Application of statistical analysis for optimizing of column flotation with pine oil for oil shale cleaning

Sobhy, Ahmed; Yehia, Ahmed; Hosiny, F. I. El; Ibrahim, Suzan S.; Amin, Rasha

doi:10.1080/19392699.2020.1832478

Cited by 4 publications

(3 citation statements)

References 27 publications

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“…The carbonaceous forms or organic-rich forms of bentonite (oil shale) were reported in nature in significant reserves and did not receive considerable studies about its qualification as a precursor for acidic heterogeneous catalysts. The carbonaceous form of bentonite is of organic/inorganic hybrid properties as it composed of laminated clay layers intercalated with organic matter that are commonly soluble forms of bitumen and insoluble kerogen. , Therefore, it was expected that the possible acidifications or sulfonation for it will result in a promising catalyst in which the sulfonated carbonaceous materials supported within the layers of bentonite that is of very high surface area and significant hydrophilic properties. Moreover, the catalyst will possess complex properties including sulfonated organic and inorganic components which will be of different catalytic behaviors and expected high activity.…”

Section: Introductionmentioning

confidence: 99%

Sulfonation of Natural Carbonaceous Bentonite as a Low-Cost Acidic Catalyst for Effective Transesterification of Used Sunflower Oil into Diesel; Statistical Modeling and Kinetic Properties

et al. 2021

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Bentonite sample enriched in organic matters (oil shale) was functionalized with −SO3H sulfonated carbonaceous bentonite (S-CB) by sulfonation process as a low-cost and effective acidic catalyst for the transesterification spent sunflower oil (SFO). The sulfonation effect was followed by several analytic techniques including X-ray diffraction, Fourier transform infrared, and scanning electron microscopy analysis. The catalytic performance of the sulfonated product was evaluated based on a statistical design which was built according to the response surface methodology and the central composite rotatable design. Using the S-CB acidic catalyst in the transesterification of spent SFO resulted in an actual biodiesel yield of 96% at studied conditions of 85 min at reaction interval, 50 °C as temperature,15:1 as methanol/oil ratio, and 3.5 wt % as S-CB loading. Moreover, the optimization function suggested enhancement to obtained yield up to 97.9% by selecting the values of temperature at 62 °C, the time at 98.5 min, the methanol/SFO ratio at 14.4:1, and S-CB loading at 3.4 wt %. The technical evaluation of the SFO biodiesel reflected the suitability of the product to be used as biofuels according to international standards. The kinetic behavior of the SFO transesterification reaction over S-CB is of pseudo-first order properties and of low activation energy. Finally, the synthetic S-CB as a solid acidic catalyst is of significant reusability and was reused five times with remarkable biodiesel yields.

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Section: Introductionmentioning

confidence: 99%

Sulfonation of Natural Carbonaceous Bentonite as a Low-Cost Acidic Catalyst for Effective Transesterification of Used Sunflower Oil into Diesel; Statistical Modeling and Kinetic Properties

et al. 2021

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“…8. As the kerosene column tended to shrink, the w / h value decreased with increasing ion concentrations, indicating that the interfacial tension between the kerosene and solution became greater as the ion concentration increased, i.e., the extrusion effect on the kerosene column was stronger 37 …”

Section: Resultsmentioning

confidence: 99%

“…As the kerosene column tended to shrink, the w/h value decreased with increasing ion concentrations, indicating that the interfacial tension between the kerosene and solution became greater as the ion concentration increased, i.e., the extrusion effect on the kerosene column was stronger. 37 Profile analysis of kerosene column The curved interface of the kerosene column and the water was defined as catenoid and shown in Fig. 9.…”

Section: Effect Of Ion Concentration On Kerosene Droplet Sizementioning

confidence: 99%

Effect of inevitable ions on kerosene droplet formation and evolution

Zhang,

Zhu,

et al. 2024

J of Chemical Tech & Biotech

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Understanding the effect of ions on collector generation characteristics is crucial for adjusting the oil/water interface and enhancing mineral flotation. We conducted a study of kerosene droplet generation process in the presences of NaCl, MgCl2 and AlCl3 using the high‐speed motion acquisition system. The results showed that the generation process of kerosene droplet could be divided into two stages that droplet expansion and column contraction according to the variation of the droplet width. With the increasing capillary inner diameter, the generation time of the kerosene droplet increased while the w/h value (column width/column height) of the kerosene column decreased. Until the w/h value decreased to 0, the droplet column ruptured and the droplet separated from the capillary. As the ion valence increased, the equivalent diameter (d) of the kerosene droplet increased due to the ionic hydration and followed the order dAl3+ > dMg2+ > dNa+. Furthermore, as the ion concentration increased, the equivalent diameter increased with the same capillary inner diameter, and the w/h value decreased. A model of the kerosene column height and capillary inner diameter (R) was established to predict the characteristics of the generating kerosene droplet.This article is protected by copyright. All rights reserved.

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Development of magnetic flotation hybrid separation process for cleaner coal preparation

Sobhy,

Lu,

Chen

et al. 2023

Minerals Engineering

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Application of statistical analysis for optimizing of column flotation with pine oil for oil shale cleaning

Cited by 4 publications

References 27 publications

Sulfonation of Natural Carbonaceous Bentonite as a Low-Cost Acidic Catalyst for Effective Transesterification of Used Sunflower Oil into Diesel; Statistical Modeling and Kinetic Properties

Sulfonation of Natural Carbonaceous Bentonite as a Low-Cost Acidic Catalyst for Effective Transesterification of Used Sunflower Oil into Diesel; Statistical Modeling and Kinetic Properties

Effect of inevitable ions on kerosene droplet formation and evolution

Development of magnetic flotation hybrid separation process for cleaner coal preparation

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