Propane selective carbon adsorbents from phenolic resin precursor

Andrade, Márcia; Parnell, Andrew J.; Bernardo, Gabriel; Mendes, Adélio

doi:10.1016/j.micromeso.2021.111071

Cited by 16 publications

(9 citation statements)

References 75 publications

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“…Phenolic resin micro‐sized particles were carbonized for the selective adsorption of propane over propylene. [ 97 ] In this process, resins were first treated with phosphoric acid for hydrolysis. Then, it was carbonized under an N 2 atmosphere up to 1350°C in an alumina tubular furnace.…”

Section: Synthesis Methods Of Porous Materialsmentioning

confidence: 99%

A comprehensive review on the synthesis techniques of porous materials for gas separation and catalysis

et al. 2022

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Intrinsic structural characteristics of porous materials have found significant applications in selective separation of gases and heterogeneous catalysis. While using porous materials for gas separation and catalysis, some of the challenging issues are the strength of catalytic sites, hydrothermal stability, crystalline order of solids, and selectivity. Researchers' ability to engineer the synthesis strategies rationally can help overcome technological challenges. In recent years, breakthroughs in porous materials are focused on developing different chemistries to control the pore architecture. This review focuses on recent advances made in synthesis strategies of porous materials and their impact on gas separation and catalysis applications. A significant part of this review is devoted to various synthesis methods, such as various types of templating methods, molecular layer deposition, sol-gel technique, and polymerization methods. Improvement in various catalytic reactions and gas separations due to different functionalization methods is also summarized. Lastly, we have discussed the applications of porous materials in the form of adsorbents and membranes in commercial processes. We hope that this review will serve as a quick reference for beginners who want to synthesize porous materials with control of pore structure.

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Section: Synthesis Methods Of Porous Materialsmentioning

confidence: 99%

A comprehensive review on the synthesis techniques of porous materials for gas separation and catalysis

et al. 2022

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“…For the purification of feeds containing low concentration C 3 H 8 , porous carbon with an affinity for C 3 H 8 will be an ideal adsorbent, which can directly obtain high-purity C 3 H 6 . For instance, Mendes and co-workers constructed novel carbonaceous adsorbents for C 3 H 8 /C 3 H 6 separation, which had an excellent affinity for C 3 H 8 over C 3 H 6 [102]. The carbonaceous adsorbents were synthesized by using phosphoric acid-treated phenolic resin as a precursor.…”

Section: Ch 4 /Cmentioning

confidence: 99%

Recent Advances in Carbon-Based Adsorbents for Adsorptive Separation of Light Hydrocarbons

Wang

Zhang

et al. 2022

Research

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Light hydrocarbons (LHs) separation is an important process in petrochemical industry. The current separation technology predominantly relies on cryogenic distillation, which results in considerable energy consumption. Adsorptive separation using porous solids has received widespread attention due to its lower energy footprint and higher efficiency. Thus, tremendous efforts have been devoted to the design and synthesis of high-performance porous solids. Among them, porous carbons display exceptional stability, tunable pore structure, and surface chemistry and thus represent a class of novel adsorbents upon achieving the matched pore structures for LHs separations. In this review, the modulation strategies toward advanced carbon-based adsorbents for LHs separation are firstly reviewed. Then, the relationships between separation performances and key structural parameters of carbon adsorbents are discussed by exemplifying specific separation cases. The research findings on the control of the pore structures as well as the quantification of the adsorption sites are highlighted. Finally, the challenges of carbonaceous adsorbents facing for LHs separation are given, which would motivate us to rationally design more efficient absorbents and separation processes in future.

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“…For comparison, we then compared the adsorption capacity on CNP-3 with other reported porous materials. The C 3 H 6 /C 3 H 8 uptake ratio was calculated to be 1.63 (Figure d), which is superior to those of commercial activated carbon materials BAX-AC (1.11, 273 K) and LAC-AC (1.14, 273 K), porous carbon ANPCs (0.98, 298 K), NACs (1.1, 298 K), and carbon molecular sieve, MFF-7 (0.93, 298 K) . Remarkably, CNP-3 showed a high C 3 H 6 uptake (3.03 mmol g –1 ) at 298 K and 1 bar, which is superior to those of reported state-of-the-art porous solid adsorbents such as SC-K (2.2 mmol g –1 ), SCMS (2.54 mmol g –1 ), and Cu(0.4)@MIL-100(Fe) (2.8 mmol g –1 ), and even comparable to that of carbon molecular sieve MFF-8/1300 (3.3 mmol g –1 ) tested under similar conditions (Table S2).…”

mentioning

confidence: 92%

“…The C 3 H 6 / C 3 H 8 uptake ratio was calculated to be 1.63 (Figure 3d), which is superior to those of commercial activated carbon materials BAX-AC (1.11, 273 K) and LAC-AC (1.14, 273 K), 37 porous carbon ANPCs (0.98, 298 K), 42 NACs (1.1, 298 K), 43 and carbon molecular sieve, MFF-7 (0.93, 298 K). 44 Remarkably, CNP-3 showed a high C 3 H 6 uptake (3.03 mmol g −1 ) at 298 K and 1 bar, which is superior to those of reported state-of-theart porous solid adsorbents such as SC-K (2.2 mmol g −1 ), 45 SCMS (2.54 mmol g −1 ), 21 and Cu(0.4)@MIL-100(Fe) (2.8 mmol g −1 ), 46 and even comparable to that of carbon molecular 19,23,25,27,31,34,36,37,40,44−46,48 (e) The correlation between the ultramicropore ratio and the calculated D/r 2 of C 3 H 6 and C 3 H 8 . (f) The relationship between the ultramicropore ratio and the calculated selectivity.…”

mentioning

confidence: 99%

“…C 3 H 6 and C 3 H 8 adsorption isotherms for (a) CNP-1, (b) CNP-2, and (c) CNP-3 at 298 K. (d) Comparison of the C 3 H 6 adsorption capacity and uptake ratio of C 3 H 6 /C 3 H 8 for CNP-3 with reported adsorbents at 298 K. ,,,,,,,,,− , (e) The correlation between the ultramicropore ratio and the calculated D / r 2 of C 3 H 6 and C 3 H 8 . (f) The relationship between the ultramicropore ratio and the calculated selectivity.…”

mentioning

confidence: 99%

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Beyond the Selectivity-Capacity Trade-Off: Ultrathin Carbon Nanoplates with Easily Accessible Ultramicropores for High-Efficiency Propylene/Propane Separation

Wang

et al. 2022

Nano Lett.

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Rapid and highly efficient C 3 H 6 /C 3 H 8 separation over porous carbons is seriously hindered by the trade-off effect between adsorption capacity and selectivity. Here, we report a new type of porous carbon nanoplate (CNP) featuring an ultrathin thickness of around 8 nm and easily accessible ultramicropores (approximately 5.0 Å). The ultrathin nature of the material allows a high accessibility of gas molecules into the interior transport channels, and ultramicropores magnify the difference in diffusion behavior between C 3 H 6 and C 3 H 8 molecules, together ensuring a remarkable C 3 H 6 / C 3 H 8 separation performance. The CNPs show a high and steady C 3 H 6 capacity of up to 3.03 mmol g −1 at 298 K during consecutive dynamic cycles, which is superior to that of the state-of-the-art porous carbons and even porous crystalline materials. In particular, the CNPs show a rapid gas diffusivity, which is 1000 times higher than that of conventional activated carbons. This research provides a promising design principle for addressing the selectivity-capacity trade-off for other types of adsorbent materials.

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Propane selective carbon adsorbents from phenolic resin precursor

Cited by 16 publications

References 75 publications

A comprehensive review on the synthesis techniques of porous materials for gas separation and catalysis

A comprehensive review on the synthesis techniques of porous materials for gas separation and catalysis

Recent Advances in Carbon-Based Adsorbents for Adsorptive Separation of Light Hydrocarbons

Beyond the Selectivity-Capacity Trade-Off: Ultrathin Carbon Nanoplates with Easily Accessible Ultramicropores for High-Efficiency Propylene/Propane Separation

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