Simultaneous extraction of C3H8 and C2H6 from ternary C3H8/C2H6/CH4 mixtures in an ultra-microporous metal–organic framework

Lan, Lan; Lu, Nan; Yin, Jia-Cheng; Gao, Qiang; Lang, Feifan; Zhang, Ying-Hui; Nie, Hong-Xiang; Li, Na; Bu, Xian-He

doi:10.1016/j.cej.2023.146750

Cited by 17 publications

(8 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A comparison of the C 3 H 8 and C 2 H 6 capacities of MOFs used for natural gas separation for the latest year is shown in Figure S22 and Table S3. It can be seen that our materials have better adsorption capacities for C 3 H 8 and C 2 H 6 than most MOFs. , …”

Section: Resultsmentioning

confidence: 99%

“…It can be seen that our materials have better adsorption capacities for C 3 H 8 and C 2 H 6 than most MOFs. 53,54 Additionally, the isosteric heat of adsorption (Q st ) was utilized to assess the energetic heterogeneity of the adsorbent surface and the interactions between the adsorbents and adsorbates. However, the adsorption capacity for CH 4 was too small to be accurately measured for the Q st calculations.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Microporous Fluorinated MOF with Multiple Adsorption Sites for Efficient Recovery of C₂H₆ and C₃H₈ from Natural Gas

Yan,

Zheng,

Song

et al. 2024

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Purifying C 2 H 6 /C 3 H 8 from a ternary natural gas mixture through adsorption separation is an important but challenging process in the petrochemical industry. To address this challenge, the industry is exploring effective strategies for designing high-performance adsorbents. In this study, we present two metal−organic frameworks (MOFs), DMOF-TF and DMOF-(CF 3 ) 2 , which have fluorinated pores obtained by substituting linker ligands in the host material. This pore engineering strategy not only provides suitable pore confinement but also enhances the adsorption capacities for C 2 H 6 /C 3 H 8 by providing additional binding sites. Theoretical calculations and transient breakthrough experiments show that the introduction of F atoms not only improves the efficiency of natural gas separation but also provides multiple adsorption sites for C 2 H 6 /C 3 H 8 −framework interactions.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: ■ Results and Discussionmentioning

confidence: 99%

Microporous Fluorinated MOF with Multiple Adsorption Sites for Efficient Recovery of C₂H₆ and C₃H₈ from Natural Gas

Yan,

Zheng,

Song

et al. 2024

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

“…0.5 cm 3 •g −1 ) at the same pressure. The C 3 H 8 uptake at low pressure (5 kPa) is slightly lower than these adsorbents with ultra-high C 3 H 8 uptakes, such as Fe-pyz (61.4 cm 3 •g −1 ) and Co-pyz (63.7 cm 3 •g −1 ) 38 (Table S3), but is much higher than HOF-ZJU-201a (49.9 cm 3 •g −1 ), 39 MIL-142A (41.2 cm 3 •g −1 ), 40 Co-MOF (36.6 cm 3 •g −1 ), 13 UiO-67 (22.4 cm 3 •g −1 ), 41 and SDMOF-3 (36.1 cm 3 •g −1 ). 42 The remarkable differences between these light hydrocarbons predict that HOF-NBDA has great potential for separating these gases mixture.…”

Section: Gas Adsorption Experimentsmentioning

confidence: 94%

“…These results indicate that HOF-NBDA can 40 Cu-IPA (43.9 kJ•mol −1 ), 43 DMOF-Cl (36 kJ•mol −1 ), 44 and Ni-MOF (39.6 kJ•mol −1 ). 35 39 UiO-66 (32.0), 45 Zn-BPZ-SA (65.7), 46 and SDMOF-3 (49.4), 42 it is lower than that of NIIC-20-Et (1110), 47 Co-MOF (290), 13 MIL-142A (1300), 40 and BSF-1 (353). 48 The above result also indicates that HOF-NBDA has great potential for CH 4 /C 2 H 6 /C 3 H 8 separation.…”

Section: Gas Adsorption Experimentsmentioning

confidence: 96%

Robust Two-Dimensional Hydrogen-Bonded Organic Framework for Efficient Separation of C1–C3 Alkanes

Zhou,

Zhu,

Song

et al. 2024

Chem Bio Eng.

View full text Add to dashboard Cite

Separating natural gas to obtain high-quality C1−C3 alkanes is an imperative process for supplying clean energy sources and high valued petrochemical feedstocks. However, developing adsorbents which can efficiently distinguish CH 4 , C 2 H 6 , and C 3 H 8 molecules remains challenging. We herein report an ultra-stable layered hydrogen-bonded framework (HOF-NBDA), which features differential affinities and adsorption capacities for CH 4 , C 2 H 6 , and C 3 H 8 molecules, respectively. Breakthrough experiments on ternary component gas mixture show that HOF-NBDA can achieve efficient separation of CH 4 /C 2 H 6 /C 3 H 8 (v/v/v, 85/7.5/7.5). More importantly, HOF-NBDA can realize efficient C 3 H 8 recovery from ternary CH 4 /C 2 H 6 /C 3 H 8 gas mixture. After one cycle of breakthrough, 70.9 L•kg −1 of high-purity (≥ 99.95%) CH 4 and 54.2 L•kg −1 of C 3 H 8 (purity ≥99.5%) could be obtained. Furthermore, excellent separation performance under different flow rates, temperatures, and humidities could endow HOF-NBDA an ideal adsorbent for the future natural gas purification.

show abstract

“…Among the effective separation method, including cryogenic distillation, − membrane separation, − pressure swing adsorption (PSA), , physical, and/or chemical adsorption, , etc., PSA has attracted a lot of attention due to its low energy consumption and low capital investment cost. Traditional porous solid materials, such as zeolite and activated carbon, have been broadly utilized in the realm of PSA over the past few decades.…”

Section: Introductionmentioning

confidence: 99%

Porous Triple-Layered Supramolecular Heptazine-Based MOF with High Concentration of Binding Sites for Selective Separation of Methane

Li,

Liu,

Wang

et al. 2024

Crystal Growth & Design

View full text Add to dashboard Cite

Developing energy-efficient alternatives for pressure swing adsorption for methane separation from unconventional natural gas is crucial and challenging in the petrochemical industry. Herein, a heptazine-based porous MOF featuring a triple-layered supramolecular framework built on 2D stacked honeycomb layers was reported, which revealed 1D elliptic channels decorated with high concentrations of binding sites arising from unsaturated metal sites and exposed N atoms. The MOF displays high C2 and CO2 loadings and IAST selectivities with respect to CH4. The molecular simulation reveals that a high concentration of binding sites in 1D elliptic channels accounts for the highly selective separation of methane.

show abstract

Simultaneous extraction of C3H8 and C2H6 from ternary C3H8/C2H6/CH4 mixtures in an ultra-microporous metal–organic framework

Cited by 17 publications

References 39 publications

Microporous Fluorinated MOF with Multiple Adsorption Sites for Efficient Recovery of C₂H₆ and C₃H₈ from Natural Gas

Microporous Fluorinated MOF with Multiple Adsorption Sites for Efficient Recovery of C₂H₆ and C₃H₈ from Natural Gas

Robust Two-Dimensional Hydrogen-Bonded Organic Framework for Efficient Separation of C1–C3 Alkanes

Porous Triple-Layered Supramolecular Heptazine-Based MOF with High Concentration of Binding Sites for Selective Separation of Methane

Contact Info

Product

Resources

About

Simultaneous extraction of C3H8 and C2H6 from ternary C3H8/C2H6/CH4 mixtures in an ultra-microporous metal–organic framework

Cited by 17 publications

References 39 publications

Microporous Fluorinated MOF with Multiple Adsorption Sites for Efficient Recovery of C2H6 and C3H8 from Natural Gas

Microporous Fluorinated MOF with Multiple Adsorption Sites for Efficient Recovery of C2H6 and C3H8 from Natural Gas

Robust Two-Dimensional Hydrogen-Bonded Organic Framework for Efficient Separation of C1–C3 Alkanes

Porous Triple-Layered Supramolecular Heptazine-Based MOF with High Concentration of Binding Sites for Selective Separation of Methane

Contact Info

Product

Resources

About

Microporous Fluorinated MOF with Multiple Adsorption Sites for Efficient Recovery of C₂H₆ and C₃H₈ from Natural Gas

Microporous Fluorinated MOF with Multiple Adsorption Sites for Efficient Recovery of C₂H₆ and C₃H₈ from Natural Gas