Li<sup>+</sup>- and H<sup>+</sup>-Exchanged Low-Silica X Zeolite as Selective Nitrogen Adsorbent for Air Separation

Kim, Jin Bae

doi:10.5012/bkcs.2003.24.12.1814

Cited by 15 publications

(1 citation statement)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several porous adsorbents have been attempted for O 2 separation from air, including Li-exchange low-silica X zeolite (LSX; Si/Al ≈ 1.0), , Ca-LSX, LiCa-LSX, Sr-LSX, and LiSr-LSX . Li et al evaluated the adsorption capacity of Li-LSX for pure N 2 and O 2 .…”

Section: Introductionmentioning

confidence: 99%

Equilibrium Adsorption of Nitrogen, Oxygen, and Argon on Silver-Exchanged Hierarchical ETS-10

et al. 2023

View full text Add to dashboard Cite

Silver-exchanged hierarchical ETS-10 (Ag-H-ETS-10) was synthesized using Ag + exchange with hierarchical Engelhard titanosilicate (H-ETS-10) using silver nitrate solution. The physical properties of the adsorbent were analyzed using X-ray diffraction (XRD), BET surface area, nitrogen adsorption−desorption, pore volume, energy dispersive spectroscopy (EDS), and high resolution-transmission electron microscopy (HR-TEM). N 2 physisorption data confirmed that a micro-mesoporous (bimodal) structure was created in the Ag-H-ETS-10. The equilibrium adsorbent data of pure gases N 2 , O 2 , and Ar were investigated in the temperature range from 288 to 318 K up to 10 bar. The equilibrium adsorption capacity of Ag-H-ETS-10 was found to be 1.12 mmol g −1 for N 2 , 0.87 mmol g −1 for O 2 , and 1.09 mmol g −1 for Ar at 298 K and ∼10 bar. ∼20% higher adsorption capacity was found for N 2 and Ar in Ag-H-ETS-10 compared to Ag-ETS-10. The higher sorption capacity was attributed to the formation of a bimodal structure and π-complexation interaction by the Ag cation, which allows a multilayer of N 2 and Ar molecules. The Sips isotherm model was well fitted for the Ag-H-ETS-10 experimental data among Langmuir, Freundlich, Toth, and Temkin models. The measured equilibrium adsorption data for Ag-H-ETS-10 can be useful for the O 2 purification process.

show abstract

Section: Introductionmentioning

confidence: 99%

Equilibrium Adsorption of Nitrogen, Oxygen, and Argon on Silver-Exchanged Hierarchical ETS-10

et al. 2023

View full text Add to dashboard Cite

show abstract

Macrocyclic Weakly Coordinating Anions

Landskron

2015

Chemistry A European J

View full text Add to dashboard Cite

Herein, the concept of macrocyclic weakly coordinating anions (M-WCAs) is introduced. Synthetic methodologies are described how to access M-WCAs by thermodynamically controlled self-assembly in high yields, in particular through condensation and alkyne metathesis reactions. The anticipated properties and applications of M-WCAs in solid state and in solution are discussed, specifically for gas storage and separation, homogeneous and heterogeneous catalysis, and as liquid and solid electrolytes.

show abstract

Highly crystalline LSX zeolite derived from biosilica for copper adsorption: the green synthesis for environmental treatment

Tontisirin

2015

J Porous Mater

View full text Add to dashboard Cite

Li⁺- and H⁺-Exchanged Low-Silica X Zeolite as Selective Nitrogen Adsorbent for Air Separation

Cited by 15 publications

References 11 publications

Equilibrium Adsorption of Nitrogen, Oxygen, and Argon on Silver-Exchanged Hierarchical ETS-10

Equilibrium Adsorption of Nitrogen, Oxygen, and Argon on Silver-Exchanged Hierarchical ETS-10

Macrocyclic Weakly Coordinating Anions

Highly crystalline LSX zeolite derived from biosilica for copper adsorption: the green synthesis for environmental treatment

Contact Info

Product

Resources

About

Li+- and H+-Exchanged Low-Silica X Zeolite as Selective Nitrogen Adsorbent for Air Separation

Cited by 15 publications

References 11 publications

Equilibrium Adsorption of Nitrogen, Oxygen, and Argon on Silver-Exchanged Hierarchical ETS-10

Equilibrium Adsorption of Nitrogen, Oxygen, and Argon on Silver-Exchanged Hierarchical ETS-10

Macrocyclic Weakly Coordinating Anions

Highly crystalline LSX zeolite derived from biosilica for copper adsorption: the green synthesis for environmental treatment

Contact Info

Product

Resources

About

Li⁺- and H⁺-Exchanged Low-Silica X Zeolite as Selective Nitrogen Adsorbent for Air Separation