Synergistic effect of dual Brønsted acidic deep eutectic solvents for oxidative desulfurization of diesel fuel

Jiang, Wei; Zhu, Kun; Li, Hongping; Zhu, Linhua; Hua, Mingqing; Xiao, Jin; Wang, Chao; Yang, Zhenzhen; Chen, Guang‐Ying; Zhu, Wenshuai; Dai, Sheng

doi:10.1016/j.cej.2020.124831

Cited by 125 publications

(42 citation statements)

References 64 publications

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“…For the preparation of model fuel, the aromatic sulfur compounds, hexadecane, and dodecane were mixed 42 . Subsequently, the initial sulfur concentrations of the resulting model fuels with DBT were 25, 50, 75, 100, 500, and 1000 ppm, respectively.…”

Section: Methodsmentioning

confidence: 99%

High‐performance adsorptive desulfurization by ternary hybrid boron carbon nitride aerogel

et al. 2021

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Separation of aromatic organosulfur compounds is vital for upgrading the feed to clean fuel products, however, it remains a formidable challenge for the present adsorbents. Herein, a series of novel aerogel‐like boron carbon nitride (BCN) with three‐dimensional interconnected porous networks were fabricated via a hydrogel template and freeze‐casting strategy. The as‐prepared aerogel‐like BCN had a variable carbon content and a flexible size of graphene domain on its porous structure. The optimal BCN aerogel represents the top‐level of adsorptive desulfurization (ADS) capacity for aromatic organosulfur compounds (30.8 mg S/g adsorbent), strikingly higher than the state‐of‐the‐art aerogels adsorbents (17.1 mg S/g adsorbent) reported under similar conditions. A selective adsorption for dibenzothiophene in the presence of aromatic hydrocarbons, nitrogen compounds were also achieved on BCN aerogel. The adsorption isotherm and XPS measurement reveal heterogeneous adsorption on the BCN aerogel via π–π and Lewis acid–base interactions.

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Section: Methodsmentioning

confidence: 99%

High‐performance adsorptive desulfurization by ternary hybrid boron carbon nitride aerogel

et al. 2021

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“…A good method for increasing the desulfurization rate consists of introducing a complementary solvent extraction step (Jiang et al, 2020). This step can be performed using acetonitrile at controlled temperature (i.e., 50 C).…”

Section: Solvent Extractionmentioning

confidence: 99%

The production of clean diesel fuel by facile sun light photocatalytic desulfurization process using Cd-based diacetate as a novel liquid photocatalyst

Morshedy

Tawfik

Hashem

et al. 2021

Journal of Cleaner Production

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Photocatalysis is one of the promising processes for developing greener fuels. This work compares a new liquid Cd-based diacetate and CdOx nanoparticles for photo-desulfurization of diesel. Various tools, including XRD, XPS, TEM, 1 H& 13 C NMR, FTIR, reflectance, and photoluminescence, were used for char-acterizing the materials. Different parameters, such as irradiation type, catalyst dosage, oxidizing agents, and solvent extraction were applied. The results showed that, under visible light irradiation with a linear halogen lamp (LHL), Cd diacetate reveals promising sulfur removal (98.5%) for 2 h compared with CdOx NPs (97.7%) for 3 h in the presence of H 2 O 2 and acetic acid as oxidizing agents and acetonitrile as a solvent. Under sunlight, sulfur content decreased from 11500 ppm to 65 ppm (removal exceeds 99.4% for the Cd diacetate against 98.0% for CdOx NPs) with high-quality properties (aniline point: 91.8 C, diesel index: 79.8). The photo-luminance activity of Cd diacetate (low intensity) allows reducing electron/hole pair recombination, which maintains stable photocatalytic activity with enhanced visible light elimi-nation of organosulfur compounds for economical, clean fuel production associated with pollution control. The catalyst recycling and the spontaneous regeneration of the solvent make the process very attractive. Cd diacetate was successfully recycled over six cycles.

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“…Hence, TBAB/PEG-200 DESs with different molar ratios were synthesized by using PEG-200 as the HBD and TBAB as the HBA and characterized by Fourier transform infrared (FT-IR) spectroscopy and 1 H nuclear magnetic resonance ( 1 H NMR) spectroscopy. According to the mechanism of extractive coupled oxidative desulfurization, [42][43][44] the DESs were used in desulfurization by a step reaction. In order to test the desulfurization performance of DES TBAB/PEG-200, the effects of different temperatures, O/S molar ratios, DES/oil volume ratios, additives and sulfur compounds on the desulfurization efficiency and the capacities of regenerating and recycling were investigated with control variates by adding extractant and oxidant to the reactor at different times.…”

Section: Introductionmentioning

confidence: 99%

Optimization study on deep extractive oxidative desulfurization with tetrabutylammonium bromide/polyethylene glycol DES

Guo

Liu

et al. 2021

RSC Adv.

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Synergistic effect of dual Brønsted acidic deep eutectic solvents for oxidative desulfurization of diesel fuel

Cited by 125 publications

References 64 publications

High‐performance adsorptive desulfurization by ternary hybrid boron carbon nitride aerogel

High‐performance adsorptive desulfurization by ternary hybrid boron carbon nitride aerogel

The production of clean diesel fuel by facile sun light photocatalytic desulfurization process using Cd-based diacetate as a novel liquid photocatalyst

Optimization study on deep extractive oxidative desulfurization with tetrabutylammonium bromide/polyethylene glycol DES

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