for the further investigation of direct synthesis of EG are also put forward. We also summarizes the progress of direct synthesis of EG from syngas in the past decades, and details the current development status. The catalysts, promoters and reaction conditions used for direct synthesis of EG are sorted out.

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Fabrication of new in‐situ ternary nano/microcomposite LDH/Ag₂O/Bayerite in trimetallic NiAg/Al layered double hydroxides for CO₂ capture material

Wihadi

2024

Greenhouse Gases

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We reported new in‐situ ternary nano/microcomposite layered double hydroxides/Ag2O/bayerite in trimetallic NiAg/Al layered double hydroxides (LDH) via hydrothermal technique; and characterization by powder X‐ray diffraction (XRD), Fourier transforms infrared spectroscopy (FT‐IR), field emission scanning electron microscopy (FE‐SEM), energy dispersive spectroscopy (EDS), and N2 adsorption‐desorption. The formation of bayerite and silver oxide species on the LDH nanosheet depended on the excess of Al3+ and Ag+ in the solution under alkaline and hydrothermal conditions. The nitrogen isotherm adsorption profile for all ternary composites exhibited uniformity with mesoporous and lamellar characteristics. The surface area of all the composites ranged from 81.17 to 150.23 m2. g−1, the Barret‐Joyner‐Halenda (BJH) pore volume from 0.22 to 0.27 cm3. g−1, and the average pore diameter ranged from 3.47 to 5.78 nm. All composites show a laminar plate‐like structure covered with elongated pieces. The particle size of the composites ranged from 54.86 to 115.96 nm, indicating the size changed from nano to microcomposite because of the different molar ratios of Ag and Ni in the solid. The ternary composite reveals CO2 capture activity with adsorption capacity ranging from 13.93 to 19.61 mmol g−1. © 2024 Society of Chemical Industry and John Wiley & Sons, Ltd.

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High CO adsorption capacity, and CO selectivity to CO2, N2, H2, and CH4 of CuCl/bayerite adsorbent

Cited by 52 publications

References 16 publications

Experiment and Modeling of Adsorption of CO from Blast Furnace Gas onto CuCl/Boehmite

Experiment and Modeling of Adsorption of CO from Blast Furnace Gas onto CuCl/Boehmite

Direct Synthesis of Ethylene Glycol from Syngas

Fabrication of new in‐situ ternary nano/microcomposite LDH/Ag₂O/Bayerite in trimetallic NiAg/Al layered double hydroxides for CO₂ capture material

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High CO adsorption capacity, and CO selectivity to CO2, N2, H2, and CH4 of CuCl/bayerite adsorbent

Cited by 52 publications

References 16 publications

Experiment and Modeling of Adsorption of CO from Blast Furnace Gas onto CuCl/Boehmite

Experiment and Modeling of Adsorption of CO from Blast Furnace Gas onto CuCl/Boehmite

Direct Synthesis of Ethylene Glycol from Syngas

Fabrication of new in‐situ ternary nano/microcomposite LDH/Ag2O/Bayerite in trimetallic NiAg/Al layered double hydroxides for CO2 capture material

Contact Info

Product

Resources

About

Fabrication of new in‐situ ternary nano/microcomposite LDH/Ag₂O/Bayerite in trimetallic NiAg/Al layered double hydroxides for CO₂ capture material