Ultrasound-assisted regeneration of activated alumina/water adsorption pair for drying and dehumidification processes

Daghooghi-Mobarakeh, Hooman; Miner, Mark; Wang, Liping; Wang, Robert; Phelan, Patrick E.

doi:10.1016/j.ultras.2022.106769

Cited by 11 publications

(4 citation statements)

References 63 publications

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“…The adsorbents are further regenerated by the desorption process (Duroudier, 2016), which is a critical criterion in adsorption drying systems. Daghooghi-Mobarakeh et al (2022) investigated the application of ultrasound for the regeneration of activated alumina/water adsorbents during dehydration. They found that the highest desorption energy savings (approximately 27%) were achieved when the ultrasound power was set to 0.2 W. These adsorbents are also used to dehumidify air by accelerating mass transfer during the dehydration process (Daghooghi-Mobarakeh et al, 2022;Djaeni et al, 2021).…”

Section: Adsorption Drying or Dehumidified Air Flowingmentioning

confidence: 99%

“…Daghooghi-Mobarakeh et al (2022) investigated the application of ultrasound for the regeneration of activated alumina/water adsorbents during dehydration. They found that the highest desorption energy savings (approximately 27%) were achieved when the ultrasound power was set to 0.2 W. These adsorbents are also used to dehumidify air by accelerating mass transfer during the dehydration process (Daghooghi-Mobarakeh et al, 2022;Djaeni et al, 2021). Djaeni et al (2021) comprehensively reviewed the importance of dehumidified air in food dehydration using different types of adsorbents, along with the advantages and disadvantages of each adsorbent.…”

Section: Adsorption Drying or Dehumidified Air Flowingmentioning

confidence: 99%

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Exploring conventional and emerging dehydration technologies for slurry/liquid food matrices and their impact on porosity of powders: A comprehensive review

Sultana,

Aghajanzadeh,

Thibault

et al. 2024

Comp Rev Food Sci Food Safe

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The contribution of dehydration to the growing market of food powders from slurry/liquid matrices is inevitable. To overcome the challenges posed by conventional drying technologies, several innovative approaches have emerged. However, industrial implementation is limited due to insufficient information on the best‐suited drying technologies for targeted products. Therefore, this review aimed to compare various conventional and emerging dehydration technologies (such as active freeze, supercritical, agitated thin‐film, and vortex chamber drying) based on their fundamental principles, potential applications, and limitations. Additionally, this article reviewed the effects of drying technologies on porosity, which greatly influence the solubility, rehydration, and stability of powder. The comparison between different drying technologies enables informed decision‐making in selecting the appropriate one. It was found that active freeze drying is effective in producing free‐flowing powders, unlike conventional freeze drying. Vortex chamber drying could be considered a viable alternative to spray drying, requiring a compact chamber than the large tower needed for spray drying. Freeze‐dried, spray freeze‐dried, and foam mat‐dried powders exhibit higher porosity than spray‐dried ones, whereas supercritical drying produces nano‐porous interconnected powders. Notably, several factors like glass transition temperature, drying technologies, particle aggregation, agglomeration, and sintering impact powder porosity. However, some binders, such as maltodextrin, sucrose, and lactose, could be applied in controlled agglomeration to enhance powder porosity. Further investigation on the effect of emerging technologies on powder properties and their commercial feasibility is required to discover their potential in liquid drying. Moreover, utilizing clean‐label drying ingredients like dietary fibers, derived from agricultural waste, presents promising opportunities.

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Section: Adsorption Drying or Dehumidified Air Flowingmentioning

confidence: 99%

Section: Adsorption Drying or Dehumidified Air Flowingmentioning

confidence: 99%

Exploring conventional and emerging dehydration technologies for slurry/liquid food matrices and their impact on porosity of powders: A comprehensive review

Sultana,

Aghajanzadeh,

Thibault

et al. 2024

Comp Rev Food Sci Food Safe

View full text Add to dashboard Cite

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“…The final cycle experiment (7 𝑡ℎ cycle) still effectively decreases MG dye concentration to 48.17% (see Figure 8). The regeneration works reached by adsorption-desorption mechanism using aquadest as a solvent and ultrasonic instrument to ensure the disintegration of dye absorbed from absorbent by physical bonding termination (Daghooghi-Mobarakeh et al, 2022). This condition expected a sufficient simple way to regenerate biochar-based adsorbent using a water-based solvent.…”

Section: Figure 6 Kinetic Adsorption Analysis On Composited Biocharmentioning

confidence: 99%

Mangan Oxide-assisted in Biochar Improvement and Application in Malachite Green Removal

Emilia,

Hakim,

Mohadi

2023

IJMR

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The adsorption features of rice husk biochar (BC) have been improved by structure refinement due to being composited with manganese oxide (MnO). The composite material formed under low energy (temperature) was identified by X-ray Diffraction (XRD), Fourier Transform Infra-red (FTIR), and Brunauer-Emmet-Teller (BET) Surface Area instrumentation. The composite of BC/MnO analysis of XRD was specialized at 9.48° (110) and 31.42° (111). Functional group investigation of FTIR on BC/MnO composite was detected at 349 cm-1 and 401 cm-1 as manganese oxide vibration on biochar. The improvement in specific surface area is evidenced by BET surface area analysis, with the highest result at 96.047 m2/g. Several analyses on the adsorption work concluded that malachite green adsorption on BC/MnO composite follows the pseudo-second-order model and the Freundlich scheme under spontaneous reaction. Additionally, calculation in adsorption parameters resulted in an adsorption maximum capacity of about 79.365 mg/g with regeneration effectiveness up to 48.170% at the final of the seventh cycle.

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“…Therefore, adsorbent materials based on solid–gas reactions are more widely used in various environments. Up to now, a variety of materials are used to remove and retain pollutant gas, including zeolites, metal–organic frameworks (MOFs), porous alumina, resin, boron nitride, and active carbon. , Among them, due to the excellent specific surface area, low price, wide range of pore size and tunable chemical properties, , active carbons are still the main adsorbent in the field of air purification.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Adsorption of SO₂ and NH₃ by Activated Carbon with Monometallic Active Sites at Low Concentration under Room Temperature

Zeng,

Guo,

Zhai

2024

ACS Omega

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SO 2 and NH 3 are toxic compounds and are the main sources of airborne molecular contaminants (AMCs). Even at low concentrations, they can cause equipment corrosion and reduce product yield. Therefore, it is crucial to develop a combined SO 2 and NH 3 capture material with a simple process and a high adsorption capacity. In this study, dynamic adsorption breakthrough experiments were conducted at 23 °C under an air pollutant concentration of 90 ppm. The synergistic adsorption results showed that Cu/AC-0.05 had a high adsorption capacity of 1.03 mmol of SO 2 /g and 1.45 mmol of NH 3 /g. Furthermore, to confirm the rationality of the modification method, characterization methods such as BET, SEM-EDX, XRD, and TG-DSC were used to study the new adsorbent and spent adsorbent. The results showed that copper was successfully attached to the activated carbon and distributed uniformly. In this study, efficient coremoval performance of SO 2 and NH 3 was achieved by modifying single metal active sites. Through a comprehensive analysis of the characterization results, the surface reaction mechanism of SO 2 and NH 3 on the prepared material was further determined. This work provides a feasible option for a highly efficient adsorbent for both SO 2 and NH 3 capture at low concentrations under room temperature.

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Ultrasound-assisted regeneration of activated alumina/water adsorption pair for drying and dehumidification processes

Cited by 11 publications

References 63 publications

Exploring conventional and emerging dehydration technologies for slurry/liquid food matrices and their impact on porosity of powders: A comprehensive review

Exploring conventional and emerging dehydration technologies for slurry/liquid food matrices and their impact on porosity of powders: A comprehensive review

Mangan Oxide-assisted in Biochar Improvement and Application in Malachite Green Removal

Experimental Study on Adsorption of SO₂ and NH₃ by Activated Carbon with Monometallic Active Sites at Low Concentration under Room Temperature

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Ultrasound-assisted regeneration of activated alumina/water adsorption pair for drying and dehumidification processes

Cited by 11 publications

References 63 publications

Exploring conventional and emerging dehydration technologies for slurry/liquid food matrices and their impact on porosity of powders: A comprehensive review

Exploring conventional and emerging dehydration technologies for slurry/liquid food matrices and their impact on porosity of powders: A comprehensive review

Mangan Oxide-assisted in Biochar Improvement and Application in Malachite Green Removal

Experimental Study on Adsorption of SO2 and NH3 by Activated Carbon with Monometallic Active Sites at Low Concentration under Room Temperature

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Experimental Study on Adsorption of SO₂ and NH₃ by Activated Carbon with Monometallic Active Sites at Low Concentration under Room Temperature