Natural gas dehydration by adsorption using MOFs and silicas: A review

Santos, Kátilla Monique Costa; Menezes, Tamires R.; Oliveira, Marília R.; Silva, Thauane S.L.; Santos, Klebson Silva; Barros, Vinicius A.; Melo, Dárley Carrijo de; Ramos, André Luís Dantas; Santana, César Costapinto; Franceschi, Elton; Dariva, Cláudio; Egues, Silvia Maria; Borges, Gustavo R.; Conto, Juliana F. De

doi:10.1016/j.seppur.2021.119409

Cited by 42 publications

(13 citation statements)

References 181 publications

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“…The chemical composition of the crude NG found in oil and gas reservoirs is composed of methane (as a major component), and in smaller quantities, ethane, propane, and butane, among other gaseous hydrocarbons. It also contains undesirable compounds such as water vapor, carbon dioxide, nitrogen, and hydrogen sulfide [3,4]. In industrial use, natural gas is subjected to different cleaning processes to meet product quality standards.…”

Section: Introductionmentioning

confidence: 99%

Zeolite Waste Characterization and Use as Low-Cost, Ecofriendly, and Sustainable Material for Malachite Green and Methylene Blue Dyes Removal: Box–Behnken Design, Kinetics, and Thermodynamics

et al. 2022

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This study investigated the potential of 4A zeolite, named4AZW in this work, generated by natural gas dehydration units as solid waste after several treatment cycles, as a low-cost adsorbent to separately remove two cationic dyes, methylene blue (MB) and malachite green (MG), from an aqueous solution within a batch process. The adsorbent material was characterized by N2gas adsorption–desorption, X-ray fluorescence spectrometry, X-ray diffraction, FT-IR spectroscopy, and the determination of its cation exchange capacity and point of zero charge. The influence of key operating parameters, such as the pH, adsorbent dosage, ionic strength, contact time, initial dye concentration, and temperature, was investigated. Three independent variables acting on MB adsorption performance were selected from the Box–Behnken design (BBD) and for process modeling and optimization. An analysis of variance (ANOVA), an F-test, and p-values were used to analyze the main and interaction effects. The experimental data were satisfyingly fitted with quadratic regression with adjusted R2= 0.9961. The pseudo-second-order kinetic model described the adsorption of the dyes on 4AZW. The equilibrium data were well-fitted by the Langmuir model for each adsorption system (MB-4AZW and MG-4AZW) with maximum adsorption capacity (qmax) values of 9.95 and 45.64 mg/g, respectively, at 25 °C. Thermodynamics studies showed that both adsorption systems are spontaneous and endothermic.

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Section: Introductionmentioning

confidence: 99%

Zeolite Waste Characterization and Use as Low-Cost, Ecofriendly, and Sustainable Material for Malachite Green and Methylene Blue Dyes Removal: Box–Behnken Design, Kinetics, and Thermodynamics

et al. 2022

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“…Unfortunately, compared with the activated sample, the results of PXRD significantly changed, which means that the structure of the MOF was destroyed in the water solvent, indicating that our material does not have water resistance and good chemical stability (Figures S10–S12). To solve this problem, purification of natural gas could be conducted ahead such as liquid desiccant absorption technique, solid desiccant adsorption, , and membrane separation dehydration, which may remove moisture to ensure that the adsorbent can be recycled. Additionally, FT-IR spectra were recorded to confirm the successful synthesis of the MOFs (Figure S13).…”

Section: Resultsmentioning

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

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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.

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“…UiO-66-NH 2 (8.3 min g −1 ) and MIL-101 (18 min g −1 ) show a longer retention time than commercial adsorbents (<7.5 min g −1 ) in the dynamic breakthrough experiments carried out with a natural gas flow rate of 200 cm 3 min −1 at 75% RH. 6,129…”

Section: Application Of Water-absorbing Mofmentioning

confidence: 99%

“…4 Therefore, finding suitable water adsorbents is an effective alternative to solve water harvesting and energy conversion problems. Meanwhile, water adsorbents are widely applied in chemical dehydration, 5,6 indoor humidity maintenance, 7,8 food preservation 9 and other fields, and play an important role in many aspects of industrial production and daily life.…”

Section: Introductionmentioning

confidence: 99%

Recent advances in metal–organic frameworks for water absorption and their applications

Cheng,

Dang,

Wang

et al. 2024

Mater. Chem. Front.

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Natural gas dehydration by adsorption using MOFs and silicas: A review

Cited by 42 publications

References 181 publications

Zeolite Waste Characterization and Use as Low-Cost, Ecofriendly, and Sustainable Material for Malachite Green and Methylene Blue Dyes Removal: Box–Behnken Design, Kinetics, and Thermodynamics

Zeolite Waste Characterization and Use as Low-Cost, Ecofriendly, and Sustainable Material for Malachite Green and Methylene Blue Dyes Removal: Box–Behnken Design, Kinetics, and Thermodynamics

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

Recent advances in metal–organic frameworks for water absorption and their applications

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Natural gas dehydration by adsorption using MOFs and silicas: A review

Cited by 42 publications

References 181 publications

Zeolite Waste Characterization and Use as Low-Cost, Ecofriendly, and Sustainable Material for Malachite Green and Methylene Blue Dyes Removal: Box–Behnken Design, Kinetics, and Thermodynamics

Zeolite Waste Characterization and Use as Low-Cost, Ecofriendly, and Sustainable Material for Malachite Green and Methylene Blue Dyes Removal: Box–Behnken Design, Kinetics, and Thermodynamics

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

Recent advances in metal–organic frameworks for water absorption and their applications

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Product

Resources

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