Real heavy crude oil desulfurization onto nanoporous activated carbon implementing batch adsorption process: equilibrium, kinetics, and thermodynamic studies

Al-Khodor, Yusra A. Abd; Albayati, Talib M.

doi:10.1007/s42250-022-00482-6

Cited by 25 publications

(2 citation statements)

References 36 publications

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“…Two reflection peaks at 2θ less than 3° and a string of sporadic weak peaks in the range 3.5–5.5° are indexed to the Ia3d cubic structure. When compared to comparable peaks described in the literature, the peaks acquired in our investigation match those reported there quite well 41 . The outcomes shown in Table 1 illustrate how MCM-48 has a periodic ordered structure.…”

Section: Resultssupporting

confidence: 88%

Applying MCM-48 mesoporous material, equilibrium, isotherm, and mechanism for the effective adsorption of 4-nitroaniline from wastewater

Ali

Harharah

Salih³

et al. 2023

Sci Rep

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In this work, the MCM-48 mesoporous material was prepared and characterized to apply it as an active adsorbent for the adsorption of 4-nitroaniline (4-Nitrobenzenamine) from wastewater. The MCM-48 characterizations were specified by implementing various techniques such as; scanning electron microscopy (SEM), Energy dispersive X-ray analysis (EDAX), X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET) surface area, pore size distribution (PSD), and Fourier transform infrared (FTIR). The batch adsorption results showed that the MCM-48 was very active for the 4-nitroaniline adsorption from wastewater. The adsorption equilibrium results were analyzed by applying isotherms like Langmuir, Freundlich, and Temkin. The maximum experimental uptake according to type I Langmuir adsorption was found to be 90 mg g−1 approximately. The Langmuir model with determination coefficient R2 = 0.9965 is superior than the Freundlich model R2 = 0.99628 and Temkin model R2 = 0.9834. The kinetic adsorption was investigated according to pseudo 1st order, pseudo 2nd order, and Intraparticle diffusion model. The kinetic results demonstrated that the regression coefficients are so high R2 = 0.9949, that mean the pseudo 2nd order hypothesis for the adsorption mechanism process appears to be well-supported. The findings of adsorption isotherms and kinetics studies indicate the adsorption mechanism is a chemisorption and physical adsorption process.

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Section: Resultssupporting

confidence: 88%

Applying MCM-48 mesoporous material, equilibrium, isotherm, and mechanism for the effective adsorption of 4-nitroaniline from wastewater

Ali

Harharah

Salih³

et al. 2023

Sci Rep

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“…MB is used in various fields, such as biology, medicine, and chemistry 12 . Wastewater is treated using different methods, such as membrane separation 13 , 14 , electrocoagulation 15 , 16 , flocculation 17 , precipitation 18 , ozonation 19 , and adsorption 20 , 21 . These well-established methods frequently fail to lower dye concentrations to desirable levels and are not economical for dye removal.…”

Section: Introductionmentioning

confidence: 99%

Olive stone as an eco-friendly bio-adsorbent for elimination of methylene blue dye from industrial wastewater

Alardhi,

Salih,

Ali

et al. 2023

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Adsorbents synthesized by activation and nanoparticle surface modifications are expensive and might pose health and ecological risks. Therefore, the interest in raw waste biomass materials as adsorbents is growing. In batch studies, an inexpensive and effective adsorbent is developed from raw olive stone (OS) to remove methylene blue (MB) from an aqueous solution. The OS adsorbent is characterized using scanning electron microscopy (SEM), Fourier Transform Infra-Red (FTIR), and Brunauer–Emmett–Teller (BET) surface area. Four isotherms are used to fit equilibrium adsorption data, and four kinetic models are used to simulate kinetic adsorption behavior. The obtained BET surface area is 0.9 m2 g−1, and the SEM analysis reveals significant pores in the OS sample that might facilitate the uptake of heavy compounds. The Langmuir and Temkin isotherm models best represent the adsorbtion of MB on the OS, with a maximum monolayer adsorption capacity of 44.5 mg g−1. The best dye color removal efficiency by the OS is 93.65% from an aqueous solution of 20 ppm at the OS doses of 0.2 g for 90 min contact time. The OS adsorbent serves in five successive adsorption cycles after a simple filtration-washing-drying process, maintaining MB removal efficiency of 91, 85, 80, and 78% in cycles 2, 3, 4, and 5, respectively. The pseudo second-order model is the best model to represent the adsorption process dynamics. Indeed, the pseudo second-order and the Elovich models are the most appropriate kinetic models, according to the correlation coefficient (R2) values (1.0 and 0.935, respectively) derived from the four kinetic models. The parameters of the surface adsorption are also predicted based on the mass transfer models of intra-particle diffusion and Bangham and Burt. According to the thermodynamic analysis, dye adsorption by the OS is endothermic and spontaneous. As a result, the OS material offers an efficient adsorbent for MB removal from wastewater that is less expensive, more ecologically friendly, and economically viable.

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Enhanced adsorption desulfurization performance over modified zeolite clinoptilolite for a model fuel in a competitive process

et al. 2023

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Real heavy crude oil desulfurization onto nanoporous activated carbon implementing batch adsorption process: equilibrium, kinetics, and thermodynamic studies

Cited by 25 publications

References 36 publications

Applying MCM-48 mesoporous material, equilibrium, isotherm, and mechanism for the effective adsorption of 4-nitroaniline from wastewater

Applying MCM-48 mesoporous material, equilibrium, isotherm, and mechanism for the effective adsorption of 4-nitroaniline from wastewater

Olive stone as an eco-friendly bio-adsorbent for elimination of methylene blue dye from industrial wastewater

Enhanced adsorption desulfurization performance over modified zeolite clinoptilolite for a model fuel in a competitive process

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