The nature and kinetics of the adsorption of dibenzothiophene in model diesel fuel on carbonaceous materials loaded with aluminum oxide particles

Nazal, Mazen K.; Khaled, Mazen; Atieh, Muataz Ali; Aljundi, Isam H.; Oweimreen, G. A.; Abulkibash, A. M.

doi:10.1016/j.arabjc.2015.12.003

Cited by 34 publications

(11 citation statements)

References 38 publications

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“…It was discovered that molybdenum modi ed nitrogen doped activated carbon AC-N-Mo showed a moderately higher adsorption capacities when compared with adsorbents that were reported in a similar research papers (Ganiyu et al 2016;. Whereas, some authors have reported a higher adsorption capacities for DBT as compared to this current study (Nazal et al 2019;Yaseen et al 2021).…”

Section: Adsorption Evaluation Of the Developed Adsorbentssupporting

confidence: 45%

“…This sulfur adsorption a nity of the adsorbent could be ascribed not only to the closer size of the DBT molecules to the size of the adsorbent's pores thereby facilitated the preferential trapping of DBT into the adsorbent but also include the fact that DBT has higher molar mass, boiling point dipole moment and aromaticity compared to naphthalene resulting to π-π interactions and stronger van der Waals with the adsorbent surface. It is also worth mentioning that the basic properties of DBT also played a crucial role in that there exist acid-base interaction between DBT and molybdenum oxide (Lewis acid) on the sorbent surface thereby resulting in elevated adsorption capacity breakthrough of DBT (Nazal et al 2015). To further understand the inhibiting effects of aromatic on the studied adsorbent, the same vol % of toluene and naphthalene were added into DBT solution and was investigated.…”

Section: Effect Of Aromatics On Dbt Removalmentioning

confidence: 99%

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Synergy Effect of Nitrogen and Molybdenum on Activated Carbon Matrix for Selective Adsorptive Desulfurization: Insights into Surface Chemistry Modification

Azeez

Tanimu

Alhooshani

et al. 2021

Preprint

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This study reports the synthesis of mesoporous metal-modified nitrogen doped activated carbon (AC-N-Mo) from date seeds by ZnCl2 activation and its applicability for selective adsorptive desulfurization of dibenzothiophene (DBT). The AC-N-Mo exhibits higher adsorption capacity for DBT at 100 mg-S/L with the maximum value of 99.7% corresponding to 19.94 mg-S/g at room temperature than the unmodified carbon with 17.96 mg-S/g despite its highest surface area and pore volume of 1027 m2g− 1 and 0.55 cm3g− 1 respectively. The adsorption capacity breakthrough follows the order AC-N-Mo > AC-Mo > AC > AC-N. AC-N-Mo also displayed excellent selectivity in the presence of aromatics (toluene, naphthalene and 1-methylisoquinoline). The enhancement in the DBT uptake capacities of AC-N-Mo is attributed to synergy effect of nitrogen heteroatom that aid well dispersion of molybdenum nanoparticles on carbon surface thereby improving its surface chemistry and promising textural characteristics. The kinetic studies showed that the DBT adsorption proceeds via pseudo-second order kinetics while the isotherm revealed that both Freundlich and Langmuir fit the data but Freundlich fit the data more accurately for the best performing adsorbent. The physico-chemical properties (surface area, pore volume, carbon content, particle size etc.) of as-prepared adsorbents namely; AC, AC-N, AC-N-Mo and AC-Mo were characterized by N2- physisorption, X-ray Diffraction (XRD), X-ray Photoelectron Spectroscopy (XPS), Scanning Electron Spectroscopy/Energy Dispersive Spectroscopy (SEM/EDS), Raman Spectroscopy (RS), Fourier Transform Infrared Spectroscopy (FTIR) and Ammonia-Temperature-Programmed Desorption (NH3-TPD).

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Section: Adsorption Evaluation Of the Developed Adsorbentssupporting

confidence: 45%

Section: Effect Of Aromatics On Dbt Removalmentioning

confidence: 99%

Synergy Effect of Nitrogen and Molybdenum on Activated Carbon Matrix for Selective Adsorptive Desulfurization: Insights into Surface Chemistry Modification

Azeez

Tanimu

Alhooshani

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…However, di erent strategies can lead to the development of adsorbents with high adsorption capacity, by taking advantage of the intrinsic properties of graphene and graphene oxide. ese strategies consist of using graphene or graphene oxide as a support for di erent adsorbents, such as metal oxides [24,25,[27][28][29] or metal-organic frameworks (MOF) [26,30,31]; this synergy can boost their adsorption capacity. Song et al investigated the adsorption capacity of reduced graphene oxide/zinc oxide composites (rGO/ZnO) towards H 2 S [24].…”

Section: Graphene Applicationsmentioning

confidence: 99%

“…Nazal et al prepared hybrids of GO with Al 2 O 3 , which has high thermal stability and can act as a Lewis acid (electron acceptor) due to its unsaturated surface [29]. e authors tested it for the adsorption of DBT from model fuel (n-hexane) and compared its performance to the adsorption capacities of carbon nanotubes loaded with Al 2 O 3 and of activated carbon loaded with Al 2 O 3 .…”

Section: Graphene Applicationsmentioning

confidence: 99%

Carbon Nanomaterials for the Adsorptive Desulfurization of Fuels

Svinterikos

Zuburtikudis

Al-Marzouqi

2019

Journal of Nanotechnology

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The increasing demand for cleaner fuels and the recent stringent regulations of commercial fuel specifications have driven the research of alternative methods to upgrade the current industrial desulfurization technology. Adsorptive desulfurization, the removal of refractory sulfur compounds using appropriate selective tailor-made adsorbents, has shown up as a promising alternative in the recent years. Carbon nanomaterials, namely, graphene, graphene oxide, carbon nanotubes and carbon nanofibers, show a significant potential as desulfurization adsorbents. Their surface area and porosity, their ability of easy functionalization, and their suitability to serve as a support of different types of adsorbents have rendered them attractive candidates for this purpose. In this review, after a presentation of the current industrial desulfurization practice and its limitations, the structure and properties of the carbon nanomaterials of interest will be described, followed by a detailed account of their applications in adsorptive desulfurization. The major literature findings and conclusions will be presented and discussed as a road map for future research in the field.

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“…In the atmosphere, SO X may further react with water (H 2 O) to form sulfurous (H 2 SO 3 ) and sulfuric acid (H 2 SO 4 ), leading to acid rain, causing harmful effects such as corrosion of metallic parts, damage to woodland and river water, etc. [1]. SO X in air is also associated with various health issues, such as irritation of the nose, throat and eyes, and cough, while a higher level is linked with asthma, bronchitis, and heart disease [2].…”

Section: Introductionmentioning

confidence: 99%

Desulfurization studies of liquid fuels through nickel-modified porous materials from Pongamia pinnata

Zaidi

Sorokhaibam

2020

Appl Petrochem Res

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A new biomass-based carbonaceous adsorbent has been developed from Pongamia pinnata and its effect upon nickel modification- and adsorption-coupled ultrasonication was investigated. Adsorption experiment of the model oil constituting 50 ppm dibenzothiophene in cyclohexane showed the maximum capacity as 8.11, 13.36, and 17.15 mg·g−1 for the commercial carbon DARCO, virgin bio-adsorbent PP, and nickel-modified adsorbent Ni@PP, respectively, with the time required for attaining equilibrium being the fastest in Ni@PP (120 min). The significant effect of ultrasonication was in attaining faster kinetics where ~ 96–98% removal was achieved in only 30 min. Also, the developed adsorbents had a very good specific surface area of 915 and 677 m2·g−1, respectively, for PP and Ni@PP. Investigation of the effect of higher initial sulfur concentration (200 ppm) indicated the significance of Ni modification, where a very high capacity of 66.18 mg·g−1 for Ni@PP was attained against 30.90 mg·g−1 for PP and 13.18 mg·g−1 for DARCO. Ni@ PP was also effective for the simultaneous removal of more refractory sulfur fractions from multicomponent model fuel systems and exhibited good regeneration ability till the fourth cycles or more. Cost estimation showed that the developed adsorbents are relatively ten times cheaper than commercial carbon, while the fixed-bed study indicated a breakthrough time of 250 min and 270 min for PP and Ni@PP, respectively. Graphic abstract

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The nature and kinetics of the adsorption of dibenzothiophene in model diesel fuel on carbonaceous materials loaded with aluminum oxide particles

Cited by 34 publications

References 38 publications

Synergy Effect of Nitrogen and Molybdenum on Activated Carbon Matrix for Selective Adsorptive Desulfurization: Insights into Surface Chemistry Modification

Synergy Effect of Nitrogen and Molybdenum on Activated Carbon Matrix for Selective Adsorptive Desulfurization: Insights into Surface Chemistry Modification

Carbon Nanomaterials for the Adsorptive Desulfurization of Fuels

Desulfurization studies of liquid fuels through nickel-modified porous materials from Pongamia pinnata

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