Adsorption Equilibria of Toluene and Gasoline Vapors on Activated Carbon

Ryu, Young Ki; Lee, Hyun Jeong; Yoo, Hee Koo; Lee, Chang Ha

doi:10.1021/je020044i

Cited by 40 publications

(25 citation statements)

References 8 publications

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“…The highest adsorption capacity for phenolic and indolic compounds observed for MOF-199 may be due to high surface area and presence of a large number of un-coordinated copper (II) sites, known to be as Lewis acids, demonstrating their efficacy as adsorption sites 23 . AC showed the best adsorption for the aromatic compounds compared to zeolite and MOF-199 because of the nonpolar nature of its surface 48 . However, AC showed the highest adsorption performance for almost all VOCs at 50% breakthrough.…”

Section: Resultsmentioning

confidence: 99%

Performance comparison of MOF and other sorbent materials in removing key odorants emitted from pigpen slurry

Ahmed

Deep

Kwon

et al. 2016

Sci Rep

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A batch-type dynamic headspace (HS) system was used to generate vapor-phase volatile organic compounds (VOCs) from a pigpen slurry sample. Sorptive removal capability of MOF-199 and other sorbents (zeolite (ZL) and activated carbon (AC)) was assessed against a total of 13 slurry-borne odorants ((methyl ethyl ketone (MEK), isobutyl alcohol (i-BuAl), benzene (B), toluene (T), p-xylene (p-X), m-xylene (m-X), o-xylene (o-X), styrene (S), o-cresol (o-C), phenol (PhAl), p-cresol (p-C), indole (ID), and skatole (SK)). Adsorption capacity of MOF-199 and two sorbents, when assessed for the 13 odorants at a 10% breakthrough volume (BTV), was 22.6 ± 42.3, 0.70 ± 1.08, and 11.0 ± 18.3 μg g−1, respectively. The adsorption capacity (μg g−1) assessed at 10% BTV showed the superiority of MOF-199 towards phenolic and indolic compounds (such as o-C (0.31 ± 0.04), PhAl (61.6 ± 4.98), p-C (140 ± 7.95), ID (27.8 ± 2.23), and SK (63.9 ± 1.55)), demonstrating the feasibility of MOF as sorption media for treating certain nuisance components.

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Section: Resultsmentioning

confidence: 99%

Performance comparison of MOF and other sorbent materials in removing key odorants emitted from pigpen slurry

Ahmed

Deep

Kwon

et al. 2016

Sci Rep

View full text Add to dashboard Cite

show abstract

“…Also, porous materials that contain nanoscale porous material have been widely used to eliminate VOCs through their excellent adsorption capacities [ 10 , 11 ]. Furthermore, porous materials are advantageous in adsorption due to their high specific surface area and porosity [ 12 , 13 ]. The porosity and specific surface area of a material are critical factors in determining their adsorption performance for pollutants [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Toluene Adsorption Performance of Mortar Adhesives Using Porous Carbon Material as Adsorbent

Chang

Jeong

et al. 2017

Materials

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Porous carbon materials are advantageous in adsorbing pollutants due to their wide range of specific surface areas, pore diameter, and pore volume. Among the porous carbon materials in the current study, expanded graphite, xGnP, xGnP C-300, xGnP C-500, and xGnP C-750 were prepared as adsorbent materials. Brunauer–Emmett–Teller (BET) analysis was conducted to select the adsorbent material through the analysis of the specific surface area, pore size, and pore volume of the prepared porous carbon materials. Morphological analysis using SEM was also performed. The xGnP C-500 as adsorbent material was applied to a mortar adhesive that is widely used in the installation of interior building materials. The toluene adsorption performances of the specimens were evaluated using 20 L small chamber. Furthermore, the performance of the mortar adhesive, as indicated by the shear bond strength, length change rate, and water retention rate, was analyzed according to the required test method specified in the Korean standards. It was confirmed that for the mortar adhesives prepared using the xGnP C-500 as adsorbent material, the toluene adsorption performance was excellent and satisfied the required physical properties.

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“…Adsorption treatment systems using activated carbon are among the most efficient methods used for the removal and recovery of VOCs that are released into the atmosphere [3]. Ongoing studies are currently being conducted to further improve their adsorption capacities; Ryu et al [6] recently studied the adsorption capacities of activated carbon for toluene. However, the world consumption and price of activated carbon has steadily increased, with the demand expected to further increase due to new mercury control legislation in UN member countries.…”

Section: Introductionmentioning

confidence: 99%

Effect of vacuum regeneration of activated carbon on volatile organic compound adsorption

Pak

Jeon

2016

Environmental Engineering Research

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Vacuum swing adsorption (VSA) is a promising treatment method for volatile organic compounds (VOCs). This study focuses on a VSA process for regenerating activated carbon spent with VOCs, and then investigates its adsorption capacities. Toluene was selected as the test VOC molecule, and the VSA regeneration experiments results were compared to the thermal swing adsorption process. Cyclic adsorption-desorption experiments were performed using a lab-scale apparatus with commercial activated carbon (Samchully Co.). The VSA regeneration was performed in air (0.5 L/min) at 363.15 K and 13,332 Pa. The comparative results depicted that in terms of VSA regeneration, it was found that after the fifth regeneration, about a 90% regeneration ratio was maintained. These experiments thus confirm that the VSA regeneration process has good recovery while operating at low temperatures (363.15 K) and 13,332 Pa.

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Adsorption Equilibria of Toluene and Gasoline Vapors on Activated Carbon

Cited by 40 publications

References 8 publications

Performance comparison of MOF and other sorbent materials in removing key odorants emitted from pigpen slurry

Performance comparison of MOF and other sorbent materials in removing key odorants emitted from pigpen slurry

Evaluation of Toluene Adsorption Performance of Mortar Adhesives Using Porous Carbon Material as Adsorbent

Effect of vacuum regeneration of activated carbon on volatile organic compound adsorption

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